11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
Ad
Observation Date: 
1/19/2016
Observer Name: 
Primomo
Location Name or Route: 
Arrowhead
Red Flags
Red Flags: 
Recent Avalanches
Poor Snowpack Structure
Avalanche Problem #1
Type: 
Deep Slab
Trend: 
Increasing Danger
Avalanche Problem #2
Type: 
Persistent Weak Layer
Trend: 
Increasing Danger
Snow Profile
Aspect: 
East
Elevation: 
8200
Slope Angle: 
24
Comments: 

A few layers of slabs consisting of 1F hardness snow. Weakest layer here was the 4F graupel (3+mm) intermixed with scattered but sharp 2-4mm stellars. This layer was down 55cm here, and was the 1/14 interface. Surface hoar coated the surface in open areas. Test results were:

CTM SC x2

ECTP 21

PST 35/100 (End)

Video: 

With such a progressive storm track, it has been somewhat difficult to keep accurate tabs on the snowpack. The obvious has been in the avalanche observations. What I saw today was a mixture of deep weak layers, presumably basal facets have been acting up with incremental loading, and the 1/14 interface (which likely ranges from 40cm to 100cm deep depending on aspect, elevation, and which part of the range.

Photos:

1. Pt 10626, ENE aspect south of Box Elder into Wide Hollow.

2. NE-SE terrain off Pt 11036 south of White Baldy. The crown wrapped around to below the mid slope cliffs on R if you look carefully.

3. E facing off upper Cascade Cirque.

4. SW facing terrain, lower SR-92 corridor (6200ft)

5. Lost Creek debris from eastern most bowl (SE at 9800ft)

 

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

Support the Avalanche Center through your purchases

Discount lift tickets
All proceeds from ticket sales benefit the UAC when you purchase your next lift tickets.
Lift tickets available in November
Need new gear?
Make your next purchase from our Affiliate Partners and the UAC will receive a portion of the sales.
Shop
Sign up for our newsletters, emails and daily forecasts to stay up to date.
Subscribe