National Weather Service United States Department of Commerce

 

Shapefile Type: Polygon

Data source: Derived from US Counties

Naming convention: z_ddmmyy  where ddmmyy = day-month-year

NWS Specifications: NWSM 10-507

Description: The NWS issues forecasts and some watches and warnings for public zones which usually are the same as counties but in many cases are subsets of counties.  Counties are subset into zones to allow for more accurate forecasts because of the differences in weather within a county due to such things as elevation or proximity to large bodies of water.

 

Description Valid date Data Download # Records MD5SUM Documentation
Public Forecast Zones 1 May 2018 z_01my18.zip 3795 94B5FC1C1B00CA429ECF5C73E2178A8F Change History Metadata
10 July 2018 z_10jl18.zip 3809 77E3160E6370C7AB313BD5C70DDFF55C

 

Shapefile Attributes:

Field Name Type  Width, Decimals Description
STATE Character 2 U.S. Postal Standard two letter abbreviation
ZONE Character 3 Zone Number from NWSI 10-507.
CWA Character 3 CWA (WFO) abbreviation from NWSI 10-507.
NAME Character 254 Zone name from NWSI 10-507.
STATE_ZONE Character 5 Concatenation of State and zone with underscore
TIME_ZONE Character 2 Time zone abbreviation
FE_AREA Character 2 Cardinal area of state
LON Numeric 10,5 Longitude of Centroid (decimal degrees)
LAT Numeric 9,5 Latitude of Centroid (decimal degrees)
SHORTNAME Character 32 Name truncated to 32 characters