Debris in Skiumah
Location Name: Flathead Range Observation date: Tuesday, April 7, 2020 - 21:00 |
Is this an Avalanche Observation: Yes |
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Observation made by: Public
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Monday, April 6, 2020 - 12:15
Number of avalanches:
1
Avalanche Type:
Wet Loose
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
Trigger:
natural
Start Zone Slope Angle:
40
Aspect:
Northeast
Starting Elevation:
above-treeline
Destructive Size:
D2.5
Relative Size:
R2 Small
Avalanche Length (Vertical Run):
2000ft.
Avalanche Width (Average width):
100ft.
Avalanche Location:
Date and Time of Avalanche:
Tuesday, April 7, 2020 - 12:30
Number of avalanches:
2
Avalanche Type:
Wet Loose
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
There were 2 slides roughly parallel to each other in the upper reaches of the basin. The larger of the two may be closer to a D2. Viewed from a distance.
Trigger:
natural
Start Zone Slope Angle:
40
Aspect:
North
Starting Elevation:
7000'
Destructive Size:
D1.5
Relative Size:
R2 Small
Avalanche Length (Vertical Run):
500ft.
Avalanche Width (Average width):
50ft.
Avalanche Location:
Date and Time of Avalanche:
Wednesday, April 1, 2020 - 00:45
Number of avalanches:
4
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Unknown
More information or comments about the avalanche:
This ran during the storm cycle last week as the debris is covered by snow. No crown was visible but the debris suggests a slab avalanche. We observed several smaller debris piles on this same aspect covered by storm snow.
Trigger:
natural
Start Zone Slope Angle:
35
Aspect:
Northwest
Starting Elevation:
near-treeline
Destructive Size:
D2 Could bury, injure, or kill a person.
Relative Size:
R2 Small
Avalanche Length (Vertical Run):
800ft.
Avalanche Width (Average width):
50ft.
Avalanche Location: