Playing possum
Location Name: Forecaster Observation - Swan Range (west side access) Observation date: Thursday, December 12, 2019 - 17:45 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Thursday, December 12, 2019 - 14:00
Number of avalanches:
2
Avalanche Type:
Cornice
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
35
Aspect:
Northeast
Starting Elevation:
near-treeline
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R2 Small
Crown Height:
Less than 1 ft
Avalanche Length (Vertical Run):
100ft.
Avalanche Width (Average width):
25ft.
Number of people caught:
0
Avalanche Location:
Triggered by dropping recently-formed cornices along SE ridge of pt. 6437 above Camp Misery. Cornices hard, sensitive to a person's weight, breaking up to about 20 feet from trigger. Debris flushed slope below. No propagation past debris; looked to involve recent snow only.