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
Avalanche observed from Coyote Hut in Euer Valley
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Terrain: elevations: 
Near Treeline
Terrain: aspects: 
E
Hide Avalanche Details
Avalanche Type: 
Wind Slab
Failure Plane/Weak Layer: 
Unknown
Hide Trigger
Trigger: 
Natural
Hide Terrain
Start Zone Slope Angle: 
35degrees
Aspect: 
East
Starting Elevation: 
7200'
Hide Size
Destructive Size: 
D2 Could bury, injure, or kill a person.
Hide People Involved
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0
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