Water Supply Information

Monthly Bulletin 120 river runoff forecast (issued from February 1 through May 1): Latest | Previous

Weekly update to the Bulletin 120 river runoff forecast (issued from February through June): Latest | Previous

Forecast Discussion: Latest | Previous^NEW

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 (issued monthly from December 1 through May 1): Latest | Previous

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)