Avalanche

Avalanche: Porter Fork

NelsonSalt Lake
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Quick report

Slope Angle
40°

Avalanche

Slab Width
46 m
Weak Layer
New Snow
Vertical Fall
152 m
Avalanche Type
Cornice Fall
Start Zone Aspect
North
Start Zone Elevation
2896 m

Since Monday, 2/28/11, there have been 2 major cornice falls on the ridge west ot Raymond between points 9661 and 9776. Monday night's fall was natural, about refrigerator size and ran 300 to 400 ft. entraining quite a bit of surface snow. Last nights fall, also apparently natural was SUV size, again entraining a lot of snow and taking out two fair sized trees (8-12" trunk diameter). This one ran about 500 ft. This cornice was an old, hard cornice and ended up quite a bit down the slope. There were no tracks on the ridge so I am quite sure the cornices fell of their own weight.