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

Raw ESP Water Supply Forecast

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

Program run: 07/20/2025 1459Z
Data ending: 07/20/2025 12Z
* All units are in thousands of acre-feet.

Station: ISAC1 (Kern - Isabella Dam, Blo)

MONTHLY DATA

October    Obs:   17.4  Mean:   16.9  WY-to-date: Obs:   17.4 Mean:   16.9
2024       % of mean:    103% 

November   Obs:   20.8  Mean:   19.9  WY-to-date: Obs:   38.1 Mean:   36.8
2024       % of mean:    104% 

December   Obs:   27.7  Mean:   25.6  WY-to-date: Obs:   65.8 Mean:   62.4
2024       % of mean:    108% 

January    Obs:   24.0  Mean:   40.5  WY-to-date: Obs:   89.8 Mean:  102.9
2025       % of mean:    59% 

February   Obs:   47.7  Mean:   45.3  WY-to-date: Obs:  137.5 Mean:  147.8
2025       % of mean:    105% 

March      Obs:   68.2  Mean:   73.3  WY-to-date: Obs:  205.7 Mean:  221.0
2025       % of mean:    93% 

April      Obs:  100.8  Mean:  101.4  WY-to-date: Obs:  306.5 Mean:  322.5
2025       % of mean:    99% 

May        Obs:  125.2  Mean:  155.8  WY-to-date: Obs:  431.7 Mean:  478.3
2025       % of mean:    80% 

June       Obs:   87.8  Mean:  134.1  WY-to-date: Obs:  519.5 Mean:  612.3
2025       % of mean:    65% 

July       Obs (thru 20@12Z):   24.8    Mean:   73.3  WY-to-date: Obs:  544.3 Mean:  666.8
2025       Prob. level:      90    75    50    25    10
           Fcst Residual:     9     9     9     9    10
           Obs + Fcst:       34    34    34    34    35
           % of mean:                    46% 

August     Mean:   32.3
2025       Prob. level:      90    75    50    25    10
           Forecast:         17    17    17    17    18
           % of mean:                    53% 

September  Mean:   18.9
2025       Prob. level:      90    75    50    25    10
           Forecast:         13    13    13    14    14
           % of mean:                    70% 

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

Water Year Obs-To-Date:  544.3    Mean:  737.3
WY2025     Prob. level:      90    75    50    25    10
           Fcst Residual:    39    39    39    40    42
           Obs + Fcst:      583   583   583   584   587
           % of mean:                    79%