11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
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Observation Date: 
1/9/2018
Observer Name: 
John Lemnotis
Region: 
Salt Lake
Location Name or Route: 
10420
Weather
Sky: 
Obscured
Precipitation: 
Light Snowfall
Wind Direction: 
Northeast
Wind Speed: 
Light
Weather Comments: 
Snow line was near 8500 mid day and wind was mostly light with moderate gusts on exposed ridge lines on the way to 10420 from guardsmans.
Snow Characteristics
New Snow Depth: 
4"
New Snow Density: 
High
Snow Surface Conditions: 
Powder
Damp
Snow Characteristics Comments: 
Surface snow was shallow and damp at the trailhead and progressively got slightly better. The highest elevation I reached today around 10400' the snow was rather enjoyable to turn in, good base building snow, and good slab forming snow.
Red Flags
Red Flags: 
Recent Avalanches
Heavy Snowfall
Wind Loading
Cracking
Collapsing
Poor Snowpack Structure
Avalanche Problem #1
Type: 
Persistent Weak Layer
Trend: 
Increasing Danger
Problem #1 Comments: 
The persistent slab will be overwhelmed by the new snow and avalanches will have the ability to be large and potentially deadly. Low angle terrain is the norm this season and this trend is not changing with the current storms.
Avalanche Problem #2
Type: 
New Snow
Trend: 
Increasing Danger
Problem #2 Comments: 
I noticed the most recent 4" of snow to be poorly bonded to the old snow surface on what might have been a density change, cracks initiated in this layer. The new dense snow is ideal for slab formation and there is more snow on the way. As the snow continues to pile up small releases from this layer and the storm snow to come could be enough to step down into the depths of the snowpack that is strictly facets.
Comments: 
I walked the ridge line to dig a bit and just poke around today. The snowpack HS was 95cm from the top down it started at fist getting progressively harder to 1 finger directly above the facets at about 40cm then the facets were fist plus all the way to the ground. When I performed an ECT the slab didn't seem quite cohesive enough to stress the facets but the CT easily showed that this is our primary layer of concern. I don't take the test results as something that makes me warm and fuzzy inside rather something concerning to watch for over the next couple of days as the storm progresses and beyond.
Video: 
Today's Observed Danger Rating: 
Considerable
Tomorrows Estimated Danger Rating: 
Considerable
Snow Profile Coordinates: 
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