COUNTY SHAPEFILE CHANGE HISTORY: 27 JUN 2024 (c_10se24.*) No change due do to SCNs ERRATA fixed with this release: State of Hawaii shifted 0.25 miles SE Fixed area in along the Alabama/Florida border Removed small polygon between Duval/St. Johns County in JAX CWA Fixed area SE Duval/NE St. Johns County in JAX CWA DKR ------------------------------------------------------ 22 FEB 2024 Effective 05 March 2024 (c_05mr24.*) During maintenance of the shapefile, records of the same name were merged together. This accounts for one less record in the shapefile with this new update. DKR ------------------------------------------------------ 22 DEC 2023 Effective 05 March 2024 (c_05mr24.*) Per SCN 23-113, due to adjustment state wide, features may be slightly different in AK DKR ------------------------------------------------------ 30 JUN 2023 Effective 19 September 2023 (c_19mr23.*) Per SCN 23-77, 23-78 Due to removal of lagoons state wide, features may be slightly different in AK DKR ------------------------------------------------------ 14 FEB 2023 Effective 08 March 2023 (c_08mr23.*) Per SCN 22-124 Change to in Maryland around the Sassafras River Per SCN 22-123 Changes for American Samoa (WSO PPG) Per SCN 22-128, 22-129, 22-130 Due to removal of lagoons state wide, features may be slightly different in AK DKR ------------------------------------------------------ 19 AUG 2022 Effective 13 September 2022 (c_13se22.*) No material changes to the files. Files name change was required to reflect new effective date of change. DKR ------------------------------------------------------- 11 JUL 2022 Effective 7 September 2022 (c_07se22.*) Per SCN 22-59 In Alaska, creating Petersburg Borough and reconfiguring Hoonah-Angoon and Prince of Wales-Hyder Census Areas DKR ------------------------------------------------------- 13 JAN 2022 Effective 22 March 2022 (c_22mr22.*) Per SCN 20-31 In Alaska, split Valdez-Cordova census area into Chugach census area and Copper River census area. DKR ------------------------------------------------------- 28 SEP 2020 Effective 10 November 2020 (c_10nv20.*) Per SCN 20-31 Cecil and Garrett counties and corresponding zones in Maryland now fall under the LWX WFO. DKR -------------------------------------------------------- 29 May 2020 The move of Cecil and Garrett county to the LWX CWA has been postponed DKR ------------------------------------------------------ Effective 03 March 2020 03 March 2020 (c_03mr20.zip) Per SCN 19-112 Lake County in California now under EKA responsibility. DKR -------------------------------------------------------- Effective 02 June 2020 25 February 2020 (c_02jn20.zip) Per SCN 20- Cecil and Garrett county in Maryland now fall under the LWX WFO. Also, cleaned up islands off Southern California coast for this release. ALSO: BEGINNING WITH c_02jn20.zip shapefiles and continuing forward, the county shapefiles underwent point reduction to a tolerance of 0.0001 decimal degrees. --------------------------------------------------------- Effective 02 April 2019 (changed from 05 March 2019 due to lapse of appropriations) 18 December 2018 (c_02ap19.zip) Per SCN 18-113 Reconfigured counties in Northern California (WFO EKA) DKR ----------------------------------------------------------------- Effective 02 October 2018 23 July 2018 (c_02oc18.zip) Per SNC 18-73 moved two counties/zones from MEG to LZK. DKR ------------------------------------------------------------------ Effective 10 July 2018 (c_10jl18.zip) Per SCN 18-48 Merged Outer Banks Dare and Mainland Dare Merged Outer Banks Hyde and Mainland Hyde DKR 2018-06-06 ------------------------------------------------------------------ Effective 15 May 2017 (c_11au16.zip) Change the NAME/FIPS of Wade Hampton/02270 to Kusilvak/02158 in AK. Note: No Boundary Change/No Change in AWIPS file name ---------------------------------------------------------------------- Effective 11 August 2016 12 July 2016 (c_11au16.zip) Per SCN 16-24 Land/water areas adjusted in WFO OKX to add Governor's Island. ----------------------------------------------------------------------------- Effective 5 April 2016 26 February 2016 (c_05ap16.zip) Per SCN 16-07 CHS zone AMZ330 enlarged - land area modified accordingly. 