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

Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026060112_klamath_hefs_csv_daily.zip01-Jun-2026 07:29 AM PDT1095K
North Coast2026060112_NorthCoast_hefs_csv_daily.zip01-Jun-2026 07:30 AM PDT1028K
Russian/Napa2026060112_RussianNapa_hefs_csv_daily.zip01-Jun-2026 07:31 AM PDT1250K
Upper Sacramento2026060112_UpperSacramento_hefs_csv_daily.zip01-Jun-2026 07:03 AM PDT1302K
Feather/Yuba2026060112_FeatherYuba_hefs_csv_daily.zip01-Jun-2026 07:10 AM PDT2004K
Cache/Putah2026060112_cacheputah_hefs_csv_daily.zip01-Jun-2026 07:27 AM PDT185K
American2026060112_american_hefs_csv_daily.zip01-Jun-2026 07:27 AM PDT1662K
Salinas/Pajaro2026060112_SalinasPajaro_hefs_csv_daily.zip01-Jun-2026 07:41 AM PDT492K
South Bay2026060112_SouthBay_hefs_csv_daily.zip01-Jun-2026 07:42 AM PDT376K
Southern California2026060112_SouthernCalifornia_hefs_csv_daily.zip01-Jun-2026 07:20 AM PDT844K
San Diego/Inland2026060112_SanDiego_Inland_hefs_csv_daily.zip01-Jun-2026 07:20 AM PDT601K
Tulare2026060112_Tulare_hefs_csv_daily.zip01-Jun-2026 07:27 AM PDT786K
San Joaquin2026060112_SanJoaquin_hefs_csv_daily.zip01-Jun-2026 07:05 AM PDT1243K
North San Joaquin2026060112_n_sanjoaquin_hefs_csv_daily.zip01-Jun-2026 07:26 AM PDT459K
East Sierra2026060112_EastSierra_hefs_csv_daily.zip01-Jun-2026 07:42 AM PDT1839K
Humboldt2026060112_Humboldt_hefs_csv_daily.zip01-Jun-2026 07:40 AM PDT618K
Water Supply Indices2026060112_WSI_hefs_csv_daily.zip01-Jun-2026 07:44 AM PDT213K

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

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Forecast Groups Archive

Forecast Group

Start Date

End Date