NOUS41 KWBC 252000 
PNSWSH 

Public Information Statement 21-18 
National Weather Service Headquarters Silver Spring MD 
400 PM EDT Thu Mar 25 2021 

To:      Subscribers: 
 -NOAA Weather Wire Service 
 -Emergency Managers Weather Information Network 
 -Satellite Broadcast Network/NOAAPort 
 Other NWS partners and NWS employees 

From:    Michelle Mainelli 
 Director, Office of Dissemination 

Subject: Static Radar Image Files Return to EMWIN 
 Services March 24, 2021 

The broadcast of static Radar Image files suspended on December 16, 2020, as announced in 
Service Change Notice 20-117, have resumed over the Geostationary Operational Environmental 
Satellite (GOES)-East and West High-Rate Information Transmission (HRIT) / Emergency Managers 
Weather Information Network (EMWIN) satellite broadcast on virtual channel 21. 

These files concurrently returned to the enterprise EMWIN File Transfer Protocol (FTP) image archive file server: 
https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/OPS/ 

Further information on the Radar products is documented under 
Title-03 through 12, in the updated EMWIN Image Catalog:  
https://www.weather.gov/media/emwin/EMWIN_Image_and_Text_Data_Capture_Catalog_v1.3d.pdf 

For more information, please contact NWS EMWIN Support at: 
nws.emwin.support@noaa.gov 

National Public Information Statements are online at: 
https://www.weather.gov/notification/ 

NNNN 

NOUS41 KWBC 241200 AAA
PNSWSH

Service Change Notice 20-117 Update
National Weather Service Headquarters Silver Spring MD
800 AM EST Wed Feb 24 2021

To:      Subscribers: 
 -NOAA Weather Wire Service 
 -Emergency Managers Weather Information Network 
 -Satellite Broadcast Network/NOAAPort 
 Other NWS partners and NWS employees 

From:    Michelle Mainelli 
 Director, Office of Dissemination 

Subject: Updated: Static Radar Image Files Temporarily Suspended
 on EMWIN Services, Effective December 16, 2020

Updated to correct the date for the return of the Static Radar Image Files on the EMWIN services from February 26, 2021, to a
date to be determined.

On or about December 16, 2020, NWS temporarily suspended 10 static Radar Image files sent over the Geostationary Operational
Environmental Satellite (GOES)-East and West High Rate Information Transmission (HRIT) / Emergency Managers Weather
Information Network (EMWIN) satellite broadcast on virtual channel 21. These products are published on the enterprise EMWIN
File Transfer Protocol (FTP) archive file server. The products will be suspended pending completion of the NWS migration to the
new Ridge 2 radar product generation services.

The suspended Radar products are listed/documented under Title-03 through 12, in the EMWIN Image and Text Data Capture
Catalog: https://www.weather.gov/media/emwin/EMWIN_Image_and_Text_Data_Capture_Catalog_v1.3b_r180817.pdf

The static Radar Image files should return to the EMWIN services by a date yet to be determined. A separate NWS Public
Information Statement (PNS) will be released when the suspended static Radar files have been reinstated on the EMWIN services.
In the interim and effective on or about December 16, 2020, users may obtain Ridge 2 static radar image files for individual 
radar sites at the following Ridge 2 services URL: https://radar.weather.gov/ridge/lite/

Send questions on the information in this bulletin to:
nws.emwin.support@noaa.gov

Questions on the Ridge 2 radar products may be address to:
- product comments and feedback: nwsradarfeedback@noaa.gov
- operational service issues: nco.ops@noaa.gov
- product support issues: idp-support@noaa.gov

National Service Change Notices are online at:
https://www.weather.gov/notification/ 

NNNN

 
NOUS41 KWBC DDHHMM 
PNSWSH 

Service Change Notice 20-117 
National Weather Service Headquarters Silver Spring MD 
120 PM EST Tue Dec 15 2020 

To:      Subscribers: 
 -NOAA Weather Wire Service 
 -Emergency Managers Weather Information Network 
 -Satellite Broadcast Network/NOAAPort 
 Other NWS partners and NWS employees 

From:    Michelle Mainelli 
 Director, Office of Dissemination 

Subject: Static Radar Image Files Temporarily Suspended on 
 EMWIN Services, Effective December 16, 2020 

On or about December 16, 2020, ten static Radar Image files sent over the Geostationary Operational Environmental 
Satellite (GOES)-East and West High Rate Information Transmission (HRIT) / Emergency Managers Weather Information 
Network (EMWIN) satellite broadcast on virtual channel 21, and published on the enterprise EMWIN File Transfer 
Protocol (FTP) archive file server, will be temporarily suspended pending completion of the NWS migration to the 
new Ridge 2 radar product generation services.   

The suspended Radar products are listed/documented under Title-03 through 12, in the EMWIN Image and Text Data 
Capture Catalog: https://www.weather.gov/media/emwin/EMWIN_Image_and_Text_Data_Capture_Catalog_v1.3b_r180817.pdf

The static Radar Image files should return to the EMWIN services by March 30, 2021. A separate NWS Public 
Information Statement (PNS) will be released when the static Radar files have been reinstated on the EMWIN services.     

In the interim and effective on or about December 16, 2020, users may obtain Ridge 2 static radar image files for 
individual radar sites at the following Ridge 2 services URL:  https://radar.weather.gov/ridge/lite/

Questions on the information in this bulletin may be addressed to: nws.emwin.support@noaa.gov 

Questions on the Ridge 2 radar products may be address to: 
- product comments and feedback:  nwsradarfeedback@noaa.gov
- operational service issues, contact:  nco.ops@noaa.gov
- product support issues, contact: idp-support@noaa.gov

National Service Change Notices are online at: 
https://www.weather.gov/notification/ 

NNNN 

NOUS41 KWBC 182010 PNSWSH

Public Information Statement 20-85
National Weather Service Headquarters Silver Spring MD
410 PM EST Wed Nov 18 2020

To:	        Subscribers:
       -NOAA Weather Wire Service
       -Emergency Managers Weather Information Network
       -NOAAPort
        Other NWS Partners, Users and Employees

FROM:	        Brian Gross Acting Director
        National Centers for Environmental Prediction

SUBJECT:	Seeking Comments on Proposed Changes to User Access of NCEP Web Services through December 18, 2020
The NWS National Centers for Environmental Prediction (NCEP) is seeking public comments through December 18, 2020, 
on the management of user access of the NCEP Web Services.

As demand for data continues to grow across NCEP websites, we are proposing to put new limits into place to 
safeguard our web services. The frequency of how often these websites are accessed by the public has created 
limitations and infrastructure constraints. To add new or upgraded streams of data, there has to be a reduction 
in the number of connections into our system. The mitigation will reduce the strain on our infrastructure, 
ensuring a more robust level of service for all users.

For example, a possible mitigation would lower the limit of the number of connections to 60 per minute for a given 
user accessing any of the websites below. This would be a cumulative limit for any type of data request across any 
website. A "head" request will count towards the limit the same as a "get" request.

Websites affected, both ftp and https, would include: 

nomads.ncep.noaa.gov
ftp.ncep.noaa.gov 
www.ftp.ncep.noaa.gov 
ftpprd.ncep.noaa.gov 
mag.ncep.noaa.gov
tgftp.nws.noaa.gov
aviationweather.gov 
weather.gov 
alerts.weather.gov 
w1.weather.gov 
w2.weather.gov/climate 
w2.weather.gov/dmawds 
airquality.weather.gov 
graphical.weather.gov 
digital.weather.gov 
ra4-gifs.weather.gov 
hamradio.noaa.gov 
weather.gov/spot 
water.weather.gov 
marine.weather.gov 
forecast.weather.gov 
mobile.weather.gov 
ocean.weather.gov 
radar.weather.gov 
api.weather.gov 
tsunami.gov 
madis.ncep.noaa.gov
madis-data.ncep.noaa.gov 
hads.ncep.noaa.gov 
amdar.ncep.noaa.gov 
mrms.ncep.noaa.gov/data 
water.noaa.gov 
inws.ncep.noaa.gov 
iris.ncep.noaa.gov 
nowcoast.ncep.noaa.gov 
idpgis.ncep.noaa.gov
Gisc-washington.ncep.noaa.gov 
cts.ncep.noaa.gov 
charts.noaa.gov 
tileservice.charts.noaa.gov 
Radar2pub.ncep.noaa.gov 
Radar3pub.ncep.noaa.gov 
Ocean.ncep.noaa.gov 
www.cpc.ncep.noaa.gov 
vlab.ncep.noaa.gov 
emc.ncep.noaa.gov 
polar.ncep.noaa.gov 
hysplit.ncep.noaa.gov 
ctbto.ncep.noaa.gov 
www.ncep.noaa.gov 
www.nco.ncep.noaa.gov 
www.lib.ncep.noaa.gov
mageval.ncep.noaa.gov

This list is not all inclusive. Any direct URLs such as "origin, " or any non-operational URLs such as "dev," "qa," 
or "preview" will also be impacted.

NCEP will be holding a virtual public forum to discuss this and other mitigation options on December 8, 2020, 
at 2 pm EST. Please register for the meeting at: https://register.gotowebinar.com/register/6331491940012140301

Please send questions and comments regarding this mitigation plan to:

NCO Implementation and Data Services Branch 
Carissa Klemmer, Chief 
idp.feedback@noaa.gov

We will review any feedback we receive, and will notify users via a Service Change Notice (SCN) of any operational 
changes.

National Weather Public Information Statements are online at: https://www.weather.gov/notification/

NNNN

NOUS41 KWBC 101935
PNSWSH

Public Information Statement 20-82
National Weather Service Headquarters Silver Spring MD
335 PM EST Tue Nov 10x 2020

To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS partners and NWS employees

FROM: Allison Allen, Chief
NWS Marine, Tropical, and Tsunami Services Branch

SUBJECT: National Tsunami Warning Center Routine Communications
Tests for the West Coast and Alaska Coast to take place
on November 13, 2020

The NWS National Tsunami Warning Center (NTWC) and coastal NWS Weather Forecast Offices (WFO) will perform routine 
monthly Tsunami communication tests to ensure end-to-end readiness of NWS dissemination software and hardware on 
Friday, November 13, 2020, for Alaska and West Coast states.

The intended recipients of these communication tests include designated national focal points, state/territorial 
warning points, coastal WFOs, U.S. Coast Guard, and critical military dissemination points.

Each test message will be clearly identified as such, and will be consistent with the product changes implemented 
by Service Change Notice 18-94: Changes to Valid Time Event Codes (VTEC) and Event Tracking Numbers (ETN) for 
Domestic Tsunami Test Products Effective April 1, 2019.

https://www.weather.gov/media/notification/pdfs/scn18-94vtec_tsunami.pdf

VTEC codes for the test messages will start with the /T fixed identifier (versus /O for operational messages). 
To provide additional assurance that a test message is not inadvertently distributed as an actual 
Warning/Advisory/Watch product, Event Tracking Numbers (ETN) for the test messages will begin with 9 as the 
leading digit of the four character code.

The text products affected by routine monthly tsunami communication testing are the national tsunami products 
issued under the following AWIPS Product Identifiers (PIL) and World Meteorological Organization (WMO) Identifiers 
(ID):

NTWC Product AWIPS PIL WMO ID
------------ --------- ------
Segmented Tsunami W/W/A TSUWCA WEPA41 for West Coast/BC/Alaska
Public Tsunami W/W/A TSUAK1 WEAK51 for West Coast/BC/Alaska
Routine tsunami communications testing will continue monthly. 

WFOs participating in the national monthly tsunami communications test are listed below by NWS Region:

NWS Alaska Region
Anchorage, AK (AFC)
Juneau, AK (AJK)
NWS Western Region
Seattle/Tacoma, WA (SEW)
Portland, OR (PQR)
Medford, OR (MFR)
Eureka, CA (EKA)
San Francisco, CA (MTR)
Los Angeles, CA (LOX)
San Diego, CA (SGX)

For more information, please contact:
Mike Angove
NWS Tsunami Services Program Leader
Silver Spring, MD
301-427-9375
Michael.Angove@noaa.gov

National Public Information Notices are online at:
https://www.weather.gov/notification/

NNNN

NOUS41 KWBC 061730  
PNSWSH  

Public Information Statement 20-80  
National Weather Service Headquarters Silver Spring MD  
130 PM EST Fri Nov 6 2020  

To:       Subscribers:  
  -NOAA Weather Wire Service  
  -Emergency Managers Weather Information Network  
  -NOAAPort  
  Other NWS partners and NWS employees  

FROM:     Allison Allen, Chief 
  NWS Marine, Tropical, and Tsunami Services Branch  

SUBJECT:  NWS to issue National Tsunami Warning Center Routine  
Communications Tests for the East and Gulf Coast on November 10, 2020  

The NWS National Tsunami Warning Center (NTWC) and coastal NWS  
Weather Forecast Offices (WFO) will perform routine monthly tsunami communication tests to ensure end-to-end 
readiness of  NWS dissemination software and hardware on Tuesday November 10,  
2020, for East and Gulf Coast states. In the event NWS declares  a Critical Weather Day, this test will be 
postponed. 

The intended recipients of these communication tests include designated national focal points, state/territorial 
warning points, coastal WFOs, U.S. Coast Guard, and critical military dissemination points.  

Each test message will be clearly identified as such, and will be consistent with the product changes implemented 
by SCN18-94: Changes to Valid Time Event Codes (VTEC) and Event Tracking  Numbers (ETN) for Domestic Tsunami Test 
Products,  Effective April 1, 2019  
https://www.weather.gov/media/notification/pdfs/scn18-94vtec_tsunami.pdf

VTEC codes for the test messages will start with the /T fixed identifier versus /O for operational messages. 
To provide additional assurance that a test message is not inadvertently distributed as an actual 
Warning/Advisory/Watch product, Event Tracking Numbers (ETN) for the test messages will begin with 9 
as the leading digit of the four-character code. 

The text products affected by routine monthly tsunami communication testing are the national tsunami products 
issued under the following AWIPS Product Identifiers (PIL) and World Meteorological Organization (WMO) Identifiers 
(ID):  

NTWC Product                AWIPS PIL       WMO ID  
------------                ---------       ------  
Segmented Tsunami W/W/A     TSUAT1          WEXX20  
for U.S. Atlantic Coast  
Gulf Coast, and Canada  
East Coast  

Public Tsunami W/W/A        TSUATE          WEXX30  
for U.S. Atlantic Coast  
Gulf Coast, and Canada  
East Coast  

Routine tsunami communications testing will continue monthly.  
WFOs taking part in the national monthly tsunami communications test are listed below by NWS Region:  

NWS Eastern Region  
Boston, MA (BOX)  
Caribou, ME (CAR)  
Charleston, SC (CHS)  
Gray/Portland, ME (GYX)  
Mount Holly, NJ (PHI)  
Newport/Morehead City, NC (MHX)  
New York, NY (OKX)  
Sterling, VA (LWX)  
Wakefield, VA (AKQ)  
Wilmington, NC (ILM)  

NWS Southern Region  
Brownsville, TX (BRO)  
Corpus Christi, TX (CRP)  
Houston, TX (HGX)  
Jacksonville, FL (JAX)  
Key West, FL (KEY)  
Lake Charles, LA (LCH)  
Melbourne, FL (MLB)  
Miami, FL (MFL)  
Mobile, AL (MOB)  
New Orleans, LA (LIX)  
Tallahassee, FL (TAE)  
Tampa Bay Area, FL (TBW) 

For more information, please contact:  

Mike Angove  
NWS Tsunami Services Program Leader  
Silver Spring, MD 20910  
301-427-9375  
Michael.Angove@noaa.gov

National Public Information Notices are online at:  
https://www.weather.gov/notification/ 

NNNN 

PNSWSH

Service Change Notice 20-96
National Weather Service Headquarters Silver Spring MD 330 PM EDT Wed Octg 21 2020

To:	Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
 Other NWS partners and NWS employees

FROM:	Allison Allen, Chief
NWS Marine, Tropical, and Tsunami Services Branch

SUBJECT: Network Maintenance on October 22, 2020, to Affect Dissemination of Tsunami Products

On October 22, 2020, NWS/NCO will be performing network maintenance, described in SCN 20-94:
https://www.weather.gov/media/notification/SCN20-94_FAA_Maintenance_10222020.pdf.

This maintenance will cause an outage of a select set of products for 1 hour from 0630z to 0730z. NWS will not 
send a sub-set of products to the Federal Aviation Administration (FAA) during the outage. Users should be 
advised that alerts from the National Tsunami Warning Center and Pacific Tsunami Warning Center will not be 
disseminated over Aeronautical Fixed Telecommunications Network (AFTN). In the event of Critical Weather Day (CWD), 
this maintenance will be postponed.

Tsunami products will be available on all other NWS dissemination systems including: National Warning System (NAWAS)
Alaska Warning System (AKWAS) Hawaii Warning System (HAWAS)
Wireless Emergency Alerts (WEA), where applicable NOAA Weather Radio (NWR)
Emergency Alert System (EAS) Email subscription
Fax subscription SMS subscription Tsunami.gov


For more information, please contact: Mike Angove
NWS Tsunami Services Program Leader Silver Spring, MD
301-427-9375
Michael.Angove@noaa.gov

National Service Change Notices are online at: https://www.weather.gov/notification/

NNNN

NOUS41 KWBC 301140
PNSWSH

Public Information Statement 20-70
National Weather Service Headquarters Silver Spring MD
740 AM EDT Wed Sep 30 2020

To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS partners and NWS employees

From: Allison Allen
Chief, NWS Marine, Tropical, and Tsunami Services Branch

Subject: Soliciting comments through October 30, 2020, on potential changes to Tsunami Advisory text product 
formats.

To view this Public Information Statement in Spanish see this link:
(Para acceder al Comunicado de Informacion Publica en espanol presione aqui:)
https://www.weather.gov/media/notification/pdf2/pns20-69tsunami_hazsimp_spanish.pdf

NWS is collecting comments through October 30, 2020, on proposed changes to its Tsunami Advisory products. 
This proposal is part of the broader Hazard Simplification effort within NWS.

NWS currently issues Tsunami Advisory products to alert stakeholders to lower-magnitude tsunami events that 
may pose a danger to coastal communities. In some situations, Tsunami Advisory products may be misunderstood
in terms of their expected impacts to coastal populations, along with the associated protective actions that 
need to be taken. It is proposed that a new way of communicating the exact nature of the danger may reduce some 
of the confusion surrounding these lower-magnitude products. Therefore, the NWS is soliciting comments on 
potential new product options as follows:

Option A: Tsunami Warning for Strong Currents [with Tsunami in Header]
Option B: Harbor and Beach Warning [without Tsunami in Header]
Option C: Harbor and Beach Tsunami Warning [with Tsunami in Header]

Please see the NWS Product Description Document (PDD) for more details:
https://nws.weather.gov/products/PDD/PDD_Tsunami_Advisory_Products_for_HazSimp_2020-9-25-20.pdf

Please provide feedback concerning these options using the following link:
https://www.surveymonkey.com/r/tsunamiadvisory
En español: https://www.surveymonkey.com/r/SpanishTsunami

Based on feedback received, NWS may implement this new product language and text format.

For more information, please contact:
Mike Angove
NWS Tsunami Services Program Leader
Silver Spring, MD
301-427-9375
Michael.Angove@noaa.gov
National Public Information Statements are online at:
https://www.weather.gov/notification/

NNNN

NOUS41 KWBC 301120
PNSWSH

Declaración de Información Pública 20-69
Oficina Central del Servicio Nacional de Meteorología (SNM) en Silver Spring, MD
720 AM EDT Wed Sep 30 2020
Para: Suscriptores:
-Servicio de Cable Meteorológico de la NOAA
-Redes de Información del Tiempo de Manejo de Emergencias
-Puerto NOAA
Otros socios del SNM y empleados del SNM
De: Allison Allen
Jefa, Marina SNM, Tropical, y Subdivisión de Servicios de Tsunami

Asunto: Se solicitan comentarios hasta el 30 de Octubre de 2020 para posibles cambios en el texto de los formatos 
de los productos de Advertencia de Tsunami. 

El Servicio Nacional de Meteorología está recopilando comentarios hasta el 
30 de Octubre de 2020 sobre los cambios propuestos en sus productos de Advertencia de Tsunami. Esta propuesta 
forma parte del esfuerzo más amplio de Simplificación de Riesgos dentro del SNM.

Actualmente, el SNM emite productos de Advertencia de tsunami para alertar a las partes interesadas sobre eventos 
de tsunami de menor categoría que pueden representar un peligro para las comunidades costeras. En algunas 
situaciones, los productos de Advertencia pueden ser malinterpretados en cuanto a lo que el nivel de Advertencia 
significa para las poblaciones costeras, y las acciones que deben seguir. Se propone que una nueva forma de 
identificar el peligro, pueda reducir parte de la confusión que rodea a estos productos de categoría inferior. 
Por lo tanto, el SNM está solicitando comentarios sobre posibles opciones de nuevos productos de la siguiente 
manera:

Opción A:
Advertencia de Tsunami para Corrientes Fuertes [con encabezado de Tsunami]
Opción B:
Advertencia de Puerto y Playa [sin encabezado de Tsunami]
Opción C:
Advertencia de Puerto y Playa [con encabezado de Tsunami]

Consulte el Documento de Descripción del Producto (PDD por sus siglas en inglés) del SNM, para obtener más detalles:
https://nws.weather.gov/products/PDD/PDD_Tsunami_Advisory_Products_for_HazSimp_2020-9-25-20.pdf

Puede emitir sus comentarios sobre estas opciones utilizando el siguiente enlace:
https://www.surveymonkey.com/r/SpanishTsunami

Basado en los comentarios que se reciban, el SNM podrá implementar este nuevo lenguaje de productos y el 
formato de texto.

Para más información, puede contactarse con:
Mike Angove
Líder del Programa de Servicios de Tsunami SNM
Silver Spring, MD
301-427-9375
Michael.Angove@noaa.gov

Las Declaraciones Nacionales de Información Pública se encuentran en línea en:
https://www.weather.gov/notification/

NNNN

NOUS41 KWBC 251720 
PNSWSH 

Public Information Statement 20-68 
National Weather Service Headquarters Silver Spring MD 
120 AM EDT Fri Sep 25 2020 

To:     Subscribers: 
-NOAA Weather Wire Service 
-Emergency Managers Weather Information Network 
-NOAAPort 
Other NWS partners and NWS employees 

FROM:   Mike Angove, Chief (acting) 
NWS Marine, Tropical, and Tsunami Services Branch 

SUBJECT: Network Maintenance on September 28, 2020, to Affect Dissemination 
of Tsunami Products 

On or about September 28, 2020, NWS/NCO will be performing network maintenance 
that will cause an outage for approximately three (3) hours from 0600z to 0900z. Some 
NWS products and data will be unavailable via NOAAPort/Satellite Broadcast Network 
(SBN) and NCEP Web Services during the outage. In the event of Critical Weather Day 
(CWD), this maintenance will be postponed. 

During the outage window, the National Tsunami Warning Center and Pacific Tsunami 
Warning Center messages will be capable of alerting partners and users through: 

National Warning System (NAWAS) 
Alaska Warning System (AKWAS) 
Hawaii Warning System (HAWAS) 
Wireless Emergency Alerts (WEA), where applicable 
NOAA Weather Radio (NWR) 
Emergency Alert System (EAS) 
Email subscription 
Fax subscription 
SMS subscription 
Tsunami.gov 

US National Weather Service Social media channels 

Users should be advised that the National Tsunami Warning Center and Pacific 
Tsunami Warning Center will not be able to communicate over internal National 
Weather Service and other Federal networks, including: 

Advanced Weather Information Processing System (AWIPS) 
NOAA Weather Wire 
NOAAPort/SBN 
Aeronautical Information System Replacement (AISR) 

Emergency management and alert systems and networks that rely on automation 
through these services may have a delay or not receive normal messages or triggers. 
During this outage window, the NWS encourages partners and users to be ready to 
receive information through alternative means if a tsunami event takes place. 

More details of the realignment can be found in the previously-issued SCN: 
https://www.weather.gov/media/notification/pdf2/scn20-86noaaport_outageaab.pdf

For more information, please contact: 

Mike Angove 
NWS Tsunami Services Program Leader 
Silver Spring, MD 
301-427-9375 
Michael.Angove@noaa.gov 

National Public Information Notices are online at: 

https://www.weather.gov/notification/

NNNN 

NOUS41 KWBC 211220 AAB 
PNSWSH 

Service Change Notice 20-86 Updated 
National Weather Service Headquarters Silver Spring MD 
820 AM EDT Mon Sep 21 2020 

To:        Subscribers: 
   -NOAA Weather Wire Service 
   -Emergency Managers Weather Information Network 
   -NOAAPort 
   Other NWS Partners, Users and Employees 

From:      Ben Kyger, Director 
   NCEP Central Operations 

Subject:   Updated: Outage of some NWS Products on SBN/NOAAPort 
   and NWS Web Services for Planned Maintenance 
   Effective date: September 28, 2020 

Updated to change the maintenance window from September 21 to September 28 due to the declaration of a Critical 
Weather Day from the tropical system in the Gulf of Mexico.  

On or about September 28, 2020, NWS/NCO will be performing network maintenance that will cause an outage for three
(3) hours from 0600z to 0900z. Some NWS products and data will be unavailable via NOAAPort/SBN and NCEP Web Services
during the outage. In the event of Critical Weather Day (CWD), this maintenance will be postponed.  

