Toto, I don't think we're in the Flathead anymore
Location Name: Forecaster Observation - southern Glacier NP Observation date: Friday, January 10, 2020 - 19:30 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Friday, January 10, 2020 - 12:45
Number of avalanches:
2
Avalanche Type:
Cornice
Failure Plane/Weak Layer:
Old snow
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Aspect:
East
Starting Elevation:
near-treeline
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Avalanche Length (Vertical Run):
150ft.
Avalanche Width (Average width):
10ft.
Avalanche Location:
Date and Time of Avalanche:
Friday, January 10, 2020 - 14:45
Number of avalanches:
1
Avalanche Type:
Loose Dry/ Sluff
Failure Plane/Weak Layer:
New/old snow interface
More information or comments about the avalanche:
Ski cut on steep gully wall produced small, slow-moving sluff.
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
40
Aspect:
Southeast
Starting Elevation:
5400
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Avalanche Length (Vertical Run):
50ft.
Avalanche Width (Average width):
10ft.
Avalanche Location:
Cornices sensitive to a person's weight, breaking in older generation 2x ski length. Debris didn't trigger slabs on slopes below, just some long running sluffs that didn't entrain much snow.