2" to 4" skis like 7" to 11"
Location Name: Forecaster Observation - Flathead Range Observation date: Friday, February 14, 2020 - 17:00 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Friday, February 14, 2020 - 14:45
Number of avalanches:
3
Avalanche Type:
Loose Dry/ Sluff
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
40
Aspect:
East
Starting Elevation:
near-treeline
Destructive Size:
D1 Relatively harmless to people.
Avalanche Location:
Date and Time of Avalanche:
Friday, February 14, 2020 - 14:45
Number of avalanches:
1
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
40
Aspect:
Northeast
Starting Elevation:
near-treeline
Destructive Size:
D1 Relatively harmless to people.
Avalanche Length (Vertical Run):
100ft.
Avalanche Width (Average width):
20ft.
Avalanche Location:
Date and Time of Avalanche:
Friday, February 14, 2020 - 10:00
Number of avalanches:
3
Avalanche Type:
Unknown
Failure Plane/Weak Layer:
Unknown
More information or comments about the avalanche:
Quick roadside observation driving past Nyack. Could see three sizeable piles of debris. Terminated mid path.
Trigger:
natural
Aspect:
East
Starting Elevation:
above-treeline
Destructive Size:
D2 Could bury, injure, or kill a person.
Avalanche Location:
I jumped on a few pockets where graupel pooled up to 8 inches at cliff base and I couldn't get anything to move. My partner came in behind me and was able to trigger one slab by putting in a ski cut over my existing track.