Wind Slab on the Left, Alder on the Right
Location Name: Forecaster Observation - Southern Glacier Park Observation date: Thursday, December 16, 2021 - 19:15 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Tabs
Avalanche Details:
Date and Time of Avalanche:
Thursday, December 16, 2021 - 12:15
Number of avalanches:
1
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
40
Aspect:
Southeast
Starting Elevation:
above-treeline
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Length (Vertical Run):
100ft.
Avalanche Width (Average width):
40ft.
Avalanche Location:
Date and Time of Avalanche:
Thursday, December 16, 2021 - 14:30
Number of avalanches:
2
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
Crossloaded slope
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
35
Aspect:
Southwest
Starting Elevation:
above-treeline
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Length (Vertical Run):
50ft.
Avalanche Width (Average width):
50ft.
Avalanche Location: