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Observation Date: 
02/23/2018
Observer Name: 
CBrown
Region: 
Uintas
Location Name or Route: 
Chalk Creek
Weather
Sky: 
Obscured
Precipitation: 
Light Snowfall
Wind Direction: 
West
Wind Speed: 
Light
Weather Comments: 
SE winds in the morning, shifting to the W afternoon. No precip in morning, S~1 increasing to S2 around 15:00. Pretty light to calm winds most of the day.
Snow Characteristics
New Snow Depth: 
1"
New Snow Density: 
Low
Snow Surface Conditions: 
Powder
Wind Crust
Snow Characteristics Comments: 

Only about 1-3" between what fell overnight and through the early afternoon hours.  

Red Flags
Red Flags: 
Wind Loading
Cracking
Poor Snowpack Structure
Red Flags Comments: 
Some light windloading was observed through the day. Found some soft sensitive windslab on a north facing ridge about 12" deep, ran over hard slab old wind slab and stepped down midslope another 12" loose dry. Observed strucutre on slope and in pit was about the poorest I've seen latley. I have also observed over the past week or so cornice growth has begun to form some soft sensitive looking cornice, also found some old stubborn larger cornice.
Avalanche Problem #1
Type: 
Wind Slab
Trend: 
Increasing Danger
Problem #1 Comments: 

Some soft sensitive shallow wind slabs around and some old larger harder welded feeling wind slabs as well.  New, reactive wind slabs were isolated and manageable.  If the winds stay consistent or ramp up I could see this being a larger issue in the tomorrow.

Avalanche Problem #2
Type: 
Persistent Slab
Trend: 
Same
Problem #2 Comments: 

Poor structure observed.  The Thanksgiving rain crust seems to be bridging the very week depth hoar where I looked today, but the crust was not a consistent layer.  Trigger point could collapse the weak layer.  The interface between the crust and the layer above did not seem to be reactive where I looked.

Snow Profile
Aspect: 
East
Elevation: 
10600
Slope Angle: 
46
Comments: 

Picture below of cornice from early this week, that was almost non existent a week + ago.

 

Picture of soft wind slab that stepped down.

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