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: 06/16/2025 1408Z
Data ending: 06/16/2025 12Z
* All units are in thousands of acre-feet.

Station: BRGC1 (Van Duzen - Bridgeville, Nr 5 W)

MONTHLY DATA

October    Obs:    0.5  Mean:    5.7  WY-to-date: Obs:    0.5 Mean:    5.7
2024       % of mean:    9% 

November   Obs:  123.6  Mean:   36.5  WY-to-date: Obs:  124.1 Mean:   42.2
2024       % of mean:    339% 

December   Obs:  153.7  Mean:  105.8  WY-to-date: Obs:  277.9 Mean:  148.0
2024       % of mean:    145% 

January    Obs:   79.4  Mean:  118.1  WY-to-date: Obs:  357.3 Mean:  266.0
2025       % of mean:    67% 

February   Obs:  175.3  Mean:  101.6  WY-to-date: Obs:  532.6 Mean:  366.8
2025       % of mean:    173% 

March      Obs:  120.3  Mean:  103.1  WY-to-date: Obs:  652.9 Mean:  469.9
2025       % of mean:    117% 

April      Obs:   79.9  Mean:   57.2  WY-to-date: Obs:  732.8 Mean:  527.1
2025       % of mean:    140% 

May        Obs:   15.0  Mean:   26.7  WY-to-date: Obs:  747.8 Mean:  553.8
2025       % of mean:    56% 

June       Obs (thru 16@12Z):    4.0    Mean:    9.2  WY-to-date: Obs:  751.8 Mean:  561.0
2025       Prob. level:      90    75    50    25    10
           Fcst Residual:     2     2     2     2     2
           Obs + Fcst:        6     6     6     6     6
           % of mean:                    62% 

July       Mean:    2.2
2025       Prob. level:      90    75    50    25    10
           Forecast:          2     2     2     2     2
           % of mean:                    82% 

August     Mean:    0.9
2025       Prob. level:      90    75    50    25    10
           Forecast:          1     1     1     1     1
           % of mean:                    74% 

September  Mean:    0.9
2025       Prob. level:      90    75    50    25    10
           Forecast:          0     0     0     0     1
           % of mean:                    21% 

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

Water Year Obs-To-Date:  751.8    Mean:  567.7
WY2025     Prob. level:      90    75    50    25    10
           Fcst Residual:     4     4     4     5     5
           Obs + Fcst:      756   756   756   757   757
           % of mean:                   133%