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



SAN JOAQUIN VALLEY - WATER RESOURCES INDEX (VNSC0)
San Joaquin River - Millerton Reservoir (FRAC1)
Merced River - Exchequer Reservoir (EXQC1)
Tuolumne River - New Don Pedro Reservoir (NDPC1)
Stanislaus River - New Melones Reservoir (NMSC1)
Issuance Time: May 19, 2026 at 8:46 AM PDT
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Flow data on this product are unregulated / full natural flow.
2026 Water Year Accumulated Volume PlotCSV Ensemble Files (Data in kcfs):  Forecast Group

Tabular Monthly Volume Accumulation (1000s of Acre-Feet)
Probability Nov 1
2025
Dec 1
2025
Jan 1
2026
Feb 1
2026
Mar 1
2026
Apr 1
2026
May 1
2026
Jun 1
2026
Jul 1
2026
Aug 1
2026
Sep 1
2026
Oct 1
2026
10% -- -- -- -- -- -- -- 4230 4670 4830 4890 4930
25% -- -- -- -- -- -- -- 4200 4610 4740 4790 4830
50%
(Median)
-- -- -- -- -- -- -- 4190 4570 4690 4740 4770
75% -- -- -- -- -- -- -- 4180 4550 4660 4710 4740
90% -- -- -- -- -- -- -- 4170 4530 4640 4690 4720

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