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: 04/02/2026 1643Z
Data ending: 04/02/2026 12Z
* All units are in thousands of acre-feet.

Station: STWN2 (Carson - Carson City, Nr 5 SE)

MONTHLY DATA

October    Obs:    3.7  Mean:    6.9  WY-to-date: Obs:    3.7 Mean:    6.9
2025       % of mean:    54% 

November   Obs:   10.2  Mean:   10.6  WY-to-date: Obs:   13.9 Mean:   17.5
2025       % of mean:    96% 

December   Obs:   20.3  Mean:   14.5  WY-to-date: Obs:   34.2 Mean:   32.0
2025       % of mean:    140% 

January    Obs:   20.6  Mean:   23.6  WY-to-date: Obs:   54.9 Mean:   55.6
2026       % of mean:    87% 

February   Obs:   24.2  Mean:   23.4  WY-to-date: Obs:   79.1 Mean:   78.8
2026       % of mean:    104% 

March      Obs:   55.1  Mean:   30.6  WY-to-date: Obs:  134.2 Mean:  109.4
2026       % of mean:    180% 

April      Obs (thru 02@12Z):    2.9    Mean:   39.8  WY-to-date: Obs:  137.1 Mean:  111.6
2026       Prob. level:      90    75    50    25    10
           Fcst Residual:    20    22    23    26    30
           Obs + Fcst:       23    25    26    29    33
           % of mean:                    66% 

May        Mean:   72.6
2026       Prob. level:      90    75    50    25    10
           Forecast:          5     9    13    20    33
           % of mean:                    18% 

June       Mean:   56.6
2026       Prob. level:      90    75    50    25    10
           Forecast:          0     0     1     6    13
           % of mean:                     2% 

July       Mean:   18.4
2026       Prob. level:      90    75    50    25    10
           Forecast:          0     0     0     0     0
           % of mean:                     0% 

August     Mean:    3.9
2026       Prob. level:      90    75    50    25    10
           Forecast:          0     0     0     0     0
           % of mean:                     0% 

September  Mean:    2.9
2026       Prob. level:      90    75    50    25    10
           Forecast:          0     0     0     0     1
           % of mean:                     1% 

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

Water Year Obs-To-Date:  137.1    Mean:  303.9
WY2026     Prob. level:      90    75    50    25    10
           Fcst Residual:    26    33    40    56    69
           Obs + Fcst:      163   171   178   193   206
           % of mean:                    58%