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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

Klamath2025112312_klamath_hefs_csv_hourly.zip23-Nov-2025 07:58 AM PST2075K
North Coast2025112312_NorthCoast_hefs_csv_hourly.zip23-Nov-2025 07:59 AM PST1194K
Russian/Napa2025112312_RussianNapa_hefs_csv_hourly.zip23-Nov-2025 08:06 AM PST2075K
Upper Sacramento2025112312_UpperSacramento_hefs_csv_hourly.zip23-Nov-2025 07:15 AM PST3107K
Feather/Yuba2025112312_FeatherYuba_hefs_csv_hourly.zip23-Nov-2025 07:21 AM PST3469K
Cache/Putah2025112312_cacheputah_hefs_csv_hourly.zip23-Nov-2025 08:10 AM PST713K
American2025112312_american_hefs_csv_hourly.zip23-Nov-2025 07:53 AM PST2852K
Lower Sacramento2025112312_LowerSacramento_hefs_csv_hourly.zip23-Nov-2025 08:13 AM PST263K
Salinas/Pajaro2025112312_SalinasPajaro_hefs_csv_hourly.zip23-Nov-2025 08:00 AM PST961K
South Bay2025112312_SouthBay_hefs_csv_hourly.zip23-Nov-2025 07:57 AM PST1383K
Southern California2025112312_SouthernCalifornia_hefs_csv_hourly.zip23-Nov-2025 07:48 AM PST1389K
San Diego/Inland2025112312_SanDiego_Inland_hefs_csv_hourly.zip23-Nov-2025 07:52 AM PST722K
Tulare2025112312_Tulare_hefs_csv_hourly.zip23-Nov-2025 08:08 AM PST1059K
San Joaquin2025112312_SanJoaquin_hefs_csv_hourly.zip23-Nov-2025 07:21 AM PST2445K
North San Joaquin2025112312_n_sanjoaquin_hefs_csv_hourly.zip23-Nov-2025 08:11 AM PST697K
East Sierra2025112312_EastSierra_hefs_csv_hourly.zip23-Nov-2025 08:00 AM PST3002K
Humboldt2025112312_Humboldt_hefs_csv_hourly.zip23-Nov-2025 08:13 AM PST504K

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)