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Observation: Tony Grove

Observation Date
12/10/2016
Observer Name
Wally Macfarlane
Region
Logan » Logan River » Tony Grove
Location Name or Route
Near Tony Grove
Weather
Sky
Overcast
Precipitation
Moderate Snowfall
Wind Direction
West
Wind Speed
Strong
Weather Comments
Warm but cooled through out the day
Snow Characteristics
New Snow Depth
3"
New Snow Density
High
Snow Surface Conditions
Dense Loose
Snow Characteristics Comments
Sierra cement
Red Flags
Red Flags
Heavy Snowfall
Wind Loading
Red Flags Comments
Almost 3 inches of water weight in past few days
Avalanche Problem #1
Problem
New Snow
Trend
Decreasing Danger
Snow Profile
Aspect
North
Elevation
8,600'
Slope Angle
30°
Comments
Considering how much new snow there was and that we were under an avalanche warning I found the conditions to be surprisingly stable. I attribute this to the very wet and heavy snow and warm conditions. I dug two snow pits one was 90 cm deep and the other was 110 cm deep there was approximately 45 cm of new snow from the latest round of precipitation. I perform shovel sheer tests and found failures with moderate pressure at the new snow and Fridays lighter density snow interface.
Today's Observed Danger Rating
High
Tomorrows Estimated Danger Rating
Considerable