During the maintenance window, the following impacts are expected:  

1) The following data sets disseminated on NOAAPort/SBN/National Weather-Wire Service (NWWS) will not be available 
during the maintenance window, but will be queued to send once complete: 

- Tsunami Watches/Warnings 
- CAP1.2 formatted Watches, Warnings, and Advisories (WWA) messages 
- Surface observation data from the FAA’s Weather Message Switching Center Replacement (WMSCR) 
- Local Storm Reports (LSRs) 
- Site-Specific (SPOT) Forecasts 
- GOES-16, GOES-17, NOAA-20, S-NPP, and polar products (will not backfill in full) 
- NCEP Integrated Dissemination Program (IDP) Meteorological Assimilation Data Ingest System (MADIS) data 
- NCEP IDP Multi-Radar/Multi-Sensor System (MRMS) data 
- NCEP IDP Hydrometeorological Automated Data System (HADS) data 
- NCEP model data 
- NOAA20 sounder satellite products 
- Vaisala Lightning data 
- Buoy and Ship data 
- METAR data (i.e. Canadian, FAA, military) 
- International model data (i.e. ECMWF data) 
- Some NCEP Centers (i.e. CPC/WPC/OPC) products 

To the best of our ability this list encompasses the data sets impacted but may not be fully inclusive.  

2) The following data will not be available on NWS Web Services during the maintenance window, but will be 
queued to send once complete: 
https://tgftp.nws.noaa.gov
ftp://tgftp.nws.noaa.gov

It will also not be available for delivery to the WMO Global Telecommunication System (GTS), or NWS 
Telecommunication Gateway (TG) partners to include DoD and FAA.  

- Watches, Warnings, and Advisories (not including CAP1.2 format)  
/data/watches_warnings 
/SL.us008001/DF.c5/DC.textf/  
- Radar Level 3  
/SL.us008001/DF.of/DC.radar/ 
- NDFD products 
- Upper Air products 
- Observations (METARs, SPECIs, Marine, etc) 
- Forecast discussion products 
- WFO zone forecast products 
- Terminal Area Forecast (TAF) data  
- Some SPC, NHC, and AWC products 

3) Watches, Warnings, and Advisories will not be available through the EDIS (Email Data Input System) application.  

4) The 13Z through 15Z Real-Time Mesoscale Analysis (RTMA) and associated precipitation analysis products will 
likely experience some degradation due to expected missing input data during the outage. 

For questions regarding this migration and the detailed impacts above, please contact: 

Carissa Klemmer, Chief 
NCO Implementation and Data Services Branch, Dataflow Team 
ncep.pmb.dataflow@noaa.gov

NWS Service Change Notices are online at: 
https://www.weather.gov/notification/

NNNN   

NOUS41 KWBC 242455  PNSWSH 

Public Information Statement 20-67
National Weather Service Headquarters Silver Spring, MD
1055 AM EDT Thu Sep 24 2020

To:         Subscribers:               
    -NOAA Weather Wire Service
    -Emergency Managers Weather Information Network
    -NOAAPort               
    Other NWS partners and NWS employees 

From:       Allison Allen
    Chief, NWS Marine, Tropical, and Tsunami Services Branch 

Subject: Soliciting comments through October 30, 2020 for potential changes to Tsunami Advisory text product 
formats. 

The NWS is collecting comments through October 30, 2020, on proposed changes to its Tsunami Advisory products.
This proposal is part of the broader Hazard Simplification effort within NWS.   
NWS currently issues Tsunami Advisory products to alert stakeholders to lower magnitude tsunami events that 
may pose a danger to coastal communities.  In some situations, Tsunami Advisory products may be misunderstood 
in terms of their expected impacts to coastal populations, along with the associated protective actions that 
need to be taken. It is proposed that a new way of communicating the exact nature of the danger may reduce 
some of the confusion surrounding these lower-magnitude products.  Therefore, the NWS is soliciting comments on
potential new product options as follows: 

Option A:  Tsunami Warning for Strong Currents [with Tsunami in Header] 
Option B:  Harbor and Beach Warning [without Tsunami in Header] 
Option C:  Harbor and Beach Tsunami Warning [with Tsunami in Header] 

Please see the NWS Product Description Document (PDD) for more details: 
https://nws.weather.gov/products/PDD/PDD_TsunamiAdvisoryProducts_HazSimp_2020.pdf

Feedback concerning these options can be provided using the following link:  
https://www.surveymonkey.com/r/tsunamiadvisory

Based on feedback received, NWS may implement this new product language and text format. 

For more information, please contact: 

Mike Angove NWS Tsunami Services Program Leader Silver Spring, MD 301-427-9375 Michael.Angove@noaa.gov

National Public Information Statements are online at: https://www.weather.gov/notification/

NNNN 

Effective 2020/07/02

NOUS41 KWBC 021720
PNSWSH

Public Information Statement 20-50
National Weather Service Headquarters Silver Spring, MD
120 PM EDT Thu Jul 2 2020

To:      Subscribers:
 -NOAA Weather Wire Service
 -Emergency Managers Weather Information Network
 -NOAAPort
 Other NWS Partners and NWS Employees

From:    Michelle Hawkins, Chief
 Severe, Fire, Public, and Winter Weather Services
 Branch

Subject: Seeking comments through August 2, 2020on on proposed replacement
 of RIDGE I radar webpage with RIDGE II radar webpage

NWS is proposed to replace the Radar Integrated Display with Geospatial Elements
(RIDGE) Radar Version I webpage with the Version lI webpage. NWS is soliciting
comments on the proposed RIDGE II radar webpage through August 2, 2020.

RIDGE I operational URL: https://radar.weather.gov
RIDGE II preview URL**:  https://preview-radar.weather.gov/
**At this time the URL is currently only intended for users to provide feedback. Users
should not set up operational feeds from it.

The RIDGE Version II would replace RIDGE Version I of FLASH with HTML5 and
Javascript with a web-based and mobile-friendly display that uses Multi-Radar 
MultiSensor (MRMS) datasets on an interactive map containing Open Geospatial
Consortium (OGC) compliant layers. Along with the included radar products, users
would also have the ability to display NWS long- and short-fused Watches, Warnings,
and Advisories.

The web map is optimized for small and large screen devices. Users can bookmark a
particular perspective of the map or select and save the perspective of a particular
radar. As a result, there would no longer be a need for the individual web pages that
display specific Weather Surveillance Radar-1988 Doppler (WSR-88D) products. These
webpages (ex. https://radar.weather.gov/radar.php?rid=aaa; where ‘aaa’ is the 3-letter
identifier of the radar) will be discontinued along with RIDGE I.

For further details, please see the Product Description Document:
https://nws.weather.gov/products/PDD/PDD_ExpRidgeII_2020.pdf

The preview geoTIF images can be accessed at:
https://mrmst.ncep.noaa.gov/data/RIDGEII/

If approved for replacement, the NWS will issue a Service Change Notice (SCN)
detailing when the RIDGE II webpage will be supported operationally. The SCN would
also specify the transition period from RIDGE I to RIDGE II. At that point, the current
RIDGE I webpage (https://radar.weather.gov) would run in-parallel with the new RIDGE
II webpage for 75 days to enable users to transition to RIDGE II. At the end of the 75
days RIDGE II will replace RIDGE I.
The NWS will evaluate all comments during this period and will determine any additional
and immediate need for changes, based on public feedback. Please provide feedback
through the NWS survey at:
https://www.surveymonkey.com/r/ProposedRidge2

For questions regarding the information in this notice, please contact:
Greg Schoor
NWS Severe Weather Services Program Leader
Norman, OK 73072
gregory.m.schoor@noaa.gov
or
IDP GIS Support Team
NOAA/NWS/IDP
Silver Spring, MD
idp.gis.support@noaa.gov

NWS Public Information Notices are online at:
https://www.weather.gov/notification/

NNNN

Effective 2020/06/30

NOUS41 KWBC 291645 AAC PNSWSH

Public Information Statement 20-14 Updated National Weather Service Headquarters 
Silver Spring MD 1145 AM EDT Mon Jun 29 2020

To:       
Subscribers:     -NOAA Weather Wire Service
         -Emergency Managers Weather Information Network           
         -NOAAPort           
          Other NWS Partners and NWS Employees

From:             Allison Allen, Chief           
          Marine, Tropical and Tsunami Weather Services Branch

Subject:          Updated: Soliciting Comments on Proposal to Change           
          Small Craft Advisory to Small Craft Warning through
          August 31, 2020

          Updated to extend deadline to August 31, 2020. 

The NWS is considering a major change to the Watch, Warning and Advisory (WWA) system 
(for information on this and other proposed changes, see: https://www.weather.gov/hazardsimplification/. 

The proposed new system would remove the terms "Advisory," "Special Weather Statement," and "NOWcast" as 
headlines, and streamline all subWatch and sub-Warning information into a single, plain-language Statement, 
with a few exceptions.  One exception to this change includes the marine Small Craft Advisory (SCA), one 
of the advisories included in the Marine Weather Message (MWW) product and the Coastal Waters Forecast (CWF) 
product.

Due to the critical nature and use of the information of the Small Craft Advisory and that associated conditions
require vessels of a certain size to take protective action, NWS proposes to rename this advisory to Small Craft 
Warning instead of converting it to a plain-language statement.  The NWS regional criteria for issuing Small Craft 
Warnings would remain the same as it is for Small Craft Advisories. 

Here is a link to the current regional SCA criteria: https://www.weather.gov/marine/faq#13

At this time, the NWS is soliciting specific feedback on the proposal to change a Small Craft Advisory to a Small 
Craft Warning, including the headlines.

A description of the proposal to change Small Craft Advisory to Small Craft Warning, product examples, 
and requirements explanation can be found at the following link:

https://nws.weather.gov/products/PDD/PDD_ProposaltoChangeSmallCraftAdvisorytoWarning_2020.pdf 

To provide feedback to this proposal, take the survey at: 
https://www.surveymonkey.com/r/VZGX6BF 

Darren Wright 
NWS Marine Program Leader Silver Spring, MD  20910 
301-427-9283 darren.wright@noaa.gov 

National Public Information Notices are online at: https://www.weather.gov/notification/

NNNN 

Effective 2020/06/11

NOUS41 KWBC 061500
PNSWSH

Public Information Statement 20-43
National Weather Service Headquarters, Silver Spring, MD
1100 AM EDT Thu Jun 11 2020

 To:         Subscribers:             

              -NOAA Weather Wire Service            
              -Emergency Managers Weather Information Network            
              -NOAAPort             
               Other NWS Partners and NWS Employees

 From:     Eli Jacks, Chief, Forecast Services Division 

Subject:   Soliciting comments through August 21, 2020, on proposed major changes to the NWS Watch,
                Warning, and Advisory (WWA) system.

 As the core outcome of the Hazard Simplification (Haz Simp) project, the NWS is collecting comments through August 21, 2020,
on the proposed discontinuation of "Advisory, " "Special Weather Statement, " and "Short Term Forecast" headlines. In their place,
NWS proposes the use of generic, plain language statements to convey information for lower-level hazardous events that are not
expected to reach the “Watch” or "Warning" levels. All current "Watch" and "Warning" products, used to highlight hazards that pose
a threat to life and property, would remain unchanged.

 The purpose of this proposal is to address extensive social science research, which indicated three main concerns:

1) Large number of existing WWA products can create confusion for NWS partners and the public
2) Formats of WWA and other key messaging products are inconsistent
3) WWA headlines can be misunderstood, leading to unintended protective action or lack thereof.

More details on this proposal, along with a library of examples showing how current messages would transition to plain language
statements, can be found in the Product Description Document (PDD):
https://nws.weather.gov/products/PDD/PDD_Proposed_FinalHazSimpProposal_2020.pdf

Comments and feedback on these proposed changes may be directed to the NWS via an online survey form at:
https://www.surveymonkey.com/r/publichazsimp

Please send questions on this proposed change vy by August 21, 2020, to hazsimp@noaa.gov

National Service Change Notices are online at: https://www.weather.gov/notification/

NNNN

Effective 2020/06/01

NOUS41 KWBC 011235
PNSWSH
Public Information Statement 20-37
National Weather Service Headquarters Silver Spring MD
835 AM EDT Mon Jun 1 2020

To:      Subscribers:
-NOAA Weather Wire Services
-Emergency Managers Weather Information Network
-NOAAPort
 Other NWS Partners and NWS employees

From:    Allison Allen, Chief
 NWS Marine, Tropical, and Tsunami Services Branch

Subject: NWS is Soliciting Feedback from Specified Partner Sectors
 on their Use of NWS Tropical Products and Services
 through June 30, 2021.

The NWS Tropical Services Program is accepting comments from specified partner
sectors through June 30, 2021, on their use of NWS tropical products and services.
Tropical products are used by a variety of users including broadcast media, emergency
management/public safety officials, and software/web/app developers. The NWS is now
seeking feedback specifically from these users on how tropical products and services
are accessed and used during high-impact events.

There are three specific target sectors for this survey:
(1) Users who communicate the information from NWS tropical products directly to the
public,
(2) Emergency management officials that use information from NWS tropical products to
make and message public safety decisions, and
(3) Those who repackage the information from the NWS tropical products primarily
through parsing (i.e., the use of software or other tools to automatically process
products to extract all or parts of the product).

