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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026102612_klamath_hefs_csv_daily.zip26-Oct-2026 02:20 PM PST1192K
North Coast2026102612_NorthCoast_hefs_csv_daily.zip26-Oct-2026 02:27 PM PST1125K
Russian/Napa2026102612_RussianNapa_hefs_csv_daily.zip26-Oct-2026 02:25 PM PST1566K
Upper Sacramento2026102612_UpperSacramento_hefs_csv_daily.zip26-Oct-2026 04:00 PM PST1391K
Feather/Yuba2026102612_FeatherYuba_hefs_csv_daily.zip26-Oct-2026 01:54 PM PST2192K
Cache/Putah2026102612_cacheputah_hefs_csv_daily.zip26-Oct-2026 02:32 PM PST211K
American2026102612_american_hefs_csv_daily.zip26-Oct-2026 02:18 PM PST1766K
Salinas/Pajaro2026102612_SalinasPajaro_hefs_csv_daily.zip26-Oct-2026 02:27 PM PST564K
South Bay2026102612_SouthBay_hefs_csv_daily.zip26-Oct-2026 02:20 PM PST463K
Southern California2026102612_SouthernCalifornia_hefs_csv_daily.zip26-Oct-2026 02:10 PM PST1170K
San Diego/Inland2026102612_SanDiego_Inland_hefs_csv_daily.zip26-Oct-2026 02:20 PM PST762K
Tulare2026102612_Tulare_hefs_csv_daily.zip26-Oct-2026 04:15 PM PST869K
San Joaquin2026102612_SanJoaquin_hefs_csv_daily.zip26-Oct-2026 07:24 PM PST1301K
North San Joaquin2026102612_n_sanjoaquin_hefs_csv_daily.zip26-Oct-2026 02:34 PM PST783K
East Sierra2026102612_EastSierra_hefs_csv_daily.zip26-Oct-2026 02:06 PM PST2039K
Humboldt2026102612_Humboldt_hefs_csv_daily.zip26-Oct-2026 02:34 PM PST746K
Water Supply Indices2026102612_WSI_hefs_csv_daily.zip26-Oct-2026 02:37 PM PST213K

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