Natural Avalanches on N Side Ralston

Location Name: 
North face of Mount Ralston
Region: 
Echo Summit Area
Date and time of avalanche (best estimate if unknown): 
Tue, 12/25/2012 - 00:00
Location Map: 
United States
38° 49' 58.1556" N, 120° 6' 3.114" W
See map: Google Maps
US


Red Flags: 
Observation made by: Public
Avalanche Observations
Avalanche Type: 
slab,
Slope: 
40degrees
Trigger type: 
Natural
Aspect: 
Northeast
Terrain: 
Above Treeline
Elevation: 
9 000ft.
More detailed information about the avalanche: 

 Large natural avalances were visible on Ralston's N side Thursday afternoon at 1530.  See associated photos.  Slide activity appeared to be at least a day old but I am not sure about timing as we were viewing from a distance.  Very large crown heights noted, especially the one seen lower on the mountain in the pictures.  

Avalanche Photos: 
Weather Observations
Air temperature: 
Precipitation: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: