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Observation: Logan

Observation Date
2/6/2014
Observer Name
D. Tidhar
Region
Logan
Location Name or Route
Bear River Range
Weather
Sky
Overcast
Precipitation
Light Snowfall
Wind Direction
Southwest
Wind Speed
Moderate
Weather Comments
Ridge top winds moderate from the southwest. At mid elevation in canyon winds from north/northeast.
Snow Characteristics
New Snow Depth
8"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
About 6-8" of light new snow since yesterday evening.
Red Flags
Red Flags
Wind Loading
Collapsing
Red Flags Comments
Significant wind loading near ridge tops was noted this afternoon with some collapsing atop the ridge line. Observed wind loading from the previous night and this morning below a ridge I had climbed late afternoon yesterday which had started to firm up a bit; some surface cracking visible but no audible or physical collapses observed. Cornices on ridge top were pretty soft but were growing larger and stiffer pretty rapidly. I would not ski same upper elevation terrain I did yesterday and today tomorrow.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Increasing Danger
Problem #1 Comments
Near ridge tops both on windward and leeward sides.
Avalanche Problem #2
Problem
New Snow
Trend
Increasing Danger
Problem #2 Comments
Some sloughing on steeper terrain but for the most part new snow still really light and did not pick up speed or start to form soft slabs/entrainment of other snow.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Considerable