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Snow Across the Great Lakes, Central Appalachians, and Northeast; Unsettled Weather in the West

Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >

National Weather Service Dissemination

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ISCS Advisories

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Effective 2022/02/11

Topic: GOES-14/15/16/17 Spring 2022 Solar RFI predicted times are now available 
Date/Time Issued: February 11, 2022 2100 UTC 
Product(s) or Data Impacted: GOES-14/15/16/17 Imager and Sounder Data plus Ancillary Services (GVAR, SAR, LRIT, EMWIN, DCS, GRB, etc.)

 

Date/Time of Initial Impact: February 22, 2022 1704 UTC 

Date/Time of Expected End: March 9, 2022 2152 UTC 

Length of Outage: See table in details. 

 

Details/Specifics of Change: 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.

 

We received the following information from our Mission Operations Division concerning the potential for outages of the GOES data stream including GVAR (GOES Variable) Imager and Sounder, SAR (Search and Rescue), High Rate Information Transmission (HRIT), Sensor Data (SD), Telemetry and Command (T&C), Weather Facsimile (WEFAX), Data Collection Platform Report (DCPR), Multi-use data link (MDL), Raw Data Link (RDL), etc.

 

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, as well as degradation or loss in the GVAR data.

 

SOLAR RFI PREDICTED TIMES FOR SPRING 2022

SPACECRAFT    DATE  TIME STATION OPERATIONAL IMPACT
GOES-14  1 MAR - 8 MAR 1920 - 1932Z WALLOPS  T&C
   1 MAR - 8 MAR 1920 - 1932Z SUITLAND  
  1 MAR - 8 MAR 1918 - 1929Z FAIRMONT  
         
GOES-15 2 MAR - 9 MAR  2101 - 2112Z WALLOPS GVAR, T&C, SD
   1 MAR - 8 MAR  2100 - 2111Z SUITLAND  
  22 FEB - 2 MAR 2034 - 2045Z FAIRBANK  
  1 MAR - 8 MAR 2059 - 2110Z FAIRMONT  
         
GOES-16  1 MAR - 8 MAR 1706 - 1717Z WALLOPS RDL, GRB, T&C, HRIT, DCPC, SAR
  1 MAR - 8 MAR 1705 - 1716Z SUITLAND  
   1 MAR - 8 MAR  1704 - 1715Z FAIRMONT   
         
GOES-17  2 MAR - 9 MAR 2141 - 2153Z WALLOPS RDL, GRB, T&C, HRIT, DCPC, SAR
  2 MAR - 9 MAR  2141 - 2152Z SUITLAND  
  2 MAR - 8 MAR 2140 - 2152Z FAIRMONT   

 

 

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

 

Web Site(s) for applicable information:

See https://www.ospo.noaa.gov/Operations/messages.html for this and other satellite related messages.

See http://www.ospo.noaa.gov/Operations/GOES/schedules.html for full GOES scanning schedules and scan sectors.

See http://www.noaasis.noaa.gov/ for Direct Services Branch (DSB) information.

 

Effective 2021/09/28

September 28, 2021 1815 UTC

Topic: GOES-13/14/15/16/17 Fall 2021 Solar RFI predicted times are now available

Date/Time Issued: September 28, 2021 1815 UTC

Product(s) or Data Impacted: GOES-14/15/16/17 Imager and Sounder Data plus Ancillary Services (GVAR, SAR, HRIT, GRB, RDL, etc.)

Date/Time of Initial Impact: October 4, 2021 2119 UTC

Date/Time of Expected End: October 18, 2021 2101 UTC

Length of Outage: See table in details.

 

Details/Specifics of Change: 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.

We received the following information from our Mission Operations Division concerning the potential for outages of the GOES data stream including GVAR (GOES Variable) Imager and Sounder, SAR (Search and Rescue), High Rate Information Transmission (HRIT), Sensor Data (SD), Telemetry and Command (T&C), Weather Facsimile (WEFAX), Data Collection Platform Report (DCPR), Multi-use data link (MDL), Raw Data Link (RDL), etc.

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, as well as degradation or loss in the GVAR data.

 

SOLAR RFI PREDICTED TIMES FOR FALL 2021

SPACECRAFT    DATE  TIME STATION OPERATIONAL IMPACT
GOES-14 5 OCT - 12 OCT  1855 - 1906Z WALLOPS T&C
  5 OCT - 12 OCT 1854 - 1905Z SUITLAND  
  5 OCT - 12 OCT 1852 - 1903Z FAIRMONT  
         
GOES-15 4 OCT - 11 OCT 2034 - 2046Z WALLOPS GVAR, PDR, T&C, SD, MDL
  5 OCT - 12 OCT  2033 - 2045Z SUITLAND   
  5 OCT - 12 OCT 2032 - 2044Z FAIRMONT  
  11 OCT - 18 OCT 2003 - 2015Z FAIRBANK  
         
GOES-16 4 OCT – 11 OCT 1644 - 1655Z WALLOPS RDL, GRB, T&C, HRIT, DCPC,
  4 OCT – 11 OCT 1643 - 1654Z SUITLAND SAR
  4 OCT – 11 OCT 1641 - 1653Z FAIRMONT  
         
GOES-17 3 OCT – 10 OCT 2118 - 2129Z WALLOPS RDL, GRB, T&C, HRIT, DCPC,
  3 OCT – 10 OCT 2117 - 2128Z SUITLAND SAR
  4 OCT – 11 OCT 2117 - 2128Z FAIRMONT  
         

 

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

 

Web Site(s) for applicable information:

See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages.

See http://www.ospo.noaa.gov/Operations/GOES/schedules.html for full GOES scanning schedules and scan sectors.

See http://www.osd.noaa.gov/GVAR_Downloads/gvar_downloads.html for more GVAR information.

See http://www.noaasis.noaa.gov/ for Direct Services Branch (DSB) information.

 

Effective 2021/03/25


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/ 
 
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Effective 2021/02/26

Re: 20-117 Update

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/ 

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