Grassy Twin natural avalanche

Location Name: 
Grassy Twins Lake(lower)
Region: 
Hazard Lake Area
Date and time of avalanche (best estimate if unknown): 
Wed, 03/16/2016 - 10:59
Location Map: 
United States
45° 9' 49.9824" N, 116° 12' 0.1152" W
US


Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Rapid warming
Obvious avalanche path
Terrain Trap

Observation made by: Public
Avalanche Observations
Avalanche Type: 
Dry
Trigger type: 
Natural
Crown Height: 
3 ft
Aspect: 
Northeast
Weak Layer: 
Storm Snow
Terrain: 
Near Treeline
Elevation: 
8 000ft.
Bed Surface: 
Old Snow
Avalanche Length: 
700ft.
More detailed information about the avalanche: 

First day of rapid warming after significant wind and precipitation event, possibly happened during storm. Similar avalanches observed on similar aspects in newly formed wind slabs.  This slide likely resulted from a cornice failure.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
50% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Moderate
Precipitation: 
Snow
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: