Snowpit from outside Schweitzer ski area.

Location Name: 
5600’ elevation on a NNW facing slope
Region: 
Selkirk Mountains
Date and time of observation: 
Sun, 12/31/2017 - 11:00
Location Map: 
United States
48° 21' 43.6428" N, 116° 39' 14.8284" W
US


Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain

Observation made by: Public
Snowpit Observations
More detailed information about the snowpack: 

170cm total depth at 5800’

30 degree NNW slope

Failures in cm from the top.

CT3 at 10cm

CT6 at 20cm

CT10 at 35cm

CT13 at 85cm

ECTP24 at 20cm and at 35cm

No propogation on the 85cm down layer but it sure does fracture clean in the single column.  Camera battery died part way through the test so didn’t get any photos of this layer.

Wide spread breakable wind crust skied good, with the right skis, in more open slopes where longer radius turns can be made.

Saw 2 separate avalanche crowns across the gully in steeper terrain with rock outcroppings.  1 was natural and 1 appeared to be skier triggered.  They where both in isolated areas and relatively small.  Difficult to tell the crown depth and time from a distance away but looked to be from yesterday or the day before and maybe 10-20cm deep.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Any other comments about the observation or links to outside pages that have more info on the observation: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
Clear
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Precipitation: 
None
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
None
More detailed information about the weather: