National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

*** IMPORTANT ***  Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

Raw ESP Water Supply Forecast

*CAUTION: Data below is raw model output and has not been reviewed
*         by a hydrologist.

Program run: 06/21/2025 1804Z
Data ending: 06/21/2025 12Z
* All units are in thousands of acre-feet.

Station: SBRC1 (Salmon - Somes Bar)

MONTHLY DATA

October    Obs:   11.8  Mean:   20.0  WY-to-date: Obs:   11.8 Mean:   20.0
2024       % of mean:    59% 

November   Obs:  119.6  Mean:   54.4  WY-to-date: Obs:  131.5 Mean:   74.4
2024       % of mean:    220% 

December   Obs:  314.9  Mean:  139.8  WY-to-date: Obs:  446.4 Mean:  214.1
2024       % of mean:    225% 

January    Obs:  326.3  Mean:  177.7  WY-to-date: Obs:  772.7 Mean:  391.8
2025       % of mean:    184% 

February   Obs:  313.5  Mean:  168.7  WY-to-date: Obs: 1086.2 Mean:  559.0
2025       % of mean:    186% 

March      Obs:  276.8  Mean:  190.2  WY-to-date: Obs: 1363.0 Mean:  749.1
2025       % of mean:    146% 

April      Obs:  315.1  Mean:  180.5  WY-to-date: Obs: 1678.0 Mean:  929.7
2025       % of mean:    175% 

May        Obs:  206.5  Mean:  172.8  WY-to-date: Obs: 1884.5 Mean: 1102.4
2025       % of mean:    120% 

June       Obs (thru 21@12Z):   73.4    Mean:   98.6  WY-to-date: Obs: 1957.9 Mean: 1182.4
2025       Prob. level:      90    75    50    25    10
           Fcst Residual:    15    15    15    15    15
           Obs + Fcst:       89    89    89    89    89
           % of mean:                    90% 

July       Mean:   35.5
2025       Prob. level:      90    75    50    25    10
           Forecast:         31    31    31    31    31
           % of mean:                    87% 

August     Mean:   15.8
2025       Prob. level:      90    75    50    25    10
           Forecast:         18    18    18    18    18
           % of mean:                   113% 

September  Mean:   11.8
2025       Prob. level:      90    75    50    25    10
           Forecast:         12    12    12    12    13
           % of mean:                   101% 

-------------------------------------------------------

Water Year Obs-To-Date: 1957.9    Mean: 1265.7
WY2025     Prob. level:      90    75    50    25    10
           Fcst Residual:    75    75    76    76    77
           Obs + Fcst:     2033  2033  2034  2034  2035
           % of mean:                   161%