18 April 2016 (c_05ap16a.zip) Due to vital changes needed for warnings in WFO BUF, Unity Island added to Erie county and land/water areas adjusted. ------------------------------------------------------------------------ Effective 10 November 2015 8 October 2015 Per SCN 15-48 the coastline for counties in MFR were adjusted. -------------------------------------------------------------------------- Effective 8 September 2015 10 August 2015 (c_08se15.zip) Per SCN 15-40 counties in HFO broken into individual islands or groups of islands. ------------------------------------------------------------------------- Effective 1 October 2015 per SCN 15-31 26 May 2015 (c_01oc15.zip) Shannon County SD becomes Oglala Lakota County. FIPS changes to 46102. 5 August 2015 (c_01oc15a.zip) Changes to 3 December version carried forward to this version --------------------------------------------------------------------------------- Effective 3 December 2014 per SCN 14- 17 September 2014 (c_03de14.zip) Counties in BOX and GYX counties switching WFOs. 8 May 2015 (c_03de14a.zip) Minor boundary change for accuracy made to Lake of the Woods MN, Cameron/Vermillian Parishes and St. Mary/Terrebonne Parishes LA. 5 August 2015 (c_03de14b.zip) Shapefile thoroughly checked for gaps and overlaps. Vertices in polygons limited to 0.000001 segment length polygons no smaller than and 0.000001. --------------------------------------------------------------------------------- Effective 4 June 2014 per SCN 14-33 30 May 2014 (c_04jn14.zip) Land/water interface changed for LWX marine zones; affects land in PHI and AKQ. 20 June 2014 (c_04jn14a.zip) Important fix in BUF to cut off the Salmon River portion of LOZ045 which created bad results when issuing a Special Marine Warning. The land opening for the water in Oswego county was filled. 21 July 2014 (c_04jn14b.zip) Three small "water" areas in Queen Anne's county MD were mistakenly in Talbot county and thus were reassigned correctly. 26 July 2014 (c_04jn14c.zip) Emergency fix: The lower portion of St. Martin's parish LA in LCH was erroneusly designated as St. Mary's parish. ----------------------------------------------------------------------------- Effective 1 April 2014 per SCN 14-08 27 February 2014 (c_01ap14.zip) County change in MFL 25 March 2014 (c_01ap14a.zip) Numerous checks for gaps/ovelaps/segment lengths and general cleanup ------------------------------------------------------------------------------- Effective 5 February 2014 per SCN 13- 22 November 2013 (c_05fe14.zip) Benton County TN CWA designation chaned from OHX to MEG. Alaska Boroughs (counties) brought to FIPS compliance per SCN 13-75. 4 March 2014 (c_05fe14a.zip) Extraneous vertices removed from San Juan and Mckinley counties in New Mexico and Navajo county Arizona. ------------------------------------------------------------------------------- Effective 3 December 2013 per SCN 13-49 --------------- 3 October 2013 (c_03de13.zip) Original version 23 December 2013 (c_03de13a.zip) Minor errrors within TBW land water boundaries fixed. This version and ass subsequent verstions have been check for overlapping polygons, unneeded gaps, minimum segment lengths of 0.000001 and minimum polygon areas of 0.00000001. 9 January 2014 (c_03de13b.