CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

MCCLOUD RIVER - SHASTA LAKE (MSSC1)

Latitude: 40.95º N	Longitude: 122.22º W	Elevation: 1100 Feet
Location: Shasta County in California		Bulletin Group: Upper Sacramento		River Group: Upper Sacramento

Issuance Time:

Dec 31 2025 at 1:37 PM PST

Next Issuance:

Jan 01 2026 at 9:00 AM PST

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View California Department of Water Resources Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ013)

Tonight: A chance of rain early in the evening, then rain in the late evening and overnight. Patchy fog after midnight. Lows 35 to 48. Light winds.

New Years Day: Rain. Highs 40 to 54. Light winds.

Thursday Night: Rain. Lows 36 to 49. Prevailing south winds up to 10 mph.

Friday: Rain. Highs 40 to 55. Prevailing south winds up to 15 mph.

Friday Night: Rain. Lows 35 to 47 higher elevations and 44 to 50 lower elevations. Prevailing south winds 5 to 15 mph with gusts to around 30 mph.

Saturday: Rain. Highs 40 to 54.

Saturday Night: Rain. Lows 34 to 49.

Sunday: Rain. Highs 37 to 52.

Sunday Night: Rain showers and a slight chance of thunderstorms. Lows 32 to 45.

Monday: Rain. Highs 36 to 51.

Monday Night: Mostly cloudy with rain and snow likely. Light snow accumulations possible. Lows 29 to 43.

Tuesday: Mostly cloudy with a chance of rain and snow. Not as cool. Highs 39 to 54.

Tuesday Night: Partly cloudy with a slight chance of rain and snow. Lows 28 to 41.

Wednesday: Mostly cloudy with a chance of rain and snow. Highs 39 to 54.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

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