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: 06/08/2025 1636Z
Data ending: 06/08/2025 12Z
* All units are in thousands of acre-feet.

Station: UNVC1 (Silver Ck - Union Valley)

MONTHLY DATA

October    Obs:    0.9  Mean:    2.2  WY-to-date: Obs:    0.9 Mean:    2.2
2024       % of mean:    42% 

November   Obs:    1.1  Mean:    6.8  WY-to-date: Obs:    2.0 Mean:    8.9
2024       % of mean:    17% 

December   Obs:    7.1  Mean:   11.1  WY-to-date: Obs:    9.2 Mean:   20.0
2024       % of mean:    65% 

January    Obs:    4.6  Mean:   15.6  WY-to-date: Obs:   13.8 Mean:   35.6
2025       % of mean:    30% 

February   Obs:   25.2  Mean:   16.9  WY-to-date: Obs:   38.9 Mean:   52.4
2025       % of mean:    149% 

March      Obs:   19.9  Mean:   24.0  WY-to-date: Obs:   58.8 Mean:   76.4
2025       % of mean:    83% 

April      Obs:   33.6  Mean:   31.7  WY-to-date: Obs:   92.4 Mean:  108.2
2025       % of mean:    106% 

May        Obs:   29.8  Mean:   38.1  WY-to-date: Obs:  122.2 Mean:  146.3
2025       % of mean:    78% 

June       Obs (thru 08@12Z):    3.6    Mean:   21.4  WY-to-date: Obs:  125.7 Mean:  154.0
2025       Prob. level:      90    75    50    25    10
           Fcst Residual:     3     3     3     3     3
           Obs + Fcst:        7     7     7     7     7
           % of mean:                    31% 

July       Mean:    5.3
2025       Prob. level:      90    75    50    25    10
           Forecast:          2     2     2     2     2
           % of mean:                    31% 

August     Mean:    0.9
2025       Prob. level:      90    75    50    25    10
           Forecast:          1     1     1     1     1
           % of mean:                    78% 

September  Mean:    0.6
2025       Prob. level:      90    75    50    25    10
           Forecast:          0     0     1     1     1
           % of mean:                    93% 

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

Water Year Obs-To-Date:  125.7    Mean:  174.6
WY2025     Prob. level:      90    75    50    25    10
           Fcst Residual:     6     6     6     7     7
           Obs + Fcst:      132   132   132   132   133
           % of mean:                    76%