Submitted by Public (not verified) on Sat, 02/13/2021 - 21:54
Location Name: 
SW slope outside Schweitzer
Region: 
Selkirk Mountains
Location Map: 
United States
48° 21' 46.044" N, 116° 38' 31.7868" W
See map: Google Maps
US
Date and time of observation: 
Sat, 02/13/2021 - 15:30
Observation made by: 
Public
Red Flags: 
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain
Snowpit Observations
More detailed information about the snowpack: 

Sudden collapse and shooting cracks.  Difficult to see the crack in the photo but it shot about 20' up slope.  Entire area collapsed with a loud whumpf.  Had 4 of these about the same size collapse.  20-25 degree slope.  Heavy wind loading from winds ripping across the top of the ridge.  Wind slab in this location was about 2' thick.  

Snowpack photos: 
Any other comments about the observation or links to outside pages that have more info on the observation: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Strong
Precipitation: 
None
Air temperature trend: 
Wind Direction: 
Northeast
Accumulation rate: 
More detailed information about the weather: