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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

Klamath2025112912_klamath_hefs_csv_hourly.zip29-Nov-2025 08:01 AM PST1917K
North Coast2025112912_NorthCoast_hefs_csv_hourly.zip29-Nov-2025 07:59 AM PST1116K
Russian/Napa2025112912_RussianNapa_hefs_csv_hourly.zip29-Nov-2025 08:02 AM PST2012K
Upper Sacramento2025112912_UpperSacramento_hefs_csv_hourly.zip29-Nov-2025 07:25 AM PST2905K
Feather/Yuba2025112912_FeatherYuba_hefs_csv_hourly.zip29-Nov-2025 07:36 AM PST3125K
Cache/Putah2025112912_cacheputah_hefs_csv_hourly.zip29-Nov-2025 07:39 AM PST662K
American2025112912_american_hefs_csv_hourly.zip29-Nov-2025 07:39 AM PST2697K
Lower Sacramento2025112912_LowerSacramento_hefs_csv_hourly.zip29-Nov-2025 07:41 AM PST189K
Salinas/Pajaro2025112912_SalinasPajaro_hefs_csv_hourly.zip29-Nov-2025 08:14 AM PST763K
South Bay2025112912_SouthBay_hefs_csv_hourly.zip29-Nov-2025 08:08 AM PST1165K
Southern California2025112912_SouthernCalifornia_hefs_csv_hourly.zip29-Nov-2025 08:24 AM PST1124K
San Diego/Inland2025112912_SanDiego_Inland_hefs_csv_hourly.zip29-Nov-2025 08:22 AM PST655K
Tulare2025112912_Tulare_hefs_csv_hourly.zip29-Nov-2025 07:46 AM PST1008K
San Joaquin2025112912_SanJoaquin_hefs_csv_hourly.zip29-Nov-2025 07:52 AM PST2160K
North San Joaquin2025112912_n_sanjoaquin_hefs_csv_hourly.zip29-Nov-2025 07:51 AM PST602K
East Sierra2025112912_EastSierra_hefs_csv_hourly.zip29-Nov-2025 08:26 AM PST2857K
Humboldt2025112912_Humboldt_hefs_csv_hourly.zip29-Nov-2025 08:23 AM PST553K

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)