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: 05/05/2025 1608Z
Data ending: 05/05/2025 12Z
* All units are in thousands of acre-feet.

Station: HAPC1 (Indian Ck - Happy Camp, Nr)

MONTHLY DATA

October    Obs:    3.5  Mean:    4.8  WY-to-date: Obs:    3.5 Mean:    4.8
2024       % of mean:    73% 

November   Obs:   26.7  Mean:   14.4  WY-to-date: Obs:   30.2 Mean:   19.2
2024       % of mean:    185% 

December   Obs:   78.0  Mean:   36.5  WY-to-date: Obs:  108.3 Mean:   55.7
2024       % of mean:    214% 

January    Obs:   63.2  Mean:   44.3  WY-to-date: Obs:  171.5 Mean:  100.0
2025       % of mean:    143% 

February   Obs:   57.1  Mean:   42.2  WY-to-date: Obs:  228.6 Mean:  141.9
2025       % of mean:    135% 

March      Obs:   71.4  Mean:   48.0  WY-to-date: Obs:  300.0 Mean:  189.9
2025       % of mean:    149% 

April      Obs:   66.0  Mean:   40.4  WY-to-date: Obs:  366.0 Mean:  230.4
2025       % of mean:    163% 

May        Obs (thru 05@12Z):    7.4    Mean:   31.5  WY-to-date: Obs:  373.4 Mean:  237.3
2025       Prob. level:      90    75    50    25    10
           Fcst Residual:    24    24    25    28    31
           Obs + Fcst:       31    32    33    35    38
           % of mean:                   104% 

June       Mean:   14.9
2025       Prob. level:      90    75    50    25    10
           Forecast:         11    12    13    14    18
           % of mean:                    86% 

July       Mean:    6.0
2025       Prob. level:      90    75    50    25    10
           Forecast:          6     6     6     7     8
           % of mean:                   108% 

August     Mean:    3.5
2025       Prob. level:      90    75    50    25    10
           Forecast:          4     4     4     4     6
           % of mean:                   118% 

September  Mean:    2.8
2025       Prob. level:      90    75    50    25    10
           Forecast:          3     3     3     3     5
           % of mean:                   101% 

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

Water Year Obs-To-Date:  373.4    Mean:  289.5
WY2025     Prob. level:      90    75    50    25    10
           Fcst Residual:    50    51    52    56    64
           Obs + Fcst:      423   424   426   429   437
           % of mean:                   147%