The survey is available at the following link and will remain open until June 30, 2021:

https://www.surveymonkey.com/r/NWSTropicalProducts

The NWS Hurricane Harvey Service Assessment Finding 2 stated “...local tropical
products were not widely used by the media and other core partners during Hurricane 
Harvey.” The assessment goes on to recommend that “Local offices, Regional
Headquarters, and the NWS Tropical Program should determine whether partners’ lack
of use of local tropical products was peculiar to Hurricane Harvey or represents a
broader condition affecting other coastal areas.” The Hurricane Harvey NWS Service
Assessment can be found here:

https://www.weather.gov/media/publications/assessments/harvey6-18.pdf

The results of this survey will be used to gain a general understanding of how specific
partner sectors use and access NWS tropical products, and to make an informed
decision on specific changes that may be needed to ensure the products are effective
and meeting partners’ needs. Proposed changes to NWS products/services will be open
for broader public comment before implementation.

The NWS Tropical Services Program provides programmatic leadership for the nation‘s
tropical weather program, which includes operations at the National Hurricane Center
(NHC), the Central Pacific Hurricane Center (CPHC), and NWS Weather Forecast
Offices (WFOs). Please send comments and questions regarding this survey to the
Tropical Services Program at:

Tropical.Program@noaa.gov

Public Information Statements are online at:

https://www.weather.gov/notification/

NNNN

Effective 2020/04/23

NOXX10 KWBC 231145
Data Management Message 04-20.01

To:           RA-IV EMWIN, GNC-A and GIFS Customers

From:      GISC/RTH Washington Data Management

Subject:  Bulletins on EMWIN, GNC-A and GIFS Impacted by
               PSN20-19 - Public Comments Due by April 30, 2020

1.  The US NWS released PSN20-19 on April 1, 2020, identifying
groups of Global Forecast System (GFS) products for removal and
soliciting public comments on this proposed action through April
30, 2020. A copy of the PNS is available here:

https://www.weather.gov/media/notification/pns20-17gfs_product_removal.pdf

2.  The specific set of products identified in PNS20-19 which are
currently on the NWS EMWIN, GNC-A and GIFS dissemination services,
are identified below for your review in consideration of submitting
a response to PSN20-19:

WMO HEADER   SERVICE                      WMO HEADER   SERVICE
FBAS21-KWBC  GNC-A/GIFS                  FBPA28-KWBC  GNC-A/GIFS
FBAS22-KWBC  GNC-A/GIFS                  FBPA29-KWBC  GNC-A/GIFS
FBAS23-KWBC  GNC-A/GIFS                  FBPA30-KWBC  GNC-A/GIFS
FBAS24-KWBC  GNC-A/GIFS                  FBPA31-KWBC  GNC-A/GIFS
FBCA11-KWBC  GNC-A/GIFS/EMWIN     FBPA32-KWBC  GNC-A/GIFS
FBCA12-KWBC  GNC-A/GIFS/EMWIN     FBPA33-KWBC  GNC-A/GIFS
FBCA13-KWBC  GNC-A/GIFS/EMWIN     FBPA34-KWBC  GNC-A/GIFS
FBCA14-KWBC  GNC-A/GIFS/EMWIN     FBPA35-KWBC  GNC-A/GIFS
FBCA21-KWBC  GNC-A/GIFS/EMWIN     FBPA36-KWBC  GNC-A/GIFS
FBCA22-KWBC  GNC-A/GIFS/EMWIN     FBPA37-KWBC  GNC-A/GIFS
FBCA23-KWBC  GNC-A/GIFS/EMWIN     FBPA38-KWBC  GNC-A/GIFS
FBCA24-KWBC  GNC-A/GIFS/EMWIN     FBPA39-KWBC  GNC-A/GIFS
FBCA25-KWBC  GNC-A/GIFS/EMWIN     FBPA40-KWBC  GNC-A/GIFS
FBCA26-KWBC  GNC-A/GIFS/EMWIN     FBPA41-KWBC  GNC-A/GIFS
FBCA27-KWBC  GNC-A/GIFS/EMWIN     FBPA42-KWBC  GNC-A/GIFS
FBCA28-KWBC  GNC-A/GIFS/EMWIN     FBPA43-KWBC  GNC-A/GIFS
FBEU21-KWBC  GNC-A/GIFS                  FBPA44-KWBC  GNC-A/GIFS
FBEU22-KWBC  GNC-A/GIFS                  FBPA45-KWBC  GNC-A/GIFS
FBEU23-KWBC  GNC-A/GIFS                  FBPA46-KWBC  GNC-A/GIFS
FBEU24-KWBC  GNC-A/GIFS                  FBPA47-KWBC  GNC-A/GIFS
FBNA11-KWBC  GNC-A/GIFS/EMWIN     FBPA48-KWBC  GNC-A/GIFS
FBNA12-KWBC  GNC-A/GIFS/EMWIN     FBPA49-KWBC  GNC-A/GIFS
FBNA13-KWBC  GNC-A/GIFS                  FBPA50-KWBC  GNC-A/GIFS

WMO HEADER   SERVICE                       WMO HEADER   SERVICE
FBNA14-KWBC  GNC-A/GIFS                  FBPA51-KWBC  GNC-A/GIFS
FBNA21-KWBC  GNC-A/GIFS/EMWIN     FBPA52-KWBC  GNC-A/GIFS
FBNA22-KWBC  GNC-A/GIFS/EMWIN     FBPA53-KWBC  GNC-A/GIFS
FBNA23-KWBC  GNC-A/GIFS                  FBPA54-KWBC  GNC-A/GIFS
FBNA24-KWBC  GNC-A/GIFS                  FBPA55-KWBC  GNC-A/GIFS
FBNA25-KWBC  GNC-A/GIFS                  FBPA56-KWBC  GNC-A/GIFS
FBNA26-KWBC  GNC-A/GIFS                  FBPA57-KWBC  GNC-A/GIFS
FBNA27-KWBC  GNC-A/GIFS                  FBPA58-KWBC  GNC-A/GIFS
FBNA28-KWBC  GNC-A/GIFS                  FBSA21-KWBC  GNC-A/GIFS
FBNT11-KWBC  GNC-A/GIFS/EMWIN     FBSA22-KWBC  GNC-A/GIFS
FBNT12-KWBC  GNC-A/GIFS/EMWIN     FBSA23-KWBC  GNC-A/GIFS
FBNT13-KWBC  GNC-A/GIFS/EMWIN     FBSA24-KWBC  GNC-A/GIFS
FBNT14-KWBC  GNC-A/GIFS/EMWIN     FBUS11-KWBC  GNC-A/GIFS
FBNT15-KWBC  GNC-A/GIFS/EMWIN     FBUS12-KWBC  GNC-A/GIFS
FBNT16-KWBC  GNC-A/GIFS/EMWIN     YHPA50-KWBC  GNC-A/GIFS
FBNT17-KWBC  GNC-A/GIFS/EMWIN     YHPB50-KWBC  GNC-A/GIFS
FBNT18-KWBC  GNC-A/GIFS/EMWIN     YHPC50-KWBC  GNC-A/GIFS
FBNT21-KWBC  GNC-A/GIFS/EMWIN     YHPD50-KWBC  GNC-A/GIFS
FBNT22-KWBC  GNC-A/GIFS/EMWIN     YHPE50-KWBC  GNC-A/GIFS
FBNT23-KWBC  GNC-A/GIFS/EMWIN     YHPF50-KWBC  GNC-A/GIFS
FBNT24-KWBC  GNC-A/GIFS/EMWIN     YHPG50-KWBC  GNC-A/GIFS
FBNT25-KWBC  GNC-A/GIFS/EMWIN     YHPH50-KWBC  GNC-A/GIFS
FBNT26-KWBC  GNC-A/GIFS/EMWIN     YHPI50-KWBC  GNC-A/GIFS
FBNT27-KWBC  GNC-A/GIFS/EMWIN     YHPJ50-KWBC  GNC-A/GIFS
FBNT28-KWBC  GNC-A/GIFS/EMWIN     YHPK50-KWBC  GNC-A/GIFS
FBNT29-KWBC  GNC-A/GIFS/EMWIN     YHPL50-KWBC  GNC-A/GIFS
FBNT30-KWBC  GNC-A/GIFS/EMWIN     YHPM50-KWBC  GNC-A/GIFS
FBNT31-KWBC  GNC-A/GIFS/EMWIN     YHPN50-KWBC  GNC-A/GIFS
FBNT32-KWBC  GNC-A/GIFS/EMWIN     YHPO50-KWBC  GNC-A/GIFS
FBPA11-KWBC  GNC-A/GIFS                   YHPP50-KWBC  GNC-A/GIFS
FBPA12-KWBC  GNC-A/GIFS                   YHPQ50-KWBC  GNC-A/GIFS
FBPA13-KWBC  GNC-A/GIFS                   YHPR50-KWBC  GNC-A/GIFS
FBPA14-KWBC  GNC-A/GIFS                   YHPS50-KWBC  GNC-A/GIFS
FBPA15-KWBC  GNC-A/GIFS                   YHPT50-KWBC  GNC-A/GIFS
FBPA16-KWBC  GNC-A/GIFS                   YHPU50-KWBC  GNC-A/GIFS
FBPA17-KWBC  GNC-A/GIFS                   YHPV50-KWBC  GNC-A/GIFS
FBPA18-KWBC  GNC-A/GIFS                   YHPW50-KWBC  GNC-A/GIFS
FBPA19-KWBC  GNC-A/GIFS                   YHPX50-KWBC  GNC-A/GIFS
FBPA20-KWBC  GNC-A/GIFS                   YHPY50-KWBC  GNC-A/GIFS
FBPA21-KWBC  GNC-A/GIFS                   ZHPM50-KWBC  GNC-A/GIFS
FBPA22-KWBC  GNC-A/GIFS                   ZHPN50-KWBC  GNC-A/GIFS
FBPA23-KWBC  GNC-A/GIFS                   ZHPT50-KWBC  GNC-A/GIFS
FBPA24-KWBC  GNC-A/GIFS                   ZHPU50-KWBC  GNC-A/GIFS
FBPA25-KWBC  GNC-A/GIFS                   ZHPV50-KWBC  GNC-A/GIFS
FBPA26-KWBC  GNC-A/GIFS                   ZHPW50-KWBC  GNC-A/GIFS
FBPA27-KWBC  GNC-A/GIFS  


3.  Refer to PNS20-19 for additional information including where
to send comments and responses to the proposed actions.

4.  Questions or comments on the content of this Bulletin may be
addressed to: nws.emwin.support@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. The url is listed below.

https://w2.weather.gov/datamgmt/notices

Data Management
NCO Production Management Branch College Park MD
GISC/RTH Washington Sends
NNNN
 

Effective 2019/12/18

NOXX10 KWBC 182052
Data Management Message 12-19.01

To: Emergency Managers Weather Information Network (EMWIN) Customers

From: GISC/RTH Washington Data Management

Subject: Enterprise EMWIN Services Image and Image Archive 
File Availability Issues.

1.  Enterprise EMWIN (eEMWIN) is experiencing image file and image 
archive file availability issues.

a.  Image Files. Multiple image files have been identified as 
missing from Virtual Channel 21 on the GOES-East and GOES-West
HRIT/EMWIN satellite broadcast and FTP Server image archive files. 
Efforts are underway to isolate and correct this issue. A full 
listing of the image files and their respective public URLs 
appears in the 
"EMWIN_Image_and_Text_Data_Capture_Catalog_v1.3b_r180817" 
on the NWS EMWIN web page under the Documents tab.  Users are 
encouraged to use the image URL links to download the missing 
files until this EMWIN service issue is resolved:

NWS EMWIN Web Page: https://www.weather.gov/emwin/

b.  Image Archive File.  The three-hour image archive file 
named "imghrs03.zip" on the EMWIN anonymous FTP file server
is updated at the top of the hour.  The update process has 
been noted to post in multiple successive increments, as the 
products are written to the archive file.  If observed over
time the file may grow in size after the top of the hour.
The final complete file should post not later than 10 minutes 
past the top of the hour.  To reduce the possibility of downloading
an incomplete file, users are encouraged to download the file no 
earlier than 10 minutes past the top of the hour.

NWS EMWIN FTP File Server:  
    https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/OPS/

2.  Actions are underway to isolate and resolve these issues.
A notification will be released as these issues are resolved.

