Wind slabs on Mt Brown
Location Name: Forecaster Observation - Mt Brown, GNP Observation date: Sunday, March 3, 2019 - 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:
Friday, March 1, 2019 - 20:15
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
natural
Start Zone Slope Angle:
37
Aspect:
Northwest
Starting Elevation:
above-treeline
Destructive Size:
D2 Could bury, injure, or kill a person.
Relative Size:
R2 Small
Crown Height:
1 ft
Avalanche Width (Average width):
100ft.
Avalanche Location:
2 wind slab avalanches near the top of 2 of the NW gullies. Could not see how far down the debris ran. Both were triggered by wind loading by northeast winds that pushed through the Snyder Basin headwall/Little Matterhorn saddle. Crowns were 12-18" deep.