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

Klamath2025042912_klamath_hefs_csv_daily.zip29-Apr-2025 08:51 AM PDT1222K
North Coast2025042912_NorthCoast_hefs_csv_daily.zip29-Apr-2025 08:49 AM PDT1123K
Russian/Napa2025042912_RussianNapa_hefs_csv_daily.zip29-Apr-2025 08:59 AM PDT1372K
Upper Sacramento2025042912_UpperSacramento_hefs_csv_daily.zip29-Apr-2025 08:32 AM PDT1398K
Feather/Yuba2025042912_FeatherYuba_hefs_csv_daily.zip29-Apr-2025 08:30 AM PDT2158K
Cache/Putah2025042912_cacheputah_hefs_csv_daily.zip29-Apr-2025 08:23 AM PDT206K
American2025042912_american_hefs_csv_daily.zip29-Apr-2025 08:25 AM PDT1730K
Salinas/Pajaro2025042912_SalinasPajaro_hefs_csv_daily.zip29-Apr-2025 09:14 AM PDT457K
South Bay2025042912_SouthBay_hefs_csv_daily.zip29-Apr-2025 09:07 AM PDT368K
Southern California2025042912_SouthernCalifornia_hefs_csv_daily.zip29-Apr-2025 09:14 AM PDT705K
San Diego/Inland2025042912_SanDiego_Inland_hefs_csv_daily.zip29-Apr-2025 09:07 AM PDT586K
Tulare2025042912_Tulare_hefs_csv_daily.zip29-Apr-2025 08:35 AM PDT853K
San Joaquin2025042912_SanJoaquin_hefs_csv_daily.zip29-Apr-2025 08:55 AM PDT1275K
North San Joaquin2025042912_n_sanjoaquin_hefs_csv_daily.zip29-Apr-2025 08:43 AM PDT490K
East Sierra2025042912_EastSierra_hefs_csv_daily.zip29-Apr-2025 09:16 AM PDT1992K
Humboldt2025042912_Humboldt_hefs_csv_daily.zip29-Apr-2025 08:36 AM PDT884K
Water Supply Indices2025042912_WSI_hefs_csv_daily.zip29-Apr-2025 09:00 AM PDT210K

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

Enter desired location(s) below (some older browsers may allow only one file download at a time):

Forecast Groups Archive

Forecast Group

Start Date

End Date