National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026040212_klamath_hefs_csv_daily.zip02-Apr-2026 08:58 AM PDT1178K
North Coast2026040212_NorthCoast_hefs_csv_daily.zip02-Apr-2026 09:11 AM PDT1132K
Russian/Napa2026040212_RussianNapa_hefs_csv_daily.zip02-Apr-2026 09:01 AM PDT1315K
Upper Sacramento2026040212_UpperSacramento_hefs_csv_daily.zip02-Apr-2026 08:38 AM PDT1398K
Feather/Yuba2026040212_FeatherYuba_hefs_csv_daily.zip02-Apr-2026 08:48 AM PDT2126K
Cache/Putah2026040212_cacheputah_hefs_csv_daily.zip02-Apr-2026 08:52 AM PDT203K
American2026040212_american_hefs_csv_daily.zip02-Apr-2026 08:52 AM PDT1756K
Salinas/Pajaro2026040212_SalinasPajaro_hefs_csv_daily.zip02-Apr-2026 09:14 AM PDT478K
South Bay2026040212_SouthBay_hefs_csv_daily.zip02-Apr-2026 09:08 AM PDT373K
Southern California2026040212_SouthernCalifornia_hefs_csv_daily.zip02-Apr-2026 09:21 AM PDT896K
San Diego/Inland2026040212_SanDiego_Inland_hefs_csv_daily.zip02-Apr-2026 09:21 AM PDT569K
Tulare2026040212_Tulare_hefs_csv_daily.zip02-Apr-2026 08:53 AM PDT811K
San Joaquin2026040212_SanJoaquin_hefs_csv_daily.zip02-Apr-2026 09:00 AM PDT1273K
North San Joaquin2026040212_n_sanjoaquin_hefs_csv_daily.zip02-Apr-2026 08:57 AM PDT498K
East Sierra2026040212_EastSierra_hefs_csv_daily.zip02-Apr-2026 09:22 AM PDT1957K
Humboldt2026040212_Humboldt_hefs_csv_daily.zip02-Apr-2026 09:11 AM PDT730K
Water Supply Indices2026040212_WSI_hefs_csv_daily.zip02-Apr-2026 09:29 AM PDT215K

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

End Date