11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
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Observation Date: 
12/24/2017
Observer Name: 
mark white
Location Name or Route: 
PC Ridgeline
Weather
Sky: 
Overcast
Wind Direction: 
Southwest
Wind Speed: 
Light
Weather Comments: 
Some what warm with increasing clouds throughout the day, light wind from the SW.
Snow Characteristics
New Snow Depth: 
15"
Snow Surface Conditions: 
Powder
Dense Loose
Snow Characteristics Comments: 

The new snow was settled powder in wind sheltered areas, inverted, thick and slabby in wind exposed terrain.

Red Flags
Red Flags: 
Recent Avalanches
Cracking
Collapsing
Poor Snowpack Structure
Comments: 

Was expecting to see more avalanche activity than I did today but some crowns were blown in and the light was flat most of the day. I did note avalanches in No Name Bowl, far right corner of South Monitor, West Monitor in the middle and one fairly decent size slide on the West Willow ridge line. I also took a look at a slide on the riverbank just above Buttler that looked like it was triggered late in the storm by a snow plow, it only ran 20-30 feet down into the creek but it was well connected and was around 100ft wide. None of the slides we looked at seemed to step down to the ground and it appeared most ran above the Thanksgiving Day crust.

Photos: shooting cracks from a collapse we triggered in No Name Bowl, and the river bank slide.

Not sure how you could go with anything except considerable on steep slopes with old snow underlying them that have not slid. There's a slab and weak snow under it, it may need more weight to collapse it, but does that mean the weight of another storm or just the weight of a person? I don't have an answer for this question so I choose to error on the side of getting out of the mountains in one piece.

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