Storm slab cycle in Noisy Basin
Location Name: Forecaster Observation - Noisy Basin, Swan Range Observation date: Saturday, February 16, 2019 - 14:00 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Tabs
Avalanche Details:
Date and Time of Avalanche:
Saturday, February 16, 2019 - 01:00
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
Within storm snow
Trigger:
natural
Start Zone Slope Angle:
35
Aspect:
East
Starting Elevation:
5900' - 6400'
Destructive Size:
D2 Could bury, injure, or kill a person.
Relative Size:
R3 Medium
Crown Height:
1 ft
Avalanche Length (Vertical Run):
400ft.
Avalanche Width (Average width):
100ft.
Avalanche Location:
All slides we noted occurred on wind loaded mid-elevation slopes within 100' vertical feet of the ridgeline. Poor visibility prevented us from viewing other terrain.