Midstorm and Recent Avalanche Activity Lake George Headwall

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AVALANCHE OBSERVATION
Lake George Headwall

Drainage:

Submission Info
Geoff Unger
Member
Sunday, March 3, 2019 - 11:15am
Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Avalanche Type: 
Dry
Slab
Slope: 
40degrees
Trigger type: 
Natural
Aspect: 
Northeast
Weak Layer: 
Storm Snow
Avalanche Width: 
80ft.
Terrain: 
Near Treeline
Elevation: 
9 580ft.
Avalanche Length: 
300ft.
Number of similar avalanches: 
4
More detailed information about the avalanche: 

There were a lot of very small windslab crowns visible around the cirque of the Lake George Headwall.  I tried to pull the most notable ones to the fore by adding arrows to the photo.  The Rightmost arrow on the photo has a close-up photo of the crown from a safe location on the ridge.  All these slides ran mid-storm or overnight into this morning.  Snowpack tests nearby indicated fracture initiation, but not propagation.  See obs photo.

Avalanche Photos: 
Snowpit or crown profile photo or graph: 
Snowpack Tests Nearby to windslab with closeup photo
Avalanche observation video: 
Blowing Snow: 
Yes
Cloud Cover: 
50% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
None
More detailed information about the weather: 

The weather was cooler than expected given the surface snow conditions we found.  Wind was actively transporting snow at ridgetop and mid slope as we toured today.

Red Cone Approach 37° 35' 48.3972" N, 119° 0' 52.7436" W

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