Water Supply Forecast Predefined Reports
Predefined links for a variety of water supply forecast reports.
NWCC Programs & Services
National Water and Climate Center Contact US SSWSF Program NWCC Apps Interactive Map Snow and Climate Data Reports
Reports
Basin Data Reports - Select "Forecast" as report type
Maps
April 1, 2023 Water Supply Forecast Verification
Graphs
30-Year Medians and Averages
Streamflow 30-Year Medians and Averages (1991-2020) Effective Oct. 1, 2021
Learn more about water supply forecasting at NRCS
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 by state and content. Links to these new maps can be found on the page Snowpack and Precipitation Index Maps.