Southern Glacier observations
Location Name: Forecaster Observation - Peak 6996, GNP Observation date: Sunday, December 24, 2017 - 14:45 |
Is this an Avalanche Observation: No |
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Observation made by: Forecaster
Tabs
Avalanche Details:
Date and Time of Avalanche:
Monday, December 18, 2017 - 12:00
Avalanche Type:
Soft Slab
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
natural
Start Zone Slope Angle:
35
Aspect:
East
Starting Elevation:
6800'
Destructive Size:
D2.5
Relative Size:
R3 Medium
Crown Height:
2 ft
Avalanche Length (Vertical Run):
1500ft.
Avalanche Width (Average width):
750ft.
Avalanche Location:
The majority of the east bowl slid during this event. I may be underestimating the crown width and Relative Size due to the cold temperatures which were creating brain and body freeze while mired in the late afternoon shadows. The far skiers right, in the trees, remained unscathed. Avalanche appears to have run 2/3 path. Of note: the popular skiers right of center line slid!