CNRFC - Ensemble Products

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TRUCKEE RIVER - TRUCKEE (TRCC1)

Latitude: 39.30º N	Longitude: 120.20º W	Elevation: 5860 Feet
Location: Placer County in California		Bulletin Group: Eastern Sierra		River Group: Eastern Sierra

Issuance Time:

Jun 22, 2025 at 11:01 AM PDT

Action/Monitor: 4.5 Feet

Minor Flood: 5.5 Feet

Moderate Flood: 6.5 Feet

Major Flood: 7.5 Feet

Please Note:

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

5- and 10-day ensemble products for this location are regulated forecasts that include outflow from Lake Tahoe. Longer-range products are unregulated forecasts that do not include Lake Tahoe.

Threshold Exceedance Plot Product Information

CSV Ensemble Files (Data in kcfs): Forecast Group | TRCC1

Select Threshold to Use: Threshold Value: Threshold Label:

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		Official Forecast (Deterministic)

		Prob. of Threshold Exceedance
		Model Traces

What information is considered in this forecast?

Verification / Historical Plots
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Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
10.0 Feet	Record flooding, similar to the flood of January, 2 1997. Widespread and major damage is likely to many homes, businesses, bridges and roads near the river from the Alpine Meadows area through Truckee.
9.5 Feet	Near record flooding, widespread damage to homes, businesses, roads, and bridges along river from Alpine Meadows through Truckee.
8.5 Feet	Major flooding from the Alpine Meadows area through Truckee. Significant damage is likely to many roads, bridges, structures and homes along the river.
7.5 Feet	Major flood stage. Major flooding with damage to roads, bridges and structures along the Truckee River between Alpine Meadows and Truckee including low lying homes. Highway 89 likely overtopped near the Pole Creek Road.
7.0 Feet	Moderate flooding along Truckee River between Alpine Meadows and Truckee. Significant damage to some private bridges and low-lying structures along the river is possible. Flows similar to the flood of December 31 2005.
6.5 Feet	Moderate flood stage. Flooding from Alpine Meadows to Truckee, including yards, crawlspaces, basements, private bridges and campgrounds. Flows similar to January 2017 event.
5.5 Feet	Flood stage. Minor flooding from Alpine Meadows to Truckee. Minor flooding of landscapes, basements and crawlspaces in low lying properties. Riverside campgrounds may be impacted by flooding from small tributaries and overland flow, but little impact is expected from the river.
5.0 Feet	Minor flooding from Bear Creek in the Alpine Meadows area to Truckee. Truckee River bike path between the River Ranch at Alpine Meadows Road to Tahoe City flooded up to a foot deep. Minor flooding of basements and yards of some low-lying homes along the river. Deep Creek Campground has limited access due to flooding. Minor flooding begins at Silver Creek Campground. About 2850 cfs. USGS estimates this much flow has about a 1 in 5 chance of being exceeded any year.
4.5 Feet	Monitor Stage, No flooding along the Truckee River from Alpine Meadows to Truckee.

Official 7 Day National Weather Service Forecast (CAZ072)

Today: Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. Highs 63 to 73. Northeast winds 10 to 15 mph.

Tonight: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then clear after midnight. Lows 37 to 47. Light winds.

Tuesday: Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. Highs 68 to 78. Light winds.

Tuesday Night: Clear. Lows 41 to 51. West winds around 10 mph in the evening becoming light.

Wednesday: Sunny. Highs 72 to 82. Light winds.

Wednesday Night: Clear. Lows 42 to 52.

Thursday through Saturday Night: Clear. Highs 75 to 85. Lows 43 to 53.

Sunday: Sunny. Highs 81 to 91.

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