Snowpack and Precipitation Index Maps
The Basin Filled GIS Maps are being retired and will no longer be updated or available. The National Water and Climate Center now provides similar information in an updated format, linked below by state and content.
Snowpack and Precipitation Index Maps
West wide Snow Water Equivalent Index Water Year Precipitation Index
Alaska Snow Water Equivalent Index Water Year Precipitation Index
Arizona Snow Water Equivalent Index Water Year Precipitation Index
California Snow Water Equivalent Index Water Year Precipitation Index
Colorado Snow Water Equivalent Index Water Year Precipitation Index
Idaho Snow Water Equivalent Index Water Year Precipitation Index
Montana Snow Water Equivalent Index Water Year Precipitation Index
Nevada Snow Water Equivalent Index Water Year Precipitation Index
New Mexico Snow Water Equivalent Index Water Year Precipitation Index
Oregon Snow Water Equivalent Index Water Year Precipitation Index
Utah Snow Water Equivalent Index Water Year Precipitation Index
Washington Snow Water Equivalent Index Water Year Precipitation Index
Wyoming Snow Water Equivalent Index Water Year Precipitation Index