Wishing for better visibility
Location Name: Forecaster Observation - Flathead Range, Middle Fork Corridor Observation date: Sunday, February 9, 2020 - 15:15 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Sunday, February 9, 2020 - 12:45
Number of avalanches:
6
Avalanche Type:
Loose Dry/ Sluff
Failure Plane/Weak Layer:
Within storm snow
Trigger:
skier
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):
200ft.
Avalanche Location:
Date and Time of Avalanche:
Sunday, February 9, 2020 - 12:45
Number of avalanches:
1
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
Small steep rollover
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
39
Aspect:
Southeast
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):
40ft.
Avalanche Width (Average width):
20ft.
Avalanche Location:
Date and Time of Avalanche:
Sunday, February 9, 2020 - 12:45
Number of avalanches:
5
Avalanche Type:
Loose Dry/ Sluff
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
Triggered by brief solar warming near rock bands. Mid and low elevations
Trigger:
natural
Aspect:
South
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Length (Vertical Run):
150ft.
Avalanche Location:
Mostly D1, one ran longer to D1.5