Rutherford

Avalanche

brett · Mar 21, 2021 · Brandywine

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Avalanche

Run Length
400
Slab Width
100
Trigger Type
natural
Wind Exposure
leeSlope
Avalanche Size
3.5
Slab Thickness
50
Start Zone Aspect
N, NE
Trigger Distance
17
Vegetation Cover
openSlope
Avalanche Character
windSlab, corniceWithSlab
Number Of Avalanches
2-5
Avalanche Observation
24to48hrsAgo
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2021-03-21T19:00:00.000Z

Within the last 7 days we have had storms with dominant wind directions from the north and south. First from the north and then more recently the more dominant direction. This led to wind slabs on both north and south aspects. There was a size 3.5 in the Rutherford on a north facing aspect triggered by a cornice fall due to warming temperatures on Monday. Cornice triggered an avalanche below it. It came down with cornice junks the size of small cars, and ran around 400m. We also saw several size ones and twos on south facing aspects. This led us to making terrain choices with little to no overhead hazards yesterday. it is unknown when exactly the avalanche took place we assume it was during Mondays warming period