National Weather Service United States Department of Commerce


Shapefile Type: Polygon

Data source: Derived from US County Waning Areas and River Basins

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

Description: Areas of hydrologic responsibility for each Weather Forecast Office (WFO).


Description Valid date Data Download # Records Documentation
HSA Boundaries

05 June 2019
Date last upload: 24-JUN-19 123 Change History


Shapefile Attributes:

field name type width,dec description
WFO character 3 WFO Identifier (name of CWA)
LON numeric 10,5 Longitude of centroid [decimal degrees]
LAT numeric 9,5 Latitude of centroid [decimal degrees]