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: 11/10/2026 1546Z
Data ending: 11/10/2026 12Z
* All units are in thousands of acre-feet.

Station: SHDC1 (Sacramento - Shasta Dam)

MONTHLY DATA

October    Obs:  192.6  Mean:  223.2  WY-to-date: Obs:  192.6 Mean:  223.2
2026       % of mean:    86% 

November   Obs (thru 10@12Z):   62.0    Mean:  303.3  WY-to-date: Obs:  254.6 Mean:  305.8
2026       Prob. level:      90    75    50    25    10
           Fcst Residual:   141   151   173   250   393
           Obs + Fcst:      203   213   235   312   455
           % of mean:                    77% 

December   Mean:  545.0
2026       Prob. level:      90    75    50    25    10
           Forecast:        203   266   403   746  1114
           % of mean:                    74% 

January    Mean:  699.0
2027       Prob. level:      90    75    50    25    10
           Forecast:        254   347   578   981  1448
           % of mean:                    83% 

February   Mean:  810.4
2027       Prob. level:      90    75    50    25    10
           Forecast:        262   387   599  1132  1684
           % of mean:                    74% 

March      Mean:  923.4
2027       Prob. level:      90    75    50    25    10
           Forecast:        347   548   764  1251  1553
           % of mean:                    83% 

April      Mean:  656.2
2027       Prob. level:      90    75    50    25    10
           Forecast:        291   393   560   817  1247
           % of mean:                    85% 

May        Mean:  509.0
2027       Prob. level:      90    75    50    25    10
           Forecast:        239   292   393   648   881
           % of mean:                    77% 

June       Mean:  317.7
2027       Prob. level:      90    75    50    25    10
           Forecast:        182   217   273   364   485
           % of mean:                    86% 

July       Mean:  230.6
2027       Prob. level:      90    75    50    25    10
           Forecast:        165   188   214   255   288
           % of mean:                    93% 

August     Mean:  202.9
2027       Prob. level:      90    75    50    25    10
           Forecast:        157   171   200   229   258
           % of mean:                    99% 

September  Mean:  195.1
2027       Prob. level:      90    75    50    25    10
           Forecast:        158   164   196   219   244
           % of mean:                   100% 

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

Water Year Obs-To-Date:  254.6    Mean: 5615.9
WY2027     Prob. level:      90    75    50    25    10
           Fcst Residual:  2897  3489  4890  6847  8537
           Obs + Fcst:     3152  3743  5145  7102  8791
           % of mean:                    92%