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Avalanche above Frog Lake Road/Euer Valley

Location Name: Red Mountain/Euer Valley Region: Donner Summit Area Observation Date & Time: Monday, February 15, 2021 - 10:45
Location: 39.373523, -120.295290 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Recent Loading Recent Loading›Blowing Snow Recent Loading›Rain on Snow Terrain Alerts: Slopes Steeper than 30 degrees Terrain Matches the Advisory

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

What appears to be a naturally triggered wind slab avalanche observed from Coyote Hut, in Euer Valley at Tahoe Donner Cross Country. The avalanche slid on the ridge south of Red Mountain just above Frog Lake Road on an East aspect at approximately 7200'. The slope angle at the start zone is estimated to be about 35 degrees. The avalanche likely occoured overnight as I did not observe it while skiing in the same area yesterday afternoon. Ongoig winds this morning appear to have transported some new snow onto the bed surface of the avalanche.

Avalanche observed from Coyote Hut in Euer Valley

Terrain Details

Terrain: elevations:

Near Treeline

Terrain: aspects:

Avalanche Details

Avalanche Type:

Wind Slab

Failure Plane/Weak Layer:

Unknown

Trigger

Trigger:

Natural

Terrain

Start Zone Slope Angle:

35degrees

Aspect:

East

Starting Elevation:

7200'

Size

Destructive Size:

D2 Could bury, injure, or kill a person.

People Involved

Number of people caught:

Number of partial burials:

Number of full burials:

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Avalanche above Frog Lake Road/Euer Valley

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Avalanche above Frog Lake Road/Euer Valley

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