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Observation: Logan

Observation Date
12/19/2012
Observer Name
Weed, Archibald
Region
Logan
Location Name or Route
White Pine Knob
Weather
Sky
Clear
Wind Direction
North
Wind Speed
Light
Weather Comments
Beautiful day, nice in the sun, but very cold. Ice crystal cloud rolled in around 1500...
Snow Characteristics
New Snow Depth
2'
New Snow Density
Medium
Snow Surface Conditions
Powder
Snow Characteristics Comments
Supportable on skis and sled under around 6" of light powder from late in 12-17 storm. Sinking in above knees with boots only...
Red Flags
Red Flags Comments
We noted no red flags.... Snow showed fair to good stability.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
Rather unlikely from what I could see, but very bad consequences possible if one were to trigger an avalanche...
Snow Profile
Aspect
Northeast
Elevation
8,700'
Slope Angle
32°
Comments
The starting zone of "Check Your Pants" cracked and collapsed late in the intense storm on Monday 12-17-2012. The slab moved a few inches but it did not run down-slope despite adequate slope steepness (around 39 degrees). I think several other slopes did the same thing during Monday's snow and wind event.
The low ice cloud rolled in in the afternoon, creating otherworldly sun dogs....
We found good shallow powder conditions and the snow was fast enough for enjoyable riding, even on lower angled slopes....
Coordinates