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Water Supply Information
Seasonal Runoff Forecasts
(issued by California Cooperative Snow Surveys)
- Monthly Bulletin 120 river runoff forecast: Latest | Previous
(issued from February 1 through May 1)
- Weekly update to the Bulletin 120 river runoff forecast: Latest | Previous
(issued from February through June)
- State map of April through July unimpaired snowmelt runoff
- Historical Bulletin 120 - Water Conditions in California
- Sacramento and San Joaquin Valley Water Year Type Index forecast: Latest | Previous
(issued monthly from December 1 through May 1)
- Historical Sacramento and San Joaquin Valley Water Year Type Index
- Peak snowmelt runoff forecast
(issued from April through June cooperatively with the California-Nevada River Forecast Center)
Water Supply Conditions