*) Small island at border between Levy and Citrus reassined properly to Levy Missing strip of coastal land replaced in Matagoria TX Gallatin county and Freemont county ownership fixed ----------------------------------------------------------------------------------- Land/water areas modified in TBW per SCN 13-49 15 August 2013 -------------- (c_15au13.*) Per SCN 13-45 Changes to AKQ land water areas. ------------------------------------------------------------------------------------- 1 July 2013 ----------- (c_01jl13.*) The City of Bedford VA loses it's independent city designation on 1 July 2013 therefore per SCN 13- the city polygon is merged with the surrounding county polygon. 2 April 2013 ------------ (c_02ap13.*) Per SCN 13-18 coastline of ILM modified to create "land" area of coastal inland waters. 10 Septtember 2012 ------------------ Per SCN 12-31 expansion of a marine zone (GMZ635) and the addition of the Houston Ship Channel as a "land" are to Harris County TX. 7 May 2012 ----------- (c_07jn12.*) A county was modified in ILM per SCN-12-18. Winyah Bay currently in marine zone AMZ256 was clipped out of the marine zone and added as a "land" polygon to Georgetown county. 30 November 2011 ---------------- (c_03ap12.*) Due to changes to the land/water boundaries for the AKQ marine zone changes in SCN 11-41 , the county shapefile needed modifying also. 24 February 2011 ---------------- (c_01de10.*) This version of the shapefile has no boundry/name changes. It is however derived from a new data source (TIGER 2000) and is now at a 1:100,000 resolution resulting in finer detail but larger file size in the .shp portion, 02 October 2008 --------------- (c_03oc08.*) Modified areas in LCH to accomodate new marine zones per SCN 08-44. 11 March 2007 ------------- (c_11mr07.*) Updated Time zone field for change of Indiana time zones 10 January 2007 - overwrote lat/lon values for MPX with new ones supplied from site 22 March 2006 ------------- (c_16mr06.*) Changed WFO designator for Key West FL from EYW to KEY per SCN 05-35. 2 November 2007 - removed duplicate polygon for 06097 Sonoma CA. 10 February 2006 ---------------- (c_10fe06.*) Changed time zone of 8 Indiana counties from Eastern to Central time effective 2 April, 2006. Counties are Pulaski, Starke, Daviess, Dubois, Knox, Martin, Perry, and Pike. 09 August 2005 -------------- (c_06ja06.*) Spelling of DeKalb County in IL and TN changed from De Kalb (space removed). Some islands in Kauai County HI had wrong FIPS code. Corrected to read 15007. Fe_area for WFO CRP changed to SO. SO is new code for "South". 16 July 2005 ------------ (c_14jl05.*) Yellowstone National Part FIPS MT113 removed and are returned to Gallatin County and Park County per FIPS change Notice 4, JULY 19, 1999 in WFO RIW. Independent Cities in the Commonwealth of Virginia for WFO RNK were renamed with prefix "City of": Danville to: City of Danville Galax to: City of Galax Martinsville to: City of Martinsville Radford to: City of Radford Salem to: City of Salem Roanoke to: City of Roanoke Bedford to: City of Bedford Lynchburg to: City of Lynchburg Buena Vista to: City of Buena Vista Lexington to: City of Lexington Covington to: City of Covington Northern border of the State of Vermont modified to match higher resolution. Border between Greene and Webster Counties MO adjusted slightly for SGF. 23 December 2004 ---------------- (c_28de04.*) In accordance with SCN 04-57, the counties of Bear Lake and Franklin in the state of ID were transferred from SLH to PIH. Small portion of boundary between Calhoun and Talladega counties in AL moved slightly further south to me more in line with the boundary of a 1:100,000 data set. This was required to make a METAR site properly located to reside in the proper county. 30 November 2004 ---------------- (c_30nv04.*) This version contains the latest change for Clifton Forge plus the ABQ change. 30 November 2004 (c_28nv04.