United States Department of Agriculture
Natural Resources Conservation Service
National Water and Climate Center Go to Accessibility Information
Skip to Page Content
National Water and Climate Center

  

Map Products

Water Supply Forecasts

Streamflow Forecast Map      
1st of Month
West-wide map % of Average
Regional maps % of Average by region:
Alaska
Arkansas, Colorado and Rio Grande Basins
Columbia Basin
Great Basin and California
Missouri Basin

Maps display the 50% exceedance forecast.  Maps are published January through May. For the 90%, 70%, 30% and 10% exceedance forecasts, consult the Historical Basin Outlook Reports and the State Basin Outlook Reports.  For more information on interpreting exceedance forecasts, refer to Forecasting.