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

Klamath2026071512_klamath_hefs_csv_daily.zip15-Jul-2026 07:10 AM PDT1134K
North Coast2026071512_NorthCoast_hefs_csv_daily.zip15-Jul-2026 07:09 AM PDT1047K
Russian/Napa2026071512_RussianNapa_hefs_csv_daily.zip15-Jul-2026 07:10 AM PDT1368K
Upper Sacramento2026071512_UpperSacramento_hefs_csv_daily.zip15-Jul-2026 06:52 AM PDT1334K
Feather/Yuba2026071512_FeatherYuba_hefs_csv_daily.zip15-Jul-2026 06:51 AM PDT2083K
Cache/Putah2026071512_cacheputah_hefs_csv_daily.zip15-Jul-2026 06:58 AM PDT184K
American2026071512_american_hefs_csv_daily.zip15-Jul-2026 06:50 AM PDT1712K
Salinas/Pajaro2026071512_SalinasPajaro_hefs_csv_daily.zip15-Jul-2026 07:16 AM PDT529K
South Bay2026071512_SouthBay_hefs_csv_daily.zip15-Jul-2026 07:12 AM PDT409K
Southern California2026071512_SouthernCalifornia_hefs_csv_daily.zip15-Jul-2026 07:16 AM PDT892K
San Diego/Inland2026071512_SanDiego_Inland_hefs_csv_daily.zip15-Jul-2026 07:28 AM PDT655K
Tulare2026071512_Tulare_hefs_csv_daily.zip15-Jul-2026 06:58 AM PDT814K
San Joaquin2026071512_SanJoaquin_hefs_csv_daily.zip15-Jul-2026 06:51 AM PDT1266K
North San Joaquin2026071512_n_sanjoaquin_hefs_csv_daily.zip15-Jul-2026 07:06 AM PDT490K
East Sierra2026071512_EastSierra_hefs_csv_daily.zip15-Jul-2026 07:29 AM PDT1925K
Humboldt2026071512_Humboldt_hefs_csv_daily.zip15-Jul-2026 07:27 AM PDT705K
Water Supply Indices2026071512_WSI_hefs_csv_daily.zip15-Jul-2026 07:26 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

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