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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

Klamath2026103012_klamath_hefs_csv_hourly.zip30-Oct-2026 03:31 PM PST1909K
North Coast2026103012_NorthCoast_hefs_csv_hourly.zip30-Oct-2026 03:31 PM PST1117K
Russian/Napa2026103012_RussianNapa_hefs_csv_hourly.zip30-Oct-2026 03:35 PM PST1786K
Upper Sacramento2026103012_UpperSacramento_hefs_csv_hourly.zip30-Oct-2026 04:08 PM PST3028K
Feather/Yuba2026103012_FeatherYuba_hefs_csv_hourly.zip30-Oct-2026 04:07 PM PST3179K
Cache/Putah2026103012_cacheputah_hefs_csv_hourly.zip30-Oct-2026 03:16 PM PST479K
American2026103012_american_hefs_csv_hourly.zip30-Oct-2026 03:07 PM PST2486K
Lower Sacramento2026103012_LowerSacramento_hefs_csv_hourly.zip30-Oct-2026 03:51 PM PST274K
Salinas/Pajaro2026103012_SalinasPajaro_hefs_csv_hourly.zip30-Oct-2026 03:42 PM PST475K
South Bay2026103012_SouthBay_hefs_csv_hourly.zip30-Oct-2026 03:39 PM PST860K
Southern California2026103012_SouthernCalifornia_hefs_csv_hourly.zip30-Oct-2026 03:48 PM PST937K
San Diego/Inland2026103012_SanDiego_Inland_hefs_csv_hourly.zip30-Oct-2026 03:48 PM PST633K
Tulare2026103012_Tulare_hefs_csv_hourly.zip30-Oct-2026 03:17 PM PST855K
San Joaquin2026103012_SanJoaquin_hefs_csv_hourly.zip30-Oct-2026 03:30 PM PST1975K
North San Joaquin2026103012_n_sanjoaquin_hefs_csv_hourly.zip30-Oct-2026 03:29 PM PST842K
East Sierra2026103012_EastSierra_hefs_csv_hourly.zip30-Oct-2026 03:49 PM PST2664K
Humboldt2026103012_Humboldt_hefs_csv_hourly.zip30-Oct-2026 03:52 PM PST521K

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 (comma separated) (some older browsers may allow only one file download at a time):


Forecast Groups Archive


Forecast Group


Start Date

Start Hour
(Forecast Cycle)


End Date

End Hour
(Forecast Cycle)