CNRFC - Hydrology - River Guidance - Graphical RVF

Start of River Group

Location:

LAKE TAHOE - TAHOE CITY (THLC1)

Latitude: 39.18º N	Longitude: 120.12º W	Elevation: 6219 Feet
Location: Placer County in California		Bulletin Group: Eastern Sierra		River Group: Eastern Sierra

Issuance Time:

Dec 31 2025 at 1:46 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 US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
6,229.1 Feet	Flood Stage. Flooding begins to occur around the shores of Lake Tahoe, especially on the side of the Lake to which the wind is blowing (i.e., if there is a S wind, the N shore would have worst flooding)

Official 7 Day National Weather Service Forecast (CAZ072)

Today: Rain and snow. Snow level 9000 feet lowering to 8000 feet. Snow accumulation up to 2 inches. Highs 39 to 44. Light winds becoming south around 10 mph in the afternoon. Ridge gusts up to 55 mph.

Tonight: Snow and rain likely in the evening, then partly cloudy with a chance of rain and snow after midnight. Snow level 6500 to 7000 feet. Snow accumulation up to 2 inches. Lows 21 to 31. Southwest winds 10 to 15 mph. Ridge gusts up to 50 mph.

Friday: Mostly cloudy with a slight chance of snow in the morning, then partly cloudy in the afternoon. Highs 42 to 52. Light winds. Ridge gusts up to 50 mph in the afternoon.

Friday Night: Slight chance of rain and snow in the evening, then snow and rain likely after midnight. Snow level 6500 feet. Lows 26 to 36. South winds 10 to 15 mph. Gusts up to 30 mph after midnight. Ridge gusts up to 65 mph increasing to 80 mph after midnight.

Saturday: Heavy snow and rain. Snow level 7000 feet. Highs 37 to 47. South winds 10 to 15 mph with gusts up to 35 mph. Ridge gusts up to 85 mph.

Saturday Night: Heavy snow showers, rain and slight chance of thunderstorms. Lows 27 to 37.

Sunday and Sunday Night: Heavy snow and rain. Highs 35 to 45. Lows 24 to 34.

Monday: Heavy snow. Highs 33 to 43.

Monday Night and Tuesday: Snow likely. Lows 18 to 28. Highs 33 to 38.

Tuesday Night and Wednesday: Mostly cloudy with a chance of snow. Lows 17 to 27. Highs 35 to 40.

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 Reno 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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