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.

Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2025061212_klamath_hefs_csv_daily.zip12-Jun-2025 10:43 AM PDT1149K
North Coast2025061212_NorthCoast_hefs_csv_daily.zip12-Jun-2025 10:40 AM PDT1023K
Russian/Napa2025061212_RussianNapa_hefs_csv_daily.zip12-Jun-2025 09:32 AM PDT1265K
Upper Sacramento2025061212_UpperSacramento_hefs_csv_daily.zip12-Jun-2025 09:12 AM PDT1274K
Feather/Yuba2025061212_FeatherYuba_hefs_csv_daily.zip12-Jun-2025 09:10 AM PDT2008K
Cache/Putah2025061212_cacheputah_hefs_csv_daily.zip12-Jun-2025 08:57 AM PDT175K
American2025061212_american_hefs_csv_daily.zip12-Jun-2025 09:12 AM PDT1649K
Salinas/Pajaro2025061212_SalinasPajaro_hefs_csv_daily.zip12-Jun-2025 09:28 AM PDT473K
South Bay2025061212_SouthBay_hefs_csv_daily.zip12-Jun-2025 09:49 AM PDT378K
Southern California2025061212_SouthernCalifornia_hefs_csv_daily.zip12-Jun-2025 09:50 AM PDT786K
San Diego/Inland2025061212_SanDiego_Inland_hefs_csv_daily.zip12-Jun-2025 09:50 AM PDT615K
Tulare2025061212_Tulare_hefs_csv_daily.zip12-Jun-2025 09:12 AM PDT807K
San Joaquin2025061212_SanJoaquin_hefs_csv_daily.zip12-Jun-2025 10:49 AM PDT1213K
North San Joaquin2025061212_n_sanjoaquin_hefs_csv_daily.zip12-Jun-2025 09:19 AM PDT449K
East Sierra2025061212_EastSierra_hefs_csv_daily.zip12-Jun-2025 09:56 AM PDT1850K
Humboldt2025061212_Humboldt_hefs_csv_daily.zip12-Jun-2025 09:23 AM PDT748K
Water Supply Indices2025061212_WSI_hefs_csv_daily.zip12-Jun-2025 09:57 AM PDT209K

Note 1: Data represented in the files are in kcfs (thousands of cubic feet per second).

Note 2: Each location includes 44 ensemble members with the first column starting with year 1980 and the last column ending with year 2023. Each historical year is more meaningful beyond the first couple weeks when climatology drives the spread in the ensemble.

Note 3: On October 20, 2022 the Central Coast forecast group was split into two forecast groups (Salinas/Pajaro and South Bay) and the Southern California forecast group was split into two forecast groups (Southern California and San Diego/Inland).

Individual Points

Enter desired location(s) below (some older browsers may allow only one file download at a time):

Forecast Groups Archive

Forecast Group

Start Date

End Date