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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. 

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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