3.  Questions or comments on this Bulletin may be addressed
to:  nws.emwin.support@noaa.gov 

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. The url is listed below.

https://w2.weather.gov/datamgmt/notices

Data Management
NCO Production Management Branch College Park MD
GISC/RTH Washington Sends
NNNN

Effective 2019/11/25

2019/12/02 17Z
DM11-19.01 Legacy EMWIN Service Termination effective December 2, 2019

NOXX10 KWBC 251410
Data Management Message 11-19.01

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: Legacy EMWIN Service Termination effective
 December 2, 2019

Legacy EMWIN customers are reminded that the NWS Legacy EMWIN
services will terminate effective 1700-UTC, December 2, 2019.
The individual services include:

-EMWIN Satellite Broadcast Service (1692.7 MHz, GOES-14/15)
-EMWIN File Transfer Protocol (FTP) archive file server
-EMWIN ByteBlaster and HostMaster public Internet dissemination
services at NWS Headquarters

Please refer to Service Change Notice (SCN) 19-88 for additional
information:

https://www.weather.gov/media/notification/scn19-
88emwin_serv_end.pdf

Questions or comments on this Bulletin may be addressed to:
nws.emwin.support@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

https://w2.weather.gov/datamgmt/notices

Data Management
NCO Production Management Branch College Park MD
GISC/RTH Washington Sends
NNNN

Effective 2019/10/24

NOUS41 KWBC 241515 
PNSWSH

Service Change Notice 19-88
National Weather Service Headquarters Silver Spring, MD 
1115 AM EDT Thu Oct 24 2019 

To:	   Subscribers:           
-NOAA Weather Wire Service          
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees

From:    Michelle Mainelli
Director, Office of Dissemination        

Subject:  Legacy EMWIN Service Termination effective
  December 2, 2019

The NWS Legacy EMWIN services will terminate effective 1700Z  
December 2, 2019.  The individual services include:

-EMWIN Satellite Broadcast Service (1692.7 MHz, GOES-14/15)
-EMWIN File Transfer Protocol (FTP) archive file server
-EMWIN ByteBlaster and HostMaster public Internet dissemination
services at NWS Headquarters

On August 29, 2019, the NWS follow-on enterprise EMWIN
(eEMWIN)services were placed into operations following the
release of a public notification issued on August 29, 2019, via
Service Change Notice:
https://www.weather.gov/media/notification/scn19-53emwin_goesaab.pdf 
The new eEMWIN services consist of:

-eEMWIN satellite broadcast service on the NESDIS GOES-East and
GOES-West HRIT/EMWIN Broadcast (1694.1 MHz, GOES-16/17)
-eEMWIN anonymous FTP archive file server 

NWS will provide more than 90 days of parallel operations of the
legacy EMWIN services and the updated eEMWIN services before
terminating the legacy EMWIN services on December 2, 2019. This
overlap should provide users the opportunity to acquire,
install, operate and transition to the new HRIT/EMWIN receiving
system and software, with minimal impact to current operations.

The following NWS Internet-based resources are available for
acquiring the products provided by Legacy EMWIN ByteBlaster.

a. NOAA Weather Wire Service (NWWS) Operational Interface (OI):
public Internet file push service.  The reference web page for
account registration is:
https://www.weather.gov/nwws/ 

b. eEMWIN File Transfer Protocol (FTP) Bulletin Archive: public
Internet file pull service
https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/OPS/ 


c. Global Telecommunication Service (GTS) Internet File Service
(GIFS): public Internet file pull service: 
https://ra4-gifs.weather.gov/data/RMTN/ 

d. EMWIN binary products may be downloaded directly from the 
public web pages accessed by EMWIN, which are documented in the
"EMWIN Image and Text Data Capture Catalog," listed here: 
https://www.weather.gov/emwin/#documents 

Questions or comments on the alternative services may be
addressed to NWS EMWIN Support:
nws.emwin.support@noaa.gov 

Additional information on the new eEMWIN services can be found on
Documents tab on the NWS EMWIN web page: 
https://www.weather.gov/emwin/#documents

Questions or comments on the information contained in this  bulletin may be addressed to:
nws.emwin.support@noaa.gov   

National Service Change Notices are online at: 
https://www.weather.gov/notification/ 

NNNN

Effective 2019/10/16

NOXX10 KWBC 151902

NOXX10/KWBC/101831

Data Management Message 10-19.01

To: GEONETCast Americas (GNC-A) Customers

From: GISC/RTH Washington Data Management

Subject: GNC-A Service Interruption Commencing 1200 UTC, October 16,
2019

A planned upgrade of the NESDIS GNC-A uplink station equipment is
scheduled to commence at 1200 UTC, October 16, 2019, and will last
approximately 30 minutes.  A GNC-A service interruption of 10 minutes is expected
during this maintenance period.

Date/Time of Initial Impact:  October 16, 2019 1200-UTC (8:00am ET)

Date/Time of Expected End:  October 16, 2019 1230-UTC (8:30am ET)

Length of Disruption: 10 minutes

Information contained in this bulletin is posted on

https://www.weather.gov/iscs/

Questions or comments on this Bulletin may be addressed to: iscs.dm@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at iscs.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

https://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch College Park, MD
GISC/RTH Washington Sends

Effective 2019/10/1

NOXX10 KWBC 301000
Data Management Message 09-19.01

To: Emergency Managers Weather Information Network /EMWIN/ Customers

From: GISC/RTH Washington Data Management

Subject: Legacy EMWIN Service Disruption Commencing 1300 UTC October
1 2019

A planned repair and upgrade of NWS Network Services is scheduled to
commence at 1300 UTC, October 1 2019.. and will last approximately 
8 hours.  A service disruption of 30 to 60 minutes is expected 
during this maintenance period which may block services or prevent 
some products from appearing on Legacy EMWIN. 

The following Legacy EMWIN services may be impacted:
a.  GOES-14/15 EMWIN Satellite Broadcast
b.  ByteBlaster
c.  File Transfer Protocol /FTP/ File service.

Date/Time of Initial Impact:  October 1 2019 1300-UTC /9:00am ET/

Date/Time of Expected End:  October 1 2019 2100-UTC /5:00pm ET/

Length of Disruption: 1 Hour

Users relying on Legacy EMWIN services should utilize alternate 
NWS dissemination services such as the new NWS enterprise EMWIN 
/eEMWIN/ services or the NOAA Weather Wire Service /NWWS/.. to 
assure continuous receipt of timely weather and water warnings 
and alerts.. throughout this period.

If a Critical Weather Day is identified to take place during 
this maintenance event.. the event may be rescheduled.

Information contained in this bulletin is posted on

https://www.nws.noaa.gov/emwin/index.html#notices

https://www.nws.noaa.gov/iscs/index.html

Questions or comments on this Bulletin may be addressed to:
nws.emwin.support@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

http://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch College Park
GISC/RTH Washington Sends
NNNN 

Effective 08/28/2019

NOUS41 KWBC 271740 AAB
            
PNSWSH

Service Change Notice 19-53 Updated
National Weather Service Headquarters Silver Spring, MD
140 PM EDT Tue Aug 27 2019

To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees
From: Ben Kyger

Director, NCEP Central Operations
Subject: Updated: Enterprise EMWIN Service Transition to
Operations for GOES-East and GOES-West Satellite
Broadcasts Effective: August 29, 2019
Updated to reflect the effective date of the eEMWIN services
becoming operational from TBD to August 29, 2019. Users will be
notified via a different SCN for information relating to the
discontinuation date of the legacy EMWIN services through GOES-
14 and GOES-15.

Effective on or about August 29, 2019, the NWS enterprise
Emergency Managers Weather Information Network (eEMWIN) service
is scheduled to transition to an operational NCEP Central
Operations Integrated Dissemination Program (IDP) platform. The
IDP eEMWIN dissemination service operates through a public
facing NWS web dervice and over the National Environmental
Satellite, Data, and Information Service (NESDIS) Geostationary
Operational Environmental Satellite R (GOES-R) Series
satellites. The present operational GOES-R Series satellites are:
GOES-East (GOES-16) at 75.2 degrees West longitude
GOES-West (GOES-17) at 137.2 degrees West longitude
HRIT-EMWIN SERVICE PHASE-IN

The NWS eEMWIN HRIT-EMWIN broadcast and data hosted on the
public facing NWS web service will be supported operationally.
Users transitioning to the High Rate Information Transmission
(HRIT) EMWIN broadcast service will require an HRIT-EMWIN
receiving station. HRIT-EMWIN system requirements and user
information are available from NESDIS. Some information on HRIT-
EMWIN receiving station equipment available for purchase is
provided on the NWS EMWIN Web Services:

https://www.nws.noaa.gov/emwin/#hrit-emwin

The NWS does not endorse or recommend any products or services
appearing on this website.

The assigned EMWIN Virtual Channel Identifiers (VCID) on the
broadcast are:

VCID-20: Priority 1 and 2 text products (see note 1 and 2)
VCID-21: Image products (see note 1 and 3)
VCID-22: Priority 3 and 4 text products (see note 1 and 2)

Notes:
1. The products on the GOES-16/17 HRIT-EMWIN broadcast should
not be used for operational purposes before the effective date.

2. Text product information is available in the "EMWIN Text
Product Catalog" on the following web site:
https://www.nws.noaa.gov/emwin/#documents

3. Image product information is available in the "EMWIN Image
and Text Data Capture Catalog"

https://www.nws.noaa.gov/emwin/#documents

The NWS web services hosting HRIT-EMWIN satellite broadcast
products for download are available here:

https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/
ftp://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/

- By the effective date, the products will begin populating the
"OPS" directory.
- During the 30-day evaluation period, the products will be
available in the "QA" directory.

The products on the eEMWIN Web Service should not be used for
operational purposes before the eEMWIN services effective date.
Further information on the eEMWIN web service is available in
the "eEMWIN FTP Service Description Document" at:
https://www.nws.noaa.gov/emwin/#documents
User wishing to provide comments on the product and services
during the 30-day evaluation period, please contact:

Carissa Klemmer
NCEP Central Operations
idp-support@noaa.gov
carissa.l.klemmer@noaa.gov
and
Robert Gillespie
nws.emwin.support@noaa.gov

Questions on the information contained in this bulletin may be
addressed to:
 nws.emwin.support@noaa.gov

National Service Change Notices are online at:
https://www.weather.gov/notification/

NNNN

Effective 2019/07/24

NOUS41 KWBC 111710 AAA
PNSWSH

Service Change Notice 19-53 Updated
National Weather Service Headquarters Silver Spring, MD
110 PM EDT Thu Jul 11 2019

To:       Subscribers:
 -NOAA Weather Wire Service
 -Emergency Managers Weather Information Network
 -NOAAPORT
  Other NWS partners and NWS employees

From:     Ben Kyger
  Director, NCEP Central Operations

Subject: Updated: Enterprise EMWIN Service Transition to
 Operations for GOES-East and GOES-West Satellite
 Broadcasts Effective on a date to be determined (TBD)

Updated to reflect the effective date of the eEMWIN services
becoming operational from July 24, 2019 to TBD; an updated SCN
will be issue when a new date is set.

Effective on a date to be determined, the NWS enterprise
Emergency Managers Weather Information Network (eEMWIN) service
is scheduled to transition to an operational NCEP Central
Operations Integrated Dissemination Program (IDP) platform. The
eEMWIN dissemination service operates through a public facing
NWS web service and over the National Environmental Satellite,
Data, and Information Service (NESDIS) Geostationary Operational
Environmental Satellite R (GOES-R) Series satellites. The
present operational GOES-R Series satellites are:

GOES-East (GOES-16) at 75.2 degrees West longitude
GOES-West (GOES-17) at 137.2 degrees West longitude

HRIT-EMWIN SERVICE PHASE-IN

On July 30, 2019, the NWS eEMWIN service enters a 30-day system
stability evaluation period. On a date to be determined, after
a successful evaluation period, the NWS eEMWIN HRIT-EMWIN
broadcast and public facing NWS web service will be operational.

Users transitioning to the High Rate Information Transmission
(HRIT) EMWIN broadcast service will require an HRIT-EMWIN
receiving station. HRIT-EMWIN system requirements and user
information are available from NESDIS. Some information on 
HRITEMWIN receiving station equipment available for purchase is
provided on the NWS EMWIN Web Services:

https://www.nws.noaa.gov/emwin/#hrit-emwin

The NWS does not endorse or recommend any products or services
appearing on this website.

The assigned EMWIN Virtual Channel Identifiers (VCIDs) on the
broadcast are:

VCID-20 - Priority 1 and 2 text products (see note 1 and 2)
VCID-21 - Image products (see note 1 and 3)
VCID-22 - Priority 3 and 4 text products (see note 1 and 2)

Notes:
1. The products on the GOES-16/17 HRIT-EMWIN broadcast should
not be used for operational purposes prior to the effective date.
2. Text product information is available in the EMWIN Text
Product Catalog on the following web site:

https://www.nws.noaa.gov/emwin/#documents

3. Image product information is available in the EMWIN Image and
Text Data Capture Catalog on the following web site:

https://www.nws.noaa.gov/emwin/#documents

The NWS Web Services hosting HRIT-EMWIN satellite broadcast
products for download are available here:

https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/
ftp://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/

- By the effective date, the products will begin populating
the OPS directory.
- During the 30-day evaluation period, the products will be
available in the QA directory.

