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Short Range Hourly Ensemble CSV File Download

Forecast Groups

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Forecast Group

Filename

Date/Time Last Modified

Size

ID Help Doc

Klamath2025112212_klamath_hefs_csv_hourly.zip22-Nov-2025 07:57 AM PST2140K
North Coast2025112212_NorthCoast_hefs_csv_hourly.zip22-Nov-2025 08:05 AM PST1220K
Russian/Napa2025112212_RussianNapa_hefs_csv_hourly.zip22-Nov-2025 08:09 AM PST2061K
Upper Sacramento2025112212_UpperSacramento_hefs_csv_hourly.zip22-Nov-2025 07:47 AM PST3248K
Feather/Yuba2025112212_FeatherYuba_hefs_csv_hourly.zip22-Nov-2025 07:49 AM PST3586K
Cache/Putah2025112212_cacheputah_hefs_csv_hourly.zip22-Nov-2025 07:53 AM PST689K
American2025112212_american_hefs_csv_hourly.zip22-Nov-2025 07:54 AM PST2883K
Lower Sacramento2025112212_LowerSacramento_hefs_csv_hourly.zip22-Nov-2025 08:17 AM PST279K
Salinas/Pajaro2025112212_SalinasPajaro_hefs_csv_hourly.zip22-Nov-2025 08:17 AM PST879K
South Bay2025112212_SouthBay_hefs_csv_hourly.zip22-Nov-2025 08:16 AM PST1310K
Southern California2025112212_SouthernCalifornia_hefs_csv_hourly.zip22-Nov-2025 08:17 AM PST1386K
San Diego/Inland2025112212_SanDiego_Inland_hefs_csv_hourly.zip22-Nov-2025 08:14 AM PST667K
Tulare2025112212_Tulare_hefs_csv_hourly.zip22-Nov-2025 07:53 AM PST1051K
San Joaquin2025112212_SanJoaquin_hefs_csv_hourly.zip22-Nov-2025 07:46 AM PST2365K
North San Joaquin2025112212_n_sanjoaquin_hefs_csv_hourly.zip22-Nov-2025 07:53 AM PST690K
East Sierra2025112212_EastSierra_hefs_csv_hourly.zip22-Nov-2025 08:15 AM PST3024K
Humboldt2025112212_Humboldt_hefs_csv_hourly.zip22-Nov-2025 08:18 AM PST499K

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

Start Hour
(Forecast Cycle)


End Date

End Hour
(Forecast Cycle)