Avalanche: Porter Fork

Observer Name
Nelson
Observation Date
Friday, March 4, 2011
Avalanche Date
Friday, March 4, 2011
Region
Salt Lake » Mill Creek Canyon » Porter Fork
Location Name or Route
Porter Fork
Elevation
9,500'
Aspect
North
Slope Angle
40°
Trigger
Unknown
Avalanche Type
Cornice Fall
Weak Layer
New Snow
Depth
Unknown
Width
150'
Vertical
500'
Comments

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.

Coordinates