The products on the eEMWIN Web Service should not be used for
operational purposes prior to the eEMWIN Services effective
date. Further information on the eEMWIN Web Service is
available in the eEMWIN FTP Service Description Document on the
following web site:

https://www.nws.noaa.gov/emwin/#documents

User wishing to provide comments on the product and services
during the 30-day evaluation period, please contact:

Carissa Klemmer
NCEP Central Operations
idp-support@noaa.gov
carissa.l.klemmer@noaa.gov
and
Robert Gillespie
nws.emwin.support@noaa.gov

Questions on the information contained in this bulletin may be
addressed to:

nws.emwin.support@noaa.gov

National Service Change Notices are online at:

https://www.weather.gov/notification/

NNNN

Effective 2019/07/23

NOXX10 KWBC 251610
DM06-19.03 Enterprise EMWIN Service Transition to Operations for
GOES-East and GOES-West Satellite Broadcasts Effective: July 24, 2019 

NOUS41/KWBC/251600
PNSWSH

Service Change Notice 19-53
National Weather Service Headquarters Silver Spring, MD
1200 PM EDT Tue Jun 25 2019

To:       Subscribers:
  -NOAA Weather Wire Service
  -Emergency Managers Weather Information Network
  -NOAAPORT
   Other NWS partners and NWS employees
   
From:	   Ben Kyger
   Director, NCEP Central Operations
   
Subject:   Enterprise EMWIN Service Transition to Operations 
   for GOES-East and GOES-West Satellite Broadcasts
   Effective: July 24, 2019

Effective on or about July 24, 2019, the National Weather Service
(NWS) enterprise Emergency Managers Weather Information Network
(eEMWIN) service is scheduled to transition to an operational
NCEP Central Operations Integrated Dissemination Program (IDP)
platform.  The eEMWIN dissemination service operates through a
public facing NWS Web Service and over the National Environmental
Satellite, Data, and Information Service (NESDIS) Geostationary
Operational Environmental Satellite R (GOES-R) Series satellites.
The present operational GOES-R Series satellites are:

GOES-East (GOES-16) at 75.2 degrees West longitude
GOES-West (GOES-17) at 137.2 degrees West longitude

HRIT-EMWIN SERVICE PHASE-IN

On June 20, 2019, the NWS eEMWIN Service entered a 30-day system
stability evaluation period.  On or about the effective date above,
after a successful evaluation period, the NWS eEMWIN HRIT-EMWIN
broadcast and public facing NWS Web Service will be declared
operational.

Users transitioning to the High Rate Information Transmission
(HRIT) EMWIN broadcast service will require an HRIT-EMWIN receiving
station.  HRIT-EMWIN system requirements and user information are
available from NESDIS. Some information on HRIT-EMWIN receiving
station equipment available for purchase is provided on the NWS
EMWIN Web Services:

https://www.nws.noaa.gov/emwin/#hrit-emwin

The NWS does not endorse or recommend any products or services
appearing on this website.

The assigned EMWIN Virtual Channel Identifiers (VCIDs) on the
broadcast are:

VCID-20 - Priority 1 and 2 text products (see note 1 and 2)
VCID-21 - Image products (see note 1 and 3)
VCID-22 - Priority 3 and 4 text products (see note 1 and 2)

Notes:
1 – The products on the GOES-16/17 HRIT-EMWIN broadcast should not
be used for operational purposes prior to the eEMWIN Service being
declared operational by the NWS.
2 – Text product information is available in the "EMWIN Text Product
Catalog" on the following web site:

https://www.nws.noaa.gov/emwin/#documents

3 – Image product information is available in the "EMWIN Image and
Text Data Capture Catalog" on the following web site:
https://www.nws.noaa.gov/emwin/#documents 

The NWS Web Services hosting HRIT-EMWIN satellite broadcast products
for download are available here: 

https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/
ftp://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/ 

- On the effective date, the products will begin populating the
"OPS" directory. 
- During the 30-day evaluation period, the products will be 
available in the "QA" directory.

The products on the eEMWIN Web Service should not be used for
operational purposes prior to the eEMWIN service being declared
operational by the NWS.  Further information on the eEMWIN Web
Service is available in the "eEMWIN FTP Service Description
Document" on the following web site:

https://www.nws.noaa.gov/emwin/#documents  

User wishing to provide comments on the product and services during
the 30-day evaluation period, please contact: 

Carissa Klemmer
NCEP Central Operations
idp-support@noaa.gov
carissa.l.klemmer@noaa.gov 
and
Robert Gillespie
nws.emwin.support@noaa.gov 

Questions on the information contained in this bulletin may be
addressed to: 
nws.emwin.support@noaa.gov  

National Service Change Notices are online at:

https://www.weather.gov/notification/ 

NNNN
            

Effective 2019/07/11

Updated: Enterprise EMWIN Service Transition to Operations for GOES-East and GOES-West Satellite Broadcasts Effective on a date to be determined (TBD)

NOUS41 KWBC 111710 AAA PNSWSH 
Service Change Notice 19-53 Updated National Weather Service Headquarters Silver Spring, MD 110 PM EDT Thu Jul 11 2019

To:       Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees
  
From:     Ben Kyger
   Director, NCEP Central Operations 

Subject:  Updated: Enterprise EMWIN Service Transition to 
   Operations for GOES-East and GOES-West Satellite
Broadcasts Effective on a date to be determined (TBD)

Updated to reflect the effective date of the eEMWIN services 
becoming operational from July 24, 2019 to TBD; an updated SCN 
will be issue when a new date is set.  

Effective on a date to be determined, the NWS enterprise 
Emergency Managers Weather Information Network (eEMWIN) service 
is scheduled to transition to an operational NCEP Central 
Operations Integrated Dissemination Program (IDP) platform. 
The eEMWIN dissemination service operates through a public facing 
NWS web service and over the National Environmental Satellite, 
Data, and Information Service (NESDIS) Geostationary Operational 
Environmental Satellite R (GOES-R) Series satellites. The  
present operational GOES-R Series satellites are

GOES-East (GOES-16) at 75.2 degrees West longitude
GOES-West (GOES-17) at 137.2 degrees West longitude

HRIT-EMWIN SERVICE PHASE-IN

On July 30, 2019, the NWS eEMWIN service enters a 30-day system 
stability evaluation period.  On a date to be determined, after 
a successful evaluation period, the NWS eEMWIN HRIT-EMWIN 
broadcast and public facing NWS web service will be operational. 

Users transitioning to the High Rate Information Transmission 
(HRIT) EMWIN broadcast service will require an HRIT-EMWIN 
receiving station. HRIT-EMWIN system requirements and user 
information are available from NESDIS. Some information on HRIT-
EMWIN receiving station equipment available for purchase is  provided
on the NWS EMWIN Web Services:

https://www.nws.noaa.gov/emwin/#hrit-emwin 

The NWS does not endorse or recommend any products or services 
appearing on this website.

The assigned EMWIN Virtual Channel Identifiers (VCIDs) on the 
broadcast are:

VCID-20 Priority 1 and 2 text products (see note 1 and 2)
VCID-21 Image products (see note 1 and 3)
VCID-22 Priority 3 and 4 text products (see note 1 and 2)

Notes: 
1. The products on the GOES-16/17 HRIT-EMWIN broadcast should  
not be used for operational purposes prior to the effective date. 
2. Text product information is available in the EMWIN Text  
Product Catalog on the following web site:   
https://www.nws.noaa.gov/emwin/#documents

3. Image product information is available in the EMWIN Image and  
Text Data Capture Catalog on the following web site:  
https://www.nws.noaa.gov/emwin/#documents

The NWS Web Services hosting HRIT-EMWIN satellite broadcast  
products for download are available here: 

https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/
ftp://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/


- By the effective date, the products will begin populating  the OPS directory.
- During the 30-day evaluation period, the products will be  
available in the QA directory. 

The products on the eEMWIN Web Service should not be used for  
operational purposes prior to the eEMWIN Services effective  date.  
Further information on the eEMWIN Web Service is available in the 
eEMWIN FTP Service Description Document on the  following web site: 

https://www.nws.noaa.gov/emwin/#documents 

User wishing to provide comments on the product and services  
during the 30-day evaluation period, please contact: 

Carissa Klemmer
NCEP Central Operations
idp-support@noaa.gov
carissa.l.klemmer@noaa.gov 
and Robert Gillespie
nws.emwin.support@noaa.gov

Questions on the information contained in this bulletin may be
addressed to: 

nws.emwin.support@noaa.gov  

National Service Change Notices are online at:

https://www.weather.gov/notification/

NNNN

DM06-19.03 Enterprise EMWIN Service Transition to Operations for GOES-East and GOES-West Satellite Broadcasts Effective: July 24, 2019

NOXX10 KWBC 251610
DM06-19.03 Enterprise EMWIN Service Transition to Operations for
GOES-East and GOES-West Satellite Broadcasts Effective: July 24, 2019 

NOUS41/KWBC/251600
PNSWSH

Service Change Notice 19-53
National Weather Service Headquarters Silver Spring, MD
1200 PM EDT Tue Jun 25 2019

To:       Subscribers:
  -NOAA Weather Wire Service
  -Emergency Managers Weather Information Network
  -NOAAPORT
  Other NWS partners and NWS employees

From:	Ben Kyger
  Director, NCEP Central Operations

Subject:  Enterprise EMWIN Service Transition to Operations 
  for GOES-East and GOES-West Satellite Broadcasts
  Effective: July 24, 2019

Effective on or about July 24, 2019, the National Weather Service
(NWS) enterprise Emergency Managers Weather Information Network
(eEMWIN) service is scheduled to transition to an operational
NCEP Central Operations Integrated Dissemination Program (IDP)
platform.  The eEMWIN dissemination service operates through a
public facing NWS Web Service and over the National Environmental
Satellite, Data, and Information Service (NESDIS) Geostationary
Operational Environmental Satellite R (GOES-R) Series satellites.
The present operational GOES-R Series satellites are:

GOES-East (GOES-16) at 75.2 degrees West longitude
GOES-West (GOES-17) at 137.2 degrees West longitude

HRIT-EMWIN SERVICE PHASE-IN

On June 20, 2019, the NWS eEMWIN Service entered a 30-day system
stability evaluation period.  On or about the effective date above,
after a successful evaluation period, the NWS eEMWIN HRIT-EMWIN
broadcast and public facing NWS Web Service will be declared
operational.

Users transitioning to the High Rate Information Transmission
(HRIT) EMWIN broadcast service will require an HRIT-EMWIN receiving
station.  HRIT-EMWIN system requirements and user information are
available from NESDIS. Some information on HRIT-EMWIN receiving
station equipment available for purchase is provided on the NWS
EMWIN Web Services:
https://www.nws.noaa.gov/emwin/#hrit-emwin  
The NWS does not endorse or recommend any products or services
appearing on this website.

The assigned EMWIN Virtual Channel Identifiers (VCIDs) on the
broadcast are:

VCID-20 – Priority 1 and 2 text products (see note 1 and 2)
VCID-21 – Image products (see note 1 and 3)
VCID-22 – Priority 3 and 4 text products (see note 1 and 2)

Notes:
1 – The products on the GOES-16/17 HRIT-EMWIN broadcast should not
be used for operational purposes prior to the eEMWIN Service being
declared operational by the NWS.
2 – Text product information is available in the “EMWIN Text Product
Catalog” on the following web site:
https://www.nws.noaa.gov/emwin/#documents 
3 – Image product information is available in the “EMWIN Image and
Text Data Capture Catalog” on the following web site:
https://www.nws.noaa.gov/emwin/#documents 

The NWS Web Services hosting HRIT-EMWIN satellite broadcast products
for download are available here: 
https://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/ 
ftp://tgftp.nws.noaa.gov/SL.us008001/CU.EMWIN/DF.xt/DC.gsatR/ 
- On the effective date, the products will begin populating the
“OPS” directory. 
- During the 30-day evaluation period, the products will be 
available in the “QA” directory.

The products on the eEMWIN Web Service should not be used for
operational purposes prior to the eEMWIN service being declared
operational by the NWS.  Further information on the eEMWIN Web
Service is available in the “eEMWIN FTP Service Description
Document” on the following web site:
https://www.nws.noaa.gov/emwin/#documents  

User wishing to provide comments on the product and services during
the 30-day evaluation period, please contact: 

Carissa Klemmer
NCEP Central Operations
idp-support@noaa.gov
carissa.l.klemmer@noaa.gov 
and
Robert Gillespie
nws.emwin.support@noaa.gov 

Questions on the information contained in this bulletin may be
addressed to: 
nws.emwin.support@noaa.gov  

National Service Change Notices are online at:

https://www.weather.gov/notification/ 

NNNN

DM05-19.03 EMWIN ByteBlaster and FTP File Server Disruption Commencing 2200 UTC, May 30, 2019
Effective: 2019/05/30 22Z UTC

NOXX10 KWBC 292022
Data Management Message 05-19­.03

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: EMWIN ByteBlaster and FTP File Server Disruption Commencing
2200 UTC, May 30, 2019

A planned upgrade of EMWIN Network Services is scheduled to commence
at 2200 UTC, May 30, 2019, and will last approximately 2 hours.

The EMWIN ByteBlaster and File Transfer Protocol (FTP) File services
may experience an interruption of service during this period.  The 
EMWIN satellite broadcast should not be impacted.

Date/Time of Initial Impact:May 30, 2019 / 2200 UTC

Date/Time of Expected End:May 31, 2019 / 0000 UTC

Length of Outage: 2 Hours

Users relying of the EMWIN ByteBlaster and FTP services should
utilize alternate NWS dissemination servic

[e.g., NOAA Weather Wire Service (NWWS)] for continuous receipt of
timely weather and water warnings and alerts throughout this period.

If a Critical Weather Day is identified to take place during this
maintenance event, the event will be rescheduled for June 4, 2019.

