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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

Klamath2025113012_klamath_hefs_csv_hourly.zip30-Nov-2025 08:14 AM PST2003K
North Coast2025113012_NorthCoast_hefs_csv_hourly.zip30-Nov-2025 08:12 AM PST1209K
Russian/Napa2025113012_RussianNapa_hefs_csv_hourly.zip30-Nov-2025 08:14 AM PST2358K
Upper Sacramento2025113012_UpperSacramento_hefs_csv_hourly.zip30-Nov-2025 07:48 AM PST3177K
Feather/Yuba2025113012_FeatherYuba_hefs_csv_hourly.zip30-Nov-2025 07:50 AM PST3499K
Cache/Putah2025113012_cacheputah_hefs_csv_hourly.zip30-Nov-2025 07:52 AM PST784K
American2025113012_american_hefs_csv_hourly.zip30-Nov-2025 07:52 AM PST2870K
Lower Sacramento2025113012_LowerSacramento_hefs_csv_hourly.zip30-Nov-2025 07:57 AM PST244K
Salinas/Pajaro2025113012_SalinasPajaro_hefs_csv_hourly.zip30-Nov-2025 08:20 AM PST955K
South Bay2025113012_SouthBay_hefs_csv_hourly.zip30-Nov-2025 08:17 AM PST1449K
Southern California2025113012_SouthernCalifornia_hefs_csv_hourly.zip30-Nov-2025 08:25 AM PST1109K
San Diego/Inland2025113012_SanDiego_Inland_hefs_csv_hourly.zip30-Nov-2025 08:24 AM PST605K
Tulare2025113012_Tulare_hefs_csv_hourly.zip30-Nov-2025 07:58 AM PST1050K
San Joaquin2025113012_SanJoaquin_hefs_csv_hourly.zip30-Nov-2025 08:08 AM PST2431K
North San Joaquin2025113012_n_sanjoaquin_hefs_csv_hourly.zip30-Nov-2025 08:05 AM PST697K
East Sierra2025113012_EastSierra_hefs_csv_hourly.zip30-Nov-2025 08:31 AM PST2990K
Humboldt2025113012_Humboldt_hefs_csv_hourly.zip30-Nov-2025 08:29 AM PST577K

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)