New snow instabilities on Grant Ridge
Location Name: Forecaster Observation- Grant Ridge, Flathead Range Observation date: Monday, April 2, 2018 - 19:15 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Tabs
Avalanche Details:
Date and Time of Avalanche:
Sunday, April 1, 2018 - 23:30
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
natural
Destructive Size:
D1.5
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Width (Average width):
50ft.
Avalanche Location:
Date and Time of Avalanche:
Monday, April 2, 2018 - 14:45
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Aspect:
Northeast
Starting Elevation:
above-treeline
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Width (Average width):
50ft.
Number of people caught:
0
Avalanche Location:
Date and Time of Avalanche:
Monday, April 2, 2018 - 14:45
Avalanche Type:
Loose Dry/ Sluff
Failure Plane/Weak Layer:
Within storm snow
More information or comments about the avalanche:
Natural loose dry ran last night. Numerous skier triggered loose dry today. All aspects, mostly below 6,000'
Trigger:
skier
Destructive Size:
D1 Relatively harmless to people.
Crown Height:
Less than 1 ft
Avalanche Location:
All elevation bands and aspects, mostly D1, a few D1.5 or D2.