11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
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Observation Date: 
2/1/2018
Observer Name: 
Weston Deutschlander
Location Name or Route: 
Upper Weber Canyon
Weather
Sky: 
Overcast
Wind Direction: 
Southwest
Wind Speed: 
Light
Weather Comments: 
Wind kept upper elevation snow cold, however mid and lower elevations felt the fuill wrath of the sun's rays when it peaked out from the clouds.
Snow Characteristics
Snow Surface Conditions: 
Wind Crust
Melt-Freeze Crust
Rain-Rime Crust
Snow Characteristics Comments: 

Ran into a variety of snow surface conditions, most of them were pretty junky and inhibited riding conditions. 

Red Flags
Red Flags: 
Poor Snowpack Structure
Avalanche Problem #1
Type: 
Persistent Weak Layer
Trend: 
Same
Problem #1 Comments: 

If there is a poor structure, and that poor structure is present pretty much everywhere at upper elevations, mind your slope angles. It is getting harder and harder to trigger them but the consequences have not diminished. 

Avalanche Problem #2
Type: 
Wind Drifted Snow
Problem #2 Comments: 

A pretty distant 2nd to the PWL, but still there.  Evidence of wind transport was seen thru the day. 

Snow Profile
Aspect: 
West
Elevation: 
10400
Slope Angle: 
32
Comments: 

Surface texture from wind as well as a crack from artificial trigger. 

Shallow snowpack, crack that went down to old snow/newish snow interface.

Old skier triggered slide in addition to a natural. Note the glaze from the firnspiegel.

Large radiating crack from artificial trigger.  Even after a significant load was placed on this slope and we thought all energy had been removed; we got stability tests that said otherwise.  IF THERE IS POOR STRUCTURE, BE WARY AND MIND YOUR SLOPE ANGLES. 

 

E facing

39° slope

10,450

HS120cm

CTM SP ECTPV 55cm down

Today's Observed Danger Rating: 
Moderate
Tomorrows Estimated Danger Rating: 
Moderate
Snow Profile Coordinates: 
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