Sneaky storm, sneaky persistent slab structure
Location Name: Forecaster Observation - Lost Johnny, Swan Range Observation date: Monday, February 11, 2019 - 17:30 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Monday, February 11, 2019 - 09:30
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Within storm snow
Trigger:
natural
Destructive Size:
D1 Relatively harmless to people.
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Width (Average width):
35ft.
Avalanche Location:
Widespread SS cycle this morning, on mid storm precip particles. Almost all D1, a few D1.5 in bigger terrain. All elevations, aspects.