*) Changed portion of border between Santa Fe and Los Alamos counties in NM for WFO ABQ. Border was modifed to more closly follow a higher resolution boundary (1:100,000) to allow the county and public forecast zone boundary to line up. Clifton Forge change NOT in this version. 03 November 2004 --------------- (c_04nv04.*) In accordance with SCN 04-53, the polygon representing Clifton Forge VA has been eliminated (combined with surrounding Allegany County). 03 November 2004 ---------------- (c_02nv04.*) The "land" area that comprised Lake Okeechobe FL was removed from the county shapefile at the request of the affected offices MFL and MLB. 04 October 2004 ---------------- (c_04oc04.*) Islands in Lake Erie added to CLE counties Lucas, Ottawa and Erie. Hyde and Dare Counties NC in MHX are now a single polygon. Extraneous polygon with erroneus FIPS 01000 removed from Alaska. 3 September 2003 ---------------- (c_04se03.*) Fe_area attribute for BMX modified. Entries with "c" changed to "cc". 17 November 2003 ---------------- (c_18nv03.*) Counties for Alaska updated. 05 November 2003 ---------------- (c_06nv03.*) Time zome changed from M to C for Jones, Mellette and Todd counties in South Dakota. Time zone changes for Morton county in North Dakota. Fe_area changed for FSD. CWA attribte changed to SLC for Kane, Wayne and Washington counties. 25 September 2003 ----------------- (c_25se03.*) Fe_area attribute for Chase County KS changed to cc. 29 August 2003 -------------- (c_28au03.*) Three counties (Franklin, Moore, and Lincoln, TN) transferred from OHX (Nashville) to HUN (Huntsville). Small modification to Eastern boundary of Saline County for ICT. 01 August 2003 -------------- (c_01au03.*) In accordance with SCN 03- With the zone ownership of NV zone 13 being transferred from VEF (Las Vegas, NV) to LKN (Elko, NV), the CWA field designator for Nye County was changed to reflect the dual ownership. Fe_area field modifed for BTV modified. 12 May 2003 ----------- (c_12my03.*) Fe_area changed for MTR to "" for Napa, Alameda, San Mateo, Santa Clara, Monterey, Santa Cruz, San Benito, Marin, Contra Costa, San Fransisco, Sonoma. Fe_area changed for APX Otsego, to nn. Fe_area changed for ALY Schoharie, Albany, Columbia, Greene, Ulster, Dutchess, Schenectady, Rensselaer, Saratoga, Warren, Washington to ee. 3 December 2002 --------------- (c_10de02.*) Changed CWA attribute to HUN for counties to be in new Huntsville AL WFO. 10 September 02 --------------- (c_30au02.*) The fe_area attribute was modified for DeSoto County MS in MRX. 14 August 2002 -------------- (c_14au02.*) The fe_area attrubite was modified for CHS, GJT, SGX. The CWA field was modified to put San Juan CO in the correct WFO (GJT). 1 May 2001 ---------- (c_25ap02.*) The office identifier for WSO Pago Pago, American Samoa has been changed to PPG. The office identifier for Chaffee County CO was corrected to read PUB. Spelling for Metcalf County, Kentucky, KY corrected 25 March 2002 ------------- (c_22mr02.*) Fe_area was updated for MQT. 05 February 2002 ---------------- (c_05fe02.*) Tiny "holes" in CO counties Grand and Elbert, removed. 01 February 2002 ---------------- (c_03fe02.*) In response to SCN 01-75, a new county, Broomfield County, CO was added. 19 November 2001 ---------------- (c_19nv01.*) Corrected boundary between Madera and Fresno Counties, CA. 2 November 2001 --------------- (c_30oc01.*) In response to SCN 01-56, for MFL (Miami, FL) the FIPS code for Miami-Dade county was changed to 086 to be compliant with the FIPS standard. Fearea for remaining counties not set in PAH were set to se; counties in LSX with c for fearea were changed to cc. 29 June 2001 ------------ (c_30jn01.*) In response to SCN 01-27, Marengo County AL was transferred from MOB (Mobile AL) to BMX (Birmingham, AL). 18 May 2001 ----------- c_16my01.