Slides on Maggie's and Tallac

Location Name: 
Maggie's
Region: 
Desolation Wilderness Area (including Emerald Bay)
Date and time of avalanche (best estimate if unknown): 
Mon, 01/28/2013 - 12:00
Location Map: 
United States
38° 55' 34.9104" N, 120° 6' 17.946" W
See map: Google Maps
US


Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Rapid warming
Obvious avalanche path
Observation made by: Public
Avalanche Observations
Avalanche Type: 
loose,
Slope: 
40degrees
Trigger type: 
Natural
Aspect: 
Northwest
Weak Layer: 
Old Snow
Terrain: 
Near Treeline
Elevation: 
8 500ft.
Bed Surface: 
Old Snow
Avalanche Length: 
800ft.
Number of similar avalanches: 
2
More detailed information about the avalanche: 

 Observed long-running loose slides on E/SE aspect and N/NW aspect on opposite sides of same drainage. Appeared to have run on first sunny day after storm.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Precipitation: 
Air temperature trend: 
Static
Wind Direction: 
Northeast
Accumulation rate: 
More detailed information about the weather: 

 Some dark clouds moving by with speed over South Lake and Hope Valley. Blowing snow seen on Dick's pk. Very calm on Maggie's, with evidence of NE wind on snow surface.