Flathead walkabout
Location Name: Forecaster Observation - Flathead Range Observation date: Thursday, November 12, 2020 - 18:00 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Tabs
Avalanche Details:
Date and Time of Avalanche:
Thursday, November 12, 2020 - 12:00
Number of avalanches:
3
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Within storm snow
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
38
Aspect:
North
Starting Elevation:
near-treeline
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Length (Vertical Run):
20ft.
Avalanche Width (Average width):
18ft.
Avalanche Location:
Wind slabs were specific to leeward aspects and small in size. We did find small slabs on lee aspects where the wind hardened the surface.