* Fearea information added for countues in MAF (Midland/Odessa TX). 24 January 2001 --------------- c_24ja01.* An erroneous "gap" at the border of Gulf and Bay Counties, FL, from the Gulf of Mexico to East Bay was repaired. 27 November 2000 ---------------- c_27nv00.* Fearea information for the Tennesee counties in MRX was changed from ee to the new ea abbreviation for EAST. The timezone for Wayne County, KY in JKL was changed to E at the request of JKL and in accordance with the Department of Transportation 49 CFR Part 71, effective 29 October, 2000. 18 October 2000 --------------- (c_18oc00.*) Changed the FIPS code for Miami-Dade County back to the FIPS code 12025 which was used for the county when it was called Dade County. 25 September 2000 ----------------- (c_25se00.*) No changes to this version. 11 September 2000 ----------------- (c_11se00.*) Fearea for MEG added. In accordance with NIST change No.5 22 July, 1999 and the concurrence of MFL, the name of Dade County FL was changed to Miami-Dade, with new FIPS code 12086. 12 June 2000 ------------ (c_05jn00.*) In GJT area, border between Hinsdale and Mineral counties and border between Archuleta and Conejos counties adjusted for accuracy using TIGER95 boundaries. 10 May 2000 ---------- (c_15my00.*) Update the Fearea parameter for ILN. Fearea from LMK for KY which updated/added fearea data for the KY portions of JKL, LMK and PAH. Timezone field for Harrison, IN Floyd, IN Clark, IN was updated to accurately refflect their compliance with Daylight Savings time. 20 March 2000 ------------ (c_20mr00.*) A small adjustment was made to the Ventura County CA coastline. 06 March 2000 ------------ (c_06mr00.*) "Moved" in response to SCN 0035, Decatur County, TN from OHX to MEG. 01 March 2000 ------------- (c_01mr00.*) Changed PR FIPS codes to standard FIPS per SCN 0031. Edited Fearea for Montmorency County, MI for APX. 24 Febrary 2000 -------------- (c_22fe00.*) Several counties which are really independent cities in VA were given names starting with "City of". Modified entries are: City of Waynesboro City of Fairfax City of Winchester City of Staunton City of Manassas Park City of Manassas City of Harrisonburg City of Charlottesville City of Fredericksburg City of Falls Church In LA, the land comprising Lake Ponchatrain and Lake Mariposa has been "cut out" of the shapefile leaving a "hole" for the lakes. Fearea for City of Richmond, VA in AKQ was changed 04 Febrary 2000 --------------- (04fe00.*) 1. Fe_area data for the following offices was added: APX, ARX, BMX, CHS, GRB, GSP, HGX, LIX, LSX, MFL, MHX, MOB, MPX, MRX, PBZ, RAH, SGX, SHV, TAE, TBW. 2. For MHX Created the following records: "Mainland Dare", "Offshore Dare", "Mainland Hyde", "Offshore Hyde" MFL Monroe renamed Mainland Monroe. For EYW, Created the following records "Lower Keys in Monroe", "Middle Keys in Monroe", "Upper Keys in Monroe". No changes were made to the actual shapes, no boundaries added or deleted. The records for these counties were not unioned into 1 county record. 3. Prefixed the following Virginia counties with "City of": Bristol, Chesapeake, Colonial Heights, Emporia, Franklin, Hampton, Hopewell, Newport News, Norfolk, Norton, Petersburg, Poquoson, Portsmouth, Richmond, Suffolk, Williamsburg, Virginia Beach. 4. Discovered and fixed reversed FIPS code for Fairfax County/City of Fairfax, VA. 20 November 1999 - 23 December 1999: ------------------------------------ (c_30nv99.*) 1. Values for FE_AREA field added for BGM, BYZ, CAE, CLE, DLH, FFC, GID, GRR, ILM, LMK, LOX, MKX, MLB, PHI, PSR, RNK, SGF. 19 November 1999: ----------------- (c_18nv99.*) 1. The following counties were changed per OM SCN #99-91, effective November 30, 1999 [LSX, DVN] CLARK (MOC0450) from LSX to DVN SCOTLAND (MOC199) from LSX to DVN 2. FE_AREA values received and inserted for the states of IA and MT. 06 October 1999: ---------------- (c_06oc99.