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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

Klamath2026080512_klamath_hefs_csv_hourly.zip05-Aug-2026 08:03 AM PDT1022K
North Coast2026080512_NorthCoast_hefs_csv_hourly.zip05-Aug-2026 08:09 AM PDT265K
Russian/Napa2026080512_RussianNapa_hefs_csv_hourly.zip05-Aug-2026 08:09 AM PDT228K
Upper Sacramento2026080512_UpperSacramento_hefs_csv_hourly.zip05-Aug-2026 07:50 AM PDT1284K
Feather/Yuba2026080512_FeatherYuba_hefs_csv_hourly.zip05-Aug-2026 07:50 AM PDT926K
Cache/Putah2026080512_cacheputah_hefs_csv_hourly.zip05-Aug-2026 07:48 AM PDT72K
American2026080512_american_hefs_csv_hourly.zip05-Aug-2026 07:48 AM PDT1190K
Lower Sacramento2026080512_LowerSacramento_hefs_csv_hourly.zip05-Aug-2026 08:21 AM PDT108K
Salinas/Pajaro2026080512_SalinasPajaro_hefs_csv_hourly.zip05-Aug-2026 08:18 AM PDT68K
South Bay2026080512_SouthBay_hefs_csv_hourly.zip05-Aug-2026 08:17 AM PDT105K
Southern California2026080512_SouthernCalifornia_hefs_csv_hourly.zip05-Aug-2026 08:19 AM PDT277K
San Diego/Inland2026080512_SanDiego_Inland_hefs_csv_hourly.zip05-Aug-2026 08:19 AM PDT153K
Tulare2026080512_Tulare_hefs_csv_hourly.zip05-Aug-2026 07:48 AM PDT485K
San Joaquin2026080512_SanJoaquin_hefs_csv_hourly.zip05-Aug-2026 08:04 AM PDT822K
North San Joaquin2026080512_n_sanjoaquin_hefs_csv_hourly.zip05-Aug-2026 08:01 AM PDT168K
East Sierra2026080512_EastSierra_hefs_csv_hourly.zip05-Aug-2026 08:22 AM PDT941K
Humboldt2026080512_Humboldt_hefs_csv_hourly.zip05-Aug-2026 08:22 AM PDT145K

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)