Information contained in this bulletin is posted on

https://www.nws.noaa.gov/emwin/index.html#notices

https://www.nws.noaa.gov/iscs/index.html

Questions or comments on this Bulletin may be addressed to:
nws.emwin.support@noaa.gov

Data Management
NCO Production Management Branch
GISC/RTH Washington Sends 

Changes to NWS Dissemination Webpage URLs effective October 31, 2019

NOUS41 KWBC 251205
PNSWSH
Service Change Notice 19-33
National Weather Service Headquarters Silver Spring MD
905 AM EDT Thu Apr 25 2019

From: Michelle Mainelli, Director
Office of Dissemination

Subject: Changes to NWS Dissemination Webpage URLs effective
October 31, 2019

On or about Thursday, October 31, 2019, at 800 AM Central
Daylight Time (CDT), 1300 Coordinated Universal Time (UTC), the
NWS will change public facing dissemination system webpage URL
base address locations; migrating from
https://www.nws.noaa.gov
to
https://www.weather.gov

After this change, all the affected dissemination system webpage
links currently re-directed to the new locations will cease to
function. Thereafter, users will see a 404 error when attempting
to access the old URL base address for each respective
dissemination system.

The affected dissemination system URLs include:
https://www.nws.noaa.gov/nwr
https://www.nws.noaa.gov/nwws
https://www.nws.noaa.gov/emwin
https://www.nws.noaa.gov/iscs
and all subordinate webpage URLs.

All NWS partners and users will need to make necessary changes
to saved URLs.

Updated alerts and warnings remain online at:
https://www.weather.gov
https://alerts.weather.gov

For more information, please contact:
Gregory Zwicker
Program Manager
NWS Office of Dissemination
Dissemination Systems Branch
Silver Spring, Maryland
gregory.zwicker@noaa.gov

National Service Change Notices are online at:
https://www.weather.gov/notification/
NNNN
 

Effective 2018/10/23

NOXX10 KWBC 201410

Data Management Message 10-18.02

To: Emergency Managers Weather Information Network (EMWIN)
Customers
From: GISC/RTH Washington Data Management

Subject: GOES-15 (GOES-West) Satellite Drift to 128-degrees West
Commencing 2015 UTC, October 23, 2018

The GOES-West satellite transition from GOES-15 to GOES-17 is
scheduled to commence at 2015 UTC, October 23, 2018, with the drift
of GOES-15 from 135 to 128-degrees west. The transition is scheduled
to be completed on December 10, 2018, with GOES-17 declared as the
operational GOES-West satellite.

The GOES-15 EMWIN transponder will remain operational throughout the
0.88-degree/day drift to 128-degrees west. Receiving stations with
fixed antenna installations are likely to experience degradation or
loss of signal lock should the satellite move outside the receiving
antenna's effective beam width. Users should consider incrementally
re-orienting their antennas to maintain an effective signal-to-noise
ratio and signal lock during the GOES-15 drift.

The schedule of events for GOES-15 and GOES-17 is provided below.
Additional details are available from the NESDIS web site:
https://www.goes-r.gov/users/transitionToOperations17.html

The simultaneous operations of the EMWIN broadcast on
GOES-14(105W) and GOES-15(128W); and the HRIT/EMIWN broadcast on
GOES-16(75.2W) and GOES-17(137.1W) is scheduled to remain in
effect through May 2019.

The close proximity of broadcast frequencies and geosynchronous
orbits of the GOES-15 and GOES-17 satellites may cause EMWIN-15
users to experience interference from GOES-17. Users are
encouraged to make further adjustments in their antenna
orientation to reduce interference issues.

EMWIN virtual channels 20, 21 and 22 on the GOES-16 and 17
HRIT/EMWIN broadcasts will not be operational until 2019.
Users are reminded to use products on the GOES-14 and 15 EMWIN
satellite broadcasts for operations, and to refrain from using
products appearing on channels 20, 21 and 22 in the GOES-16
and 17 HRIT/EMWIN broadcast until declared operational by the NWS.

Questions or comments may be directed to:
NWS EMWIN Support at nws.emwin.support@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. The url is listed below.

http://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch College Park
GISC/RTH Washington Sends
NNNN

Effective 2018/10/01

NOXX10 KWBC 011855

Data Management Message 10-18.01

To: Emergency Managers Weather Information Network (EMWIN) Customers

From: GISC/RTH Washington Data Management

Subject: GOES-13/14/15/16 Fall 2018 Solar RFI

NESDIS has provided the following information concerning the
potential for outages of the GOES data stream, including EMWIN.

The potential for solar radio frequency interference (RFI) with a
satellite downlink circuit will occur whenever the Sun passes into
the beam of the ground station receiving antenna. The Wallops and
Fairbanks Command and Data Acquisition Stations (CDAs) and
Environmental Satellite Processing Center (ESPC) receiving antennas
may experience periods of Solar RFI as predicted below. Solar RFI
can cause loss of telemetry lock and command capability.

Solar RFI Predicted Times and Impacts for Fall 2018:

SPACECRAFT //
DATE TIME(UTC) STATION OP-IMPACT
-------------------------------------------------------------
GOES-13 //
04 OCT-11 OCT 1532-1544 WALLOPS SD,GVAR,T&C,EMWIN,LRIT,
05 OCT-12 OCT 1638-1649 SUITLAND WEFAX,DCS,DCPR,SAR,MDL
GOES-14 //
05 OCT-12 OCT 1854-1906 WALLOPS T&C,EMWIN,MDL
05 OCT-12 OCT 1853-1905 SUITLAND
GOES-15 //
04 OCT–11 OCT 2111-2122 WALLOPS SD,GVAR,T&C,EMWIN,LRIT,
04 OCT–11 OCT 2111-2122 SUITLAND WEFAX,DCS,DCPR,SAR,MDL
11 OCT–18 OCT 2042-2054 FAIRBANKS
GOES-16 //
04 OCT–11 OCT 1644-1656 WALLOPS RDL,GRB,T&C,HRIT/EMWIN,
05 OCT–12 OCT 1643-1655 SUITLAND DCPC,SAR
05 OCT–12 OCT 1641-1653 FAIRMONT

Source: Direct Broadcast Manager, NOAA/NESDIS/OSPO/SPSD

Questions or comments may be directed to:
nws.emwin.support@noaa.gov

Data Management
NCO Production Management Branch Silver Spring
GISC/RTH Washington Sends
NNNN

Effective 2018/06/08

NOUS41 KWBC 081437 AAA
PNSWSH

Service Change Notice 17-120 Updated
National Weather Service Headquarters Silver Spring, MD
1037 AM EDT Fri Jun 8 2018

To: Subscribers:

-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees

From: Craig Hodan
Chief, NWS Dissemination Systems Team

Subject: Updated: GOES-14 Emergency Managers Weather
Information Network Broadcast Available on or
before December 11, 2017

Updated to change the duration of the GOES-14 EMWIN Broadcast
from 6 to 12 months and the GOES-14 EMWIN Broadcast terminate
date from on or about June 13, 2018, to on or about November 15,
2018.

On or before December 11, 2017, the Emergency Managers Weather
Information Network (EMWIN) broadcast from GOES 14 was activated
and will remain active for 12 months. The broadcast from GOES-14
provides GOES-East users an additional opportunity to continue
to use their existing EMWIN satellite receivers and software
while making preparations for transitioning to the new
HRIT/EMWIN broadcast.

Service Change Notice 17-91 of July 28, 2017, provided
information on the transition from GOES-13 to GOES-16:
http://www.nws.noaa.gov/os/notification/scn17-91emwin_goes.htm

GOES-14 is expected to remain in its present geosynchronous
orbit at 105 degrees West throughout this service period.

Below are the GOES-14 EMWIN broadcast characteristics:
Frequency: 1692.7 MHz, linear polarization
Modulation: PCM/NRZ-L/Offset QPSK
Data rate: 35940 ksps, 19200 bps CCSDS coding
Data format: EMWIN Quick Block Transfer (QBT) packets

The GOES-14 EMWIN Broadcast will terminate on or about November
15, 2018. Before the broadcast ends, users should employ the new
HRIT/EMWIN antennas, receivers and software to receive the EMWIN
broadcast on HRIT/EMWIN Virtual Channels 20, 21, and 22, from
the GOES-East satellite located at 75.2 degrees West.

For more information, please contact:
nws.emwin.support@noaa.gov

National Service Change Notices are online at:
http://www.nws.noaa.gov/om/notif.htm

NNNN

Effective 2018/04/07

DM04-18.02 EMWIN Service Disruption Commencing 0900 UTC, April 7, 2018
Effective: 2018/04/05 0900Z UTC

NOXX10 KWBC 051618
Data Management Message 04-18.02

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: EMWIN Service Disruption Commencing 0900 UTC,
April 7, 2018

The US National Weather Service (NWS) Headquarters will perform
urgent maintenance on electrical systems supporting the Emergency
Managers Weather Information Network (EMWIN) services commencing
0900 UTC, April 7, 2018.

Expected EMWIN service impacts:

A. FTP server - loss of service.
B. ByteBlaster servers - negligible impact.
C. GOES 14 or 15 EMWIN satellite broadcast - no impact.
D. GOES-16 HRIT-EMWIN satellite broadcast - no impact.

Date/Time of Initial Impact: April 7, 2018 0900 UTC

Date/Time of Expected End: April 9, 2018 1300 UTC

The EMWIN service disruption can be expected to last as long as
52 hours. Full service may be restored sooner. Should users
experience any additional service issues or problems, please
notify the NWS EMWIN Support at:

nws.emwin.support@noaa.gov

A 'Critical Weather Day' will not postpone this maintenance
activity.

Information contained in this bulletin is posted on
http://www.nws.noaa.gov/emwin/index.html#notices
http://www.nws.noaa.gov/iscs/index.html

Further information is available from:
NWS EMWIN Support at nws.emwin.support@noaa.gov

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

http://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch College Park
GISC/RTH Washington Sends
NNNN

Effective 2018/04/02

NOXX10 KWBC 021030
Data Management Message 04-18.01

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: GOES-14/15 EMWIN Satellite Broadcast Disruption Commencing
1200 UTC, April 3, 2018

The NOAA Wallops Command & Data Acquisition Station (WCDAS), which
provides the EMWIN data uplink service to the GOES-14 and 15
satellites, will undergo a planned 48 to 60 hour facility power
outage commencing 1200 UTC, April 3, 2018.

Date/Time of Initial Impact: April 3, 2018 1200 UTC

** NOTE: The EMWIN satellite broadcast outage may commence any time after April 2, 2018 2045 UTC **

Date/Time of Expected End: April 5, 2018 2359 UTC

Length of Outage: 48 to 60 Hours

The outage is required to perform maintenance and repairs on the
station's electrical power system. The power outage can be
expected to last as long as three days, although the goal is to
complete the work within two days.

It is likely there will be an outage of the 1692.7 MHz Emergency
Managers Weather Information Network (EMWIN) broadcast for the
duration that WCDAS is down for both GOES-14 and 15. If there is
an outage, users are asked to utilize GOES-15's LRIT broadcast,
the NWS FTP or ByteBlaster services for EMWIN continuity of
operations.

If a 'Critical Weather Day' is identified to take place during this
maintenance event, the event will be rescheduled for April 10, 2018.
http://www.nco.ncep.noaa.gov/pmb/cwd/

Information contained in this bulletin is posted on
http://www.nws.noaa.gov/emwin/index.html#notices
http://www.nws.noaa.gov/iscs/index.html

Further information is available from:
ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880
NWS EMWIN Support at nws.emwin.support@noaa.gov

Data Management
NCO Production Management Branch College Park
GISC/RTH Washington Sends
NNNN

Effective 2018/03/26

Topic: NOAA Wallops Command & Data Acquisition Station (WCDAS) Facility Power Outage

Date/Time Issued: March 26, 2018 2115 UTC
Product(s) or Data Impacted: All WCDAS data and other operational services
Date/Time of Initial Impact: April 3, 2018 1200 UTC
Date/Time of Expected End: April 5, 2018 2359 UTC
Length of Outage: 48 to 60 Hours

Details/Specifics of Change:

The NOAA Wallops Command and Data Acquisition Station (WCDAS) is planning an entire site power outage on Tuesday, April 3, 2018. The outage is required to perform maintenance and repairs on the station's electrical power system. The power outage can be expected to last as long as three days although the goal is to complete the work within two days.

It is likely there will be an outage of the 1692.7 MHz Emergency Managers Weather Information Network (EMWIN) broadcast for the duration that WCDAS is down for both GOES-14 and 15. If there is an outage, users are asked to utilize GOES-15's LRIT broadcast, the NWS FTP or ByteBlaster services for EMWIN continuity of operations. Additionally, there will not be any NOAA-18 and NOAA-19 HRPT data from WCDAS.

It is not anticipated that dissemination of other data to users will be impacted during this power outage. However, if unforeseen data outages occur, users will be notified as information becomes available.

If a 'Critical Weather Day' is declared, the event will be rescheduled for April 10, 2018.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

Effective 2018/03/01

NOXX10 KWBC 011830
Data Management Message 03-18.01

To: Emergency Managers Weather Information Network (EMWIN)
    Customers

From: GISC/RTH Washington Data Management

Subject: GOES-13/14/15/16 Spring 2018 Solar RFI

NESDIS has provided the following information concerning the
potential for outages of the GOES data stream, including EMWIN.

