Recent Natural Avalanche In Central Glacier Park
Location Name: Forecaster Observation - Lake McDonald Area Observation date: Monday, December 20, 2021 - 18:30 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Tabs
Avalanche Details:
Date and Time of Avalanche:
Sunday, December 19, 2021 - 07:00
Number of avalanches:
1
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
natural
Start Zone Slope Angle:
35
Aspect:
East
Starting Elevation:
above-treeline
Destructive Size:
D1.5
Relative Size:
R3 Medium
Crown Height:
1 ft
Avalanche Length (Vertical Run):
200ft.
Avalanche Width (Average width):
40ft.
Avalanche Location:
Looked like a wind slab failed on a convexity.