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

Klamath2026092712_klamath_hefs_csv_daily.zip27-Sep-2026 08:18 AM PDT1190K
North Coast2026092712_NorthCoast_hefs_csv_daily.zip27-Sep-2026 08:20 AM PDT1125K
Russian/Napa2026092712_RussianNapa_hefs_csv_daily.zip27-Sep-2026 08:25 AM PDT1516K
Upper Sacramento2026092712_UpperSacramento_hefs_csv_daily.zip27-Sep-2026 08:13 AM PDT1400K
Feather/Yuba2026092712_FeatherYuba_hefs_csv_daily.zip27-Sep-2026 08:12 AM PDT2152K
Cache/Putah2026092712_cacheputah_hefs_csv_daily.zip27-Sep-2026 08:10 AM PDT209K
American2026092712_american_hefs_csv_daily.zip27-Sep-2026 08:11 AM PDT1759K
Salinas/Pajaro2026092712_SalinasPajaro_hefs_csv_daily.zip27-Sep-2026 08:27 AM PDT568K
South Bay2026092712_SouthBay_hefs_csv_daily.zip27-Sep-2026 08:28 AM PDT448K
Southern California2026092712_SouthernCalifornia_hefs_csv_daily.zip27-Sep-2026 08:29 AM PDT1093K
San Diego/Inland2026092712_SanDiego_Inland_hefs_csv_daily.zip27-Sep-2026 08:30 AM PDT678K
Tulare2026092712_Tulare_hefs_csv_daily.zip27-Sep-2026 08:11 AM PDT852K
San Joaquin2026092712_SanJoaquin_hefs_csv_daily.zip27-Sep-2026 08:17 AM PDT1305K
North San Joaquin2026092712_n_sanjoaquin_hefs_csv_daily.zip27-Sep-2026 08:16 AM PDT512K
East Sierra2026092712_EastSierra_hefs_csv_daily.zip27-Sep-2026 08:33 AM PDT2051K
Humboldt2026092712_Humboldt_hefs_csv_daily.zip27-Sep-2026 08:32 AM PDT742K
Water Supply Indices2026092712_WSI_hefs_csv_daily.zip27-Sep-2026 08:35 AM PDT217K

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