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: 06/07/2025 1602Z
Data ending: 06/07/2025 12Z
* All units are in thousands of acre-feet.

Station: AKYC1 (Sf American - Kyburz, Nr)

MONTHLY DATA

October    Obs:    1.8  Mean:    3.5  WY-to-date: Obs:    1.8 Mean:    3.5
2024       % of mean:    51% 

November   Obs:    3.3  Mean:    4.9  WY-to-date: Obs:    5.1 Mean:    8.4
2024       % of mean:    67% 

December   Obs:    8.5  Mean:    9.7  WY-to-date: Obs:   13.6 Mean:   18.1
2024       % of mean:    88% 

January    Obs:    8.1  Mean:   14.9  WY-to-date: Obs:   21.6 Mean:   33.0
2025       % of mean:    54% 

February   Obs:   30.8  Mean:   18.0  WY-to-date: Obs:   52.5 Mean:   50.9
2025       % of mean:    171% 

March      Obs:   33.8  Mean:   30.1  WY-to-date: Obs:   86.3 Mean:   81.0
2025       % of mean:    112% 

April      Obs:   68.0  Mean:   53.0  WY-to-date: Obs:  154.3 Mean:  134.0
2025       % of mean:    128% 

May        Obs:   74.4  Mean:   80.6  WY-to-date: Obs:  228.6 Mean:  214.7
2025       % of mean:    92% 

June       Obs (thru 07@12Z):   11.3    Mean:   54.0  WY-to-date: Obs:  240.0 Mean:  231.7
2025       Prob. level:      90    75    50    25    10
           Fcst Residual:    13    14    15    17    19
           Obs + Fcst:       24    25    26    28    31
           % of mean:                    49% 

July       Mean:   16.6
2025       Prob. level:      90    75    50    25    10
           Forecast:          5     5     5     6     6
           % of mean:                    32% 

August     Mean:    3.8
2025       Prob. level:      90    75    50    25    10
           Forecast:          2     2     2     2     2
           % of mean:                    54% 

September  Mean:    2.2
2025       Prob. level:      90    75    50    25    10
           Forecast:          1     1     1     2     3
           % of mean:                    60% 

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

Water Year Obs-To-Date:  240.0    Mean:  291.3
WY2025     Prob. level:      90    75    50    25    10
           Fcst Residual:    22    22    24    27    29
           Obs + Fcst:      262   262   264   267   269
           % of mean:                    91%