11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
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Observation Date: 
1/6/2018
Observer Name: 
ryan c
Region: 
Salt Lake
Location Name or Route: 
East Bowl
Weather
Sky: 
Overcast
Precipitation: 
Light Snowfall
Wind Direction: 
Southwest
Wind Speed: 
Moderate
Weather Comments: 
31deg F 1at 030am at Grizzly Gulch. Snowing the whole day, less than 1cm/hr. S to SW winds blowing consistently on exposed ridges. Though snowing, it was fairly warm. Low visibility on the ridges at times.
Snow Characteristics
New Snow Depth: 
2"
Snow Surface Conditions: 
Faceted Loose
Melt-Freeze Crust
Snow Characteristics Comments: 
Southern aspects had up to 2" of new snow on a crust, making for some occasional slippery traverses. Could also feel a crust in East Bowl, which is a WNW aspect. Did not notice any crust on the ascent back up East Bowl Pass, NW aspect.
Red Flags
Red Flags: 
Wind Loading
Cracking
Poor Snowpack Structure
Avalanche Problem #1
Type: 
Wind Drifted Snow
Trend: 
Same
Problem #1 Comments: 
We were able to easily initiate 2 wind slabs about 10cm (4") deep on the ridge of East Bowl. These ran only a few feet since they were blocked by exposed rock/trees. On exposed ridges with steep slopes, I think these could run. May not be very wide, but could entrain the loose snow on the surface. Winds should slow a bit tomorrow, then increase a bit on Monday. You could expect a moderate danger for wind slab at high elevation exposed ridges. Easily initiated in our travels, but maybe D1 in size if triggered.
Avalanche Problem #2
Type: 
Persistent Weak Layer
Trend: 
Same
Problem #2 Comments: 
Poor snowpack structure is still present. It seems the slab may be even less cohesive than it was last weekend. I did not get a propagation in the ECT. At about 26 to 28 taps, we had a Q3 shear about 45cm from the bottom. I think the facet layer at the bottom of the 1F slab varied in its depth: I may have a discrepancy in my snowprofile as to the depth of the facet layer at 35cm. I would like to see more snowprofiles/areas to confirm this.
Snow Profile
Aspect: 
Northwest
Elevation: 
9600
Slope Angle: 
15
Comments: 
Loose snow/sluffing in steep terrain. Was able to start sluffs at Twin Lakes Pass and in East Bowl.
Today's Observed Danger Rating: 
Moderate
Tomorrows Estimated Danger Rating: 
Moderate
Snow Profile Coordinates: 
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