*) 1. Correction - Border between San Juan and Garfield counties in Utah adjusted to match actual county boundary. [SLC, GJT] 15 September 1999: ------------------ (c_15se99.*) 1. The following counties were changed per OM SCN #99-38r, effective September 22, 1999 [BMX, FFC] CHATTAHOOCHEE (GAC053) from BMX to FFC MUSCOGEE (GAC215) from BMX to FFC STEWART (GAC259) from BMX to FFC 2. The following counties were changed per OM SCN #99-39r, effective September 22, 1999 [BMX, TAE] QUITMAN (GAC239) from BMX to TAE 3. The following counties were changed per OM SCN #99-40c, effective September 22, 1999 [BMX, MOB] MARENGO (ALC091) from BMX to MOB 23 August 1999: --------------- (c_23au99.*) 1. The FE_AREA attribute has been populated based on field-provided data for the following states unless noted otherwise: Oklahoma (remainder of AMA area) [AMA] Washington [OTX, PDT, PQR, SEW] 2. FIPS code for Villalba, PR corrected to 72113. [SJU] 3. Corrected spelling of Trujillo Alta, PR. [SJU] 30 July 1999: ------------- (c_30jl99.*) 1. The FE_AREA attribute has been populated based on field-provided data for the following states unless noted otherwise: Oklahoma (remainder of TSA area only) Tennessee (partial CWA for MEG and MRX, complete CWA for OHX) 20 July 1999: ------------- (c_20jl99.*) 1. Due to the change of ownership of the Maine zones from GYX to CAR, the following counties no longer have split zones: Hancock Penobscot Piscataquis Washington 2. The FE_AREA attribute has been populated based on field-provided data for the following states unless noted otherwise: AR, AZ, CA (all or portions of WFOs EKA, HNX, MFR, MTR, REV, and STO only), CO, CT, ID, IL, IN, KS, MA, ME, MI (DTX only), MN, MO (EAX only), ND, NE, NH, NM, NV, NY, OH, OK (OUN and partial TSA only), OR, PA (CTP only), RI (no descriptors per WFO BOX), SD, TX, VT, WV (no descriptors per WFO RLX), and WY. 15 July 1999: ------------- (c_15jl99.*) 1. Corrected sliver found in the EKA area in the northern corner of Del Norte, CA that was incorrectly assigned to Humboldt, CA. 2. Mitchell County, TX, transferred from SJT to MAF per PSN #99-47. 17 June 1999: ------------- (c_17je99.*) Modification to San Bernardino County, CA to show it consists of forecast zones for three separate WFOs (SGX, VEF, and PSR). There were no boundary changes made to the file. Corrections to the following county spellings in SJU area at request of SJU: Utuado, Isabela, and Morovis. NOTE: The time zone label for all zones in the SJU area was changed from "V" to "A" at the request of SJU. However, following this change it was discovered that this label conflicts with the official DOT definitions which specify the Alaska time zone being "A" and Puerto Rico being "V". Therefore, the next revision to the county shapefile will change the time zone label for the SJU area back to "V". 27 April 1999: -------------- (c_27ap99.*) Added Pigeon Key, FL polygon Corrected Del Norte/Humboldt (CA) counties duplicate record problem Corrected assignment of several northern Florida Keys from Monroe County to Dade County 06 April 1999: -------------- Lake County, CO from GJT to PUB Adjuntas and Penuelas border realignment in Puerto Rico 28 Dec 98: ---------- Correction: Spelling corrections -- Ravilli, MT changed to Ravalli, MT and Aranas, TX changed to Aransas, TX 1 Dec 98: --------- Addition: Re-addition of American Samoa (AS) Correction: Marianas Is County names Update: Cumberland & Fentress Counties TN from MRX to OHX, Bledsoe, Marion & Sequatchie Counties TN from OHX to MRX 15 Oct 98: ---------- Change: Time Zone 2 chars wide. Added 2 time zones for time zone splits in county Addition: Spelling corrections for DuPage County IL, Ravilli MT. Addition: Addition of Middleton Is, AK