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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

Klamath2025112712_klamath_hefs_csv_hourly.zip27-Nov-2025 07:07 AM PST1866K
North Coast2025112712_NorthCoast_hefs_csv_hourly.zip27-Nov-2025 07:10 AM PST1105K
Russian/Napa2025112712_RussianNapa_hefs_csv_hourly.zip27-Nov-2025 07:33 AM PST2013K
Upper Sacramento2025112712_UpperSacramento_hefs_csv_hourly.zip27-Nov-2025 07:00 AM PST2955K
Feather/Yuba2025112712_FeatherYuba_hefs_csv_hourly.zip27-Nov-2025 06:58 AM PST3232K
Cache/Putah2025112712_cacheputah_hefs_csv_hourly.zip27-Nov-2025 06:55 AM PST676K
American2025112712_american_hefs_csv_hourly.zip27-Nov-2025 06:58 AM PST2728K
Lower Sacramento2025112712_LowerSacramento_hefs_csv_hourly.zip27-Nov-2025 07:30 AM PST213K
Salinas/Pajaro2025112712_SalinasPajaro_hefs_csv_hourly.zip27-Nov-2025 07:41 AM PST897K
South Bay2025112712_SouthBay_hefs_csv_hourly.zip27-Nov-2025 07:34 AM PST1264K
Southern California2025112712_SouthernCalifornia_hefs_csv_hourly.zip27-Nov-2025 07:43 AM PST1371K
San Diego/Inland2025112712_SanDiego_Inland_hefs_csv_hourly.zip27-Nov-2025 07:41 AM PST670K
Tulare2025112712_Tulare_hefs_csv_hourly.zip27-Nov-2025 07:04 AM PST1041K
San Joaquin2025112712_SanJoaquin_hefs_csv_hourly.zip27-Nov-2025 07:07 AM PST2324K
North San Joaquin2025112712_n_sanjoaquin_hefs_csv_hourly.zip27-Nov-2025 07:04 AM PST636K
East Sierra2025112712_EastSierra_hefs_csv_hourly.zip27-Nov-2025 07:34 AM PST2938K
Humboldt2025112712_Humboldt_hefs_csv_hourly.zip27-Nov-2025 07:32 AM PST507K

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)