Avalanche: East Faces-Wellsville Range 12/29/2010

Observer Name: 
Flygare/ Weed
Observation Date: 
12/30/2010
Occurrence Date: 
12/29/2010
Occurrence Time: 
Unknown
Region: 
East Faces-Wellsville Range
Little Bear
Logan
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Location

41° 40' 38.55" N, 112° 0' 37.8288" W
Avalanche Characteristics
Elevation: 
Unknown
Elevation Range Maximum: 
9000'
Elevation Range Minimum: 
6000'
Aspect: 
Northeast
East
Southeast
Slope Angle: 
Unknown
Alpha Angle: 
23
Trigger: 
Natural
Trigger: additional info: 
Repeater
Avalanche Type: 
Soft Slab
Depth (avg): 
unknown
Depth Range: 
2' to
4'
Width: 
Unknown
Vertical: 
2000'
Vertical Range: 
1500' to
2500'
General Comments

In a brief clearing yesterday evening both Eric and I noticed a change in the run out cones on Maple Bench below the big east facing avalanche paths above Mendon.  It appeared as though several of the paths naturally avalanched with Wednesday's heavy snowfall.. My first impression is that these were fairly long-running avalanches, with debris spilling well out onto the flat benches below the flow directing gullies....

12-31-2010- I was able to get up to Maple Bench today and confirmed this information....  An extensive natural cycle did occur with Wednesday's Storm, likely late in the day 12-29-2010.....  Here's a look at the huge pile of fresh debris at the bottom of Old Logway Canyon....

IMG_0906.jpg
General Comments 2

The avalanche broke and tossed about a number of trees on the edge of the large debris pile....  It ran the full length of it's path....

IMG_0925.jpg
General Comments 3

Here, I'm looking from the toe of the Old Logway Avalanche uphill toward the probable area of the crown, which has been blown in and obscured since the avalanche.

photo-7.JPG
General Comments 4

This avalanche hit Maple Bench with lots of destructive force.....

IMG_0934.jpg
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