CNRFC - Ensemble Products

*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

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SACRAMENTO RIVER - SHASTA LAKE (SHDC1)

Latitude: 40.72º N	Longitude: 122.42º W	Elevation: 1070 Feet
Location: Shasta County in California		Bulletin Group: Upper Sacramento		River Group: Upper Sacramento

Issuance Time:

Jun 16, 2025 at 6:30 AM PDT

Please Note:

Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Flow data on this product are unregulated / full natural flow.

2025 Water Year Trend Plot

Tabular View | Select a Different Water Year:

Text Products (RNOHFSOSV and RNOHFSWYV)

Raw ESP Water Year Streamflow Volumes Tracker
Water Year Streamflow Volume Accumulation Forecast

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ013)

Tonight: Mostly clear. Colder. Lows 41 to 56. Prevailing northwest winds up to 15 mph.

Friday: Mostly sunny. Not as warm. Highs 58 to 73 higher elevations and 70 to 78 lower elevations. Prevailing west winds up to 15 mph with gusts to around 30 mph.

Friday Night: Mostly clear. Colder. Lows 34 to 49 higher elevations and 42 to 53 lower elevations. Prevailing northwest winds up to 15 mph with gusts to around 30 mph.

Saturday: Sunny. Highs 58 to 73 higher elevations and 71 to 80 lower elevations. Prevailing north winds up to 10 mph.

Saturday Night: Mostly clear. Lows 37 to 52 higher elevations and 45 to 56 lower elevations. Prevailing north winds up to 15 mph with gusts to around 30 mph.

Sunday: Sunny, warmer. Highs 69 to 84.

Sunday Night: Clear. Lows 47 to 62.

Monday: Sunny, warmer. Highs 77 to 92.

Monday Night: Mostly clear. Lows 50 to 65.

Tuesday through Thursday: Clear. Highs 81 to 96. Lows 52 to 67.

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