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Observation Date: 
01/12/2018
Observer Name: 
Hardesty, Wilson
Region: 
Ogden
Location Name or Route: 
Cutler Ridge to Ogden Skyline
Weather
Sky: 
Broken
Wind Direction: 
Northwest
Wind Speed: 
Light
Weather Comments: 
A few occasional gusts; seemed most of the wind was overnight.
Snow Characteristics
New Snow Depth: 
2"
New Snow Density: 
High
Snow Surface Conditions: 
Powder
Wind Crust
Rain-Rime Crust
Snow Characteristics Comments: 

Skiff at the trailhead to perhaps 2" of small grained graupel up high.  The only game in town is above about 8000' but travel was fast on supportable (bulletproof?) rain crust from the early week storm.  A thin rime crust coats most surfaces above ~8200'.   Some may want ski crampons, axes or whippet ski poles if uncomfortable traveling on slick surfaces.  

Red Flags
Red Flags: 
Recent Avalanches
Heavy Snowfall
Wind Loading
Poor Snowpack Structure
Red Flags Comments: 
Recent avalanches were with the storm earlier in the week likely Tuesday. Encounted no cracking or collapsing today; only poor structure above 8300' or so.............Noted the entire Ben Lomond to Willard Peak headwall naturalled (Tuesday?). Ob posted.
Avalanche Problem #2
Type: 
Persistent Slab
Problem #2 Comments: 

Poor structure above, conservatively, 8300' on shady aspects.  Below this elevation, a 10-15cm thick rain crusts caps either damp snow or something more hollow (older facets) or rounding facets. 

ECTP 17,21,25 on facets a few cm above the glacial ice layer. HS-75-100cm @8500'.

 

Comments: 

Snow depth at 7000' - 40cm with 8cm rain crust cap.  

Snow depth at 8000' - 55cm with 14cm rain crust cap.

Snow depths at 8600' - 75-100cm; thin 1cm crust down a few cms with new rime crust. 

Rain crusts well depicted below.  Agree with DeBruin, et al - https://utahavalanchecenter.org/observations/35297 from Thursday's obsevation that we may have a new ground level to work with at least up to 8200', give or take.

Really cool riming and deposition along the higher elevations.  See pics below -

Danger rating somewhere between "scary Moderate" and "Considerable".

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