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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052412_klamath_hefs_csv_daily.zip24-May-2026 07:22 AM PDT1124K
North Coast2026052412_NorthCoast_hefs_csv_daily.zip24-May-2026 07:21 AM PDT1045K
Russian/Napa2026052412_RussianNapa_hefs_csv_daily.zip24-May-2026 07:42 AM PDT1230K
Upper Sacramento2026052412_UpperSacramento_hefs_csv_daily.zip24-May-2026 06:58 AM PDT1350K
Feather/Yuba2026052412_FeatherYuba_hefs_csv_daily.zip24-May-2026 06:58 AM PDT2077K
Cache/Putah2026052412_cacheputah_hefs_csv_daily.zip24-May-2026 07:05 AM PDT180K
American2026052412_american_hefs_csv_daily.zip24-May-2026 06:56 AM PDT1713K
Salinas/Pajaro2026052412_SalinasPajaro_hefs_csv_daily.zip24-May-2026 07:32 AM PDT482K
South Bay2026052412_SouthBay_hefs_csv_daily.zip24-May-2026 07:33 AM PDT373K
Southern California2026052412_SouthernCalifornia_hefs_csv_daily.zip24-May-2026 07:33 AM PDT836K
San Diego/Inland2026052412_SanDiego_Inland_hefs_csv_daily.zip24-May-2026 07:33 AM PDT590K
Tulare2026052412_Tulare_hefs_csv_daily.zip24-May-2026 07:05 AM PDT790K
San Joaquin2026052412_SanJoaquin_hefs_csv_daily.zip24-May-2026 07:11 AM PDT1251K
North San Joaquin2026052412_n_sanjoaquin_hefs_csv_daily.zip24-May-2026 07:14 AM PDT474K
East Sierra2026052412_EastSierra_hefs_csv_daily.zip24-May-2026 07:18 AM PDT1892K
Humboldt2026052412_Humboldt_hefs_csv_daily.zip24-May-2026 07:15 AM PDT636K
Water Supply Indices2026052412_WSI_hefs_csv_daily.zip24-May-2026 07:13 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