Observation: Northern Bear River Range

Observation Date
04/8/2013
Observer Name
Tidhar

Region:

Location Name or Route
Northern Bear River Range
Weather
Sky
Overcast
Precipitation
Heavy Snowfall
Wind Direction
East
Wind Speed
Strong
Weather Comments
Winds variable and only strong along ridgetop.
Snow Characteristics
New Snow Depth
12"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
Relatively light low density new snow atop an extremely supportable bonded base. There was a very apparent temperature gradient with new snow denser below ~8000 feet, with heavily saturated areas below trees.
Red Flags
Red Flags
Heavy Snowfall
Wind Loading
Avalanche Problem #1
Type
Storm Slab
Trend
Increasing Danger
Problem #1 Comments
Accumulating snow created soft slab conditions with potential for entrainment of skier. Cornices fairly sensitive for release. We dropped a small cornice on ~30 degree slope and triggered a soft slab which ran ~300 vertical feet.
Avalanche Problem #2
Type
Deep Slab
Trend
Increasing Danger
Problem #2 Comments
Wind slab formation on leeward slopes. Because of variability in wind direction, predicting where wind slabs may have formed below ridges could become more difficult.
Today's Observed Danger Rating
None
Tomorrows Estimated Danger Rating
None
Snow Profile Coordinates