Loose avalanches and faceting snow in GNP
Location Name: Forecaster Observation - Mt. Stanton, Glacier National Park Observation date: Sunday, December 10, 2017 - 12:00 |
Is this an Avalanche Observation: Yes |
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Observation made by: Forecaster
Location
Tabs
Avalanche Details:
Date and Time of Avalanche:
Saturday, December 9, 2017 - 13:00
Avalanche Type:
Wet Loose
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
natural
Aspect:
South
Starting Elevation:
above-treeline
Destructive Size:
D1.5
Relative Size:
R1 Very Small
Crown Height:
Less than 1 ft
Avalanche Location:
Date and Time of Avalanche:
Sunday, December 10, 2017 - 14:15
Avalanche Type:
Loose Dry/ Sluff
Failure Plane/Weak Layer:
New/old snow interface
Trigger:
skier
Trigger Modifier:
Intentionally Triggered
Start Zone Slope Angle:
40
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 Length (Vertical Run):
800ft.
Avalanche Location:
On SE to SW aspects from a number of peaks in GNP. Uncertain of timing on these; ran sometime during our recent sunny weather this past week.