The potential for solar radio frequency interference (RFI) with a
satellite downlink circuit will occur whenever the Sun passes into
the beam of the ground station receiving antenna.  The Wallops and
Fairbanks Command and Data Acquisition Stations (CDAs) and
Environmental Satellite Processing Center (ESPC) receiving antennas
may experience periods of Solar RFI as predicted below. Solar RFI
can cause loss of telemetry lock and command capability.

Solar RFI Predicted Times and Impacts for Spring 2018:

SPACECRAFT //
   DATE           TIME(UTC)  STATION   OP-IMPACT
-------------------------------------------------------------
GOES-13 //
   02 MAR-09 MAR  1556-1608  WALLOPS   T&C
   02 MAR-09 MAR  1555-1607  SUITLAND
GOES-14 //
   01 MAR-08 MAR  1917-1929  WALLOPS   T&C,EMWIN,MDL
   01 MAR-08 MAR  1917-1929  SUITLAND
GOES-15 //
   02 MAR-09 MAR  2132-2144  WALLOPS   SD,GVAR,T&C,EMWIN,LRIT,
   02 MAR-09 MAR  2132-2143  SUITLAND  WEFAX,DCS,DCPR,SAR,MDL
   23 FEB-02 MAR  2106-2117  FAIRBANKS      
GOES-16 //
   01 MAR-08 MAR  1706-1718  WALLOPS   RDL,GRB,T&C,HRIT/EMWIN,
   01 MAR-08 MAR  1707-1719  SUITLAND  DCPC,SAR
   01 MAR-08 MAR  1705-1716  FAIRMONT

Source: http://www.ssd.noaa.gov/PS/SATS/MESS/MSG0591928.01.txt

Questions or comments may be directed to:
nws.emwin.support@noaa.gov

Data Management
NCO Production Management Branch Silver Spring
GISC/RTH Washington Sends
NNNN

Effective 2017/12/18

NOXX10 KWBC 091510
DATA MGT MESSAGE 12-17.02 COR

NOXX10/KWBC/181854
DATA MGT MESSAGE 12-17.01

T0: EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/
    NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS.

From: GISC/RTH WASHINGTON DATA MANAGEMENT

NOTICE TO ALL USERS OF EMWIN DISSEMINATION SERVICES:

Subject: Restricted Use of Products Received in EMWIN Virtual
         Channels on the GOES-16 HRIT/EMWIN Broadcast

All products received in EMWIN virtual channels (VCID) 20, 21 and 22,
on the GOES-16 HRIT/EMWIN broadcast should NOT be used for operational
purposes until specifically authorized by the NWS.

The NWS enterprise EMWIN software supporting the broadcast service is
scheduled to commence its 30-day acceptance test in January 2018.
Following successful test completion, the NWS will release an announcement
authorizing the use of all products in EMWIN VCIDs 20, 21 and 22 for
operational purposes.

Valid products are being sent by the enterprise EMWIN software over
the EMWIN virtual channels for pre-operational system verification
checks. Until the software enters the 30-day acceptance test, product
availability in the EMWIN virtual channels may periodically be interrupted.
This is to be expected and not cause for notifying the NWS. When in
receipt of products and product discrepancies are noted, users are
encouraged to notify the NWS of the discrepancies using the following
email address:
nws.emwin.support@noaa.gov

Notification of a product discrepancy should include either:

(a) a copy of the file containing the product with discrepancy, or,

(b) the identity of the product WMO header, AWIPS identifier (if present),
and the source of the product as either the HRIT/EMWIN satellite broadcast or
the EMWIN FTP File Server.

Questions or comments may be addressed to:
nws.emwin.support@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your data stream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

http://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch Silver Spring
GISC/RTH Washington Sends
NNNN

Effective 2017/11/22

NOUS41 KWBC 221350
PNSWSH

Service Change Notice 17-120
National Weather Service Headquarters Silver Spring, MD
150 PM EST Wed Nov 22 2017

To: Subscribers:
    -NOAA Weather Wire Service
    -Emergency Managers Weather Information Network
    -NOAAPORT
    Other NWS partners and NWS employees

From: Craig Hodan
      Chief, NWS Dissemination Systems Team

Subject: GOES-14 Emergency Managers Weather Information Network
Broadcast Available on or before December 11, 2017
On or before December 11, 2017, the Emergency Managers Weather
Information Network (EMWIN) broadcast from GOES 14 will be
activated and remain active for 6 months. The broadcast from
GOES-14 provides GOES-East users an additional opportunity to
continue to use their existing EMWIN satellite receivers and
software while making preparations for transitioning to the new
HRIT/EMWIN broadcast. The broadcast is scheduled to become
operational between December 14-20, 2017, when GOES-16 replaces
GOES-13 at the GOES-East station at 75.2 degrees West.
Service Change Notice 17-91 of July 28, 2017, provided
information on the transition from GOES-13 to GOES-16:
http://www.nws.noaa.gov/os/notification/scn17-91emwin_goes.htm

GOES-14 is expected to remain in its present geosynchronous
orbit at 105 degrees West throughout this service period.

Below are the GOES-14 EMWIN broadcast characteristics:

Frequency: 1692.7 MHz, linear polarization
Modulation: PCM/NRZ-L/Offset QPSK
Data rate: 35940 ksps, 19200 bps CCSDS coding
Data format: EMWIN Quick Block Transfer (QBT) packets

The GOES-14 EMWIN Broadcast will terminate on or about June 13,
2018. Before the broadcast ends, users should either reorient
their antennas to the GOES-15 (GOES-West) satellite at 135
degrees West to continue receiving the broadcast -- providing
the receiving stations is within the GOES-West satellite
footprint and has antenna direct line-of-sight to the satellite;
or (b) employ the new HRIT/EMWIN antennas, receivers and
software to receive the EMWIN broadcast on HRIT/EMWIN Virtual
Channels 20, 21, and 22, from the GOES-East satellite located at
75.2 degrees West.

The GOES-West satellite, GOES-15, is scheduled to be replaced by
GOES-S in the fall of 2018, introducing the HRIT/EMWIN broadcast
to GOES-West users and terminating the legacy EMWIN Offset QPSK
broadcast.

For more information, please contact:
nws.emwin.support@noaa.gov

National Service Change Notices are online at:
http://www.weather.gov/os/notif.htm

NNNN

Effective 2017/08/01

NOUS41 KWBC 011415
PNSWSH

Public Information Statement 17-28
National Weather Service Headquarters Silver Spring, MD
1020 AM EDT Tue Aug 1 2017

To: Subscribers:
    -NOAA Weather Wire Service
    -Emergency Managers Weather Information Network
    -NOAAPORT
    Other NWS partners and NWS employees

From: Craig Hodan
      Chief, Dissemination Systems Branch

Subject: Soliciting comments on the proposed transition of the

NWS EMWIN FTP service through September 15, 2017
The NWS is accepting comments until September 15, 2017, on the
proposed transition of the legacy Emergency Managers Weather
Information Network (EMWIN) File Transfer Protocol (FTP) service
to the NWS Integrated Dissemination Program (IDP) enterprise
environment.

The EMWIN FTP file service is transitioning to a new
consolidated enterprise infrastructure referred to as IDP. The
new EMWIN IDP FTP service is scheduled to be operational on
November 1, 2017. Users of the EMIWN legacy FTP service are
encouraged to transition to the new service prior to January 31,
2018, the scheduled date for deactivating the legacy FTP server.

The new EMWIN IDP FTP service provides the following
improvements:

-Eliminates the need for users to register for and use assigned
user name and passwords to access the EMWIN archive files. The
new EMWIN IDP FTP service is hosted on an anonymous FTP server,
providing open public access 24x7, over the public Internet.

-Increases the FTP service operational availability by employing
a backup IDP anonymous FTP service that becomes operational in
the event of a catastrophic failure of the primary IDP anonymous

FTP service.

Two separate and unique sets of EMWIN archive files will be
presented on the EMWIN IDP FTP service: one for the older
generation GOES-15 satellite (GOES-West) and one for the newer
generation GOES-16 satellite (GOES-East). The unique

characteristics of their individual satellite broadcast services
require separate archives as a result of:

-Different file naming conventions used for the WMO product
files appearing on the GOES-West and GOES-East broadcasts.
Products on GOES-West retain the legacy EMWIN eight character
file name, while the GOES-East will implement the 63 to 66
character WMO compliant file name convention. Additional
information on the GOES-East file naming convention is available
for review here:
http://www.nws.noaa.gov/emwin/EMWIN_GOES-R_filename_convention.pdf

-The maximum data rate on the GOES-West and GOES-East satellite
broadcast services will be 19.2 kbps and 256 kbps, respectively.

The higher data rate may periodically deliver a greater number
of products in a given time interval, potentially increasing the
archive file product count for comparable periods of time.

The NWS EMWIN IDP FTP archive file names and descriptions are:

*** TEXT PRODUCTS ***

txtmin02.zip ....... two minute file
txtmin06.zip ....... six minute file
txtmin20.zip ....... twenty minute file
txthrs01.zip ....... one hour file
txthrs03.zip ....... three hour file

*** BINARY FILES (IMAGES) ***

imgmin15.zip ....... fifteen minute file
imghrs01.zip ....... one hour file
imghrs03.zip ....... three hour file

Additional information on the new IDP anonymous FTP service and files is found in the Enterprise EMWIN FTP Service Description document available here:
http://www.nws.noaa.gov/emwin/eEMWIN%20FTP%20Service%20Description%20draft%20v0.2%20-%20r161118-0935.pdf

A Service Change Notice (SCN) will be sent before transitioning
operations to the new EMWIN IDP FTP service.

Questions or comments about this service should be emailed to:
iscs.dm@noaa.gov

National Public Information Statements are online at:
http://www.weather.gov/os/notif.htm

NNNN

Effective 2017/07/28

NOUS41 KWBC 281800
PNSWSH

Service Change Notice 17-91 National Weather Service Headquarters Silver Spring, MD 200 PM EDT Fri Jul 28 2017

To: Subscribers:
    -NOAA Weather Wire Service
    -Emergency Managers Weather Information Network
    -NOAAPORT
    Other NWS partners and NWS employees

From: Michelle Mainelli Acting Director, Office of Dissemination

Subject: EMWIN GOES-East satellite broadcast signal and file format changes effective November 2017

Effective in November 2017, the National Environmental Satellite, Data, and Information Service (NESDIS) Geostationary Operational Environmental Satellite (GOES)-16 will replace the existing operational GOES-13 at the GOES-East geosynchronous orbit location of 75 degrees west longitude. The GOES-East location assignment was announced by NESDIS on May 25, 2017. The specific date and time in November for the replacement has not been announced. An updated Service Change Notice will be sent when the date is determined.

The NWS and NESDIS hosted two public Webinars in April and August 2016 to identify and review the changes to the Emergency Managers Weather Information Network (EMWIN) broadcasts with the introduction of GOES-16. The Webinars also included time to receive and respond to participant questions and
comments regarding these changes. Participants included individual users,emergency managers, third party emergency alert service providers, media outlets and hardware and software manufacturers. The presentations provided at these Webinars are available here:
http://www.nws.noaa.gov/emwin/documents

The operational deployment of GOES-16 introduces three changes to the GOES-East EMWIN broadcast impacting the reception and decoding of products in the High Rate Information Transmission (HRIT)/EMWIN L-band satellite broadcast data stream, as follows:

-HRIT/EMWIN Receiver: GOES-16 broadcasts the EMWIN and the NESDIS HRIT data streams over a single transponder in a combined HRIT/EMWIN format. EMWIN receive stations will need to be updated with an HRIT/EMWIN receiver and antenna system to receive and decode the EMWIN data stream from the HRIT/EMWIN broadcast.

-Full-File Format: The products on the EMWIN segment of the GOES-16 HRIT/EMWIN broadcast are sent as complete files, in contrast to the Quick Block Transfer (QBT) packet format employed on the GOES-13 EMWIN broadcast. Software updates may be required to properly handle this new full-file format.

-File Name Change: The file name assigned to each of the full-file products on the EMWIN segment of the HRIT/EMWIN broadcast will contain 63 to 66 alpha-numeric characters followed by a period and a three character file extension. The new file name convention is online at:
http://www.nws.noaa.gov/emwin/EMWIN_GOES-R_filename_convention.pdf

The GOES-16 satellite is now in orbit at a service check-out location (89.5 degrees west longitude) until November 2017. The satellite's HRIT/EMWIN transponder is active but may periodically be taken off line to accommodate other spacecraft events. Users are encouraged to install and verify the operations of new or updated HRIT/EMWIN receive equipment and software. The HRIT/EMWIN broadcast should not be used for operations until GOES-16 is declared operational in November 2017.

Questions or comments regarding these changes may be emailed to the NWS EMWIN support staff at: nws.emwin.support@noaa.gov.

National Service Change Notices are online at: http://www.nws.noaa.gov/os/notif.htm

NNNN