Professional Observation - Cascadilla Creek avalanche, Flathead Range

Location Name: 
Professional Observation - Cascadilla Creek avalanche, Flathead Range
Region: 
Flathead Range - Middle Fork Corridor
Date and time of avalanche (best estimate if unknown): 
Thu, 03/02/2017 - 18:00
Location Map: 

Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Obvious avalanche path
Observation made by: Professional Observer
Avalanche Observations
Avalanche Type: 
Dry
Trigger type: 
Natural
Aspect: 
Northeast
Weak Layer: 
Old snow
Terrain: 
Above Treeline
Elevation: 
7 000ft.
Bed Surface: 
Old Snow
More detailed information about the avalanche: 

Images and observation sent by BNSF Avalanche Safety Consultant during drive from Essex to West Glacier. Observations were made from Highway 2.

Saw a lower crown line yesterday but the rest was socked in.  Better views today.  I think all activity was likely yesterday (Thursday, March 2) or the night before. 

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