Snow Profile: Salt Lake 12/20/2009

Submitted/Updated:
Mon 12/21/2009 - 4:26 am
Submitted by:
Mike Lipps

Elevation: 
9000'
Aspect: 
West
Slope Angle: 
28
Comments: 

Sunny and warm. 33 degree F air temperature.

There was a 1 degree C per 10cm temperature gradient at the ground. Depth hoar is growing. 2mm surface hoar feathers could cause a problem if buried by Tuesday's storms.

Snow Profile Image: 
12-20-09_observation.jpg

Very large surface hoar crystals could produce a weak layer if buried in Tuesday's storm.

IMG_1426-1.jpg

Very weak depth hoar. Cup shaped crystals. Weak propagation layer for ECT test.

IMG_1432-1.jpg

Extended Column Test: Columns all came out as one big block at the ground or depth hoar layer. Hard slaps are possible with a trigger.

ECT#1: 5 taps from the shoulder

ECT#2 8 taps from the shoulder

ECT#3 3 taps from the elbow

ECT tests produced a variety of results which in turn could produce a variety human triggers avalanches.

IMG_1453.JPG

Location

40° 36' 27.9432" N, 111° 34' 34.4892" W
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