Observation: Turnagain

Location: Motorized lot

Date:
Observer:
H. Thamm Professional
Route & General Observations

Riding around on the flats near the motorized lot today. There was about 20″ new snow since yesterday. Winds have been drifting snow and deeper areas were noted. Experienced a large shooting crack on a wind loaded feature on a small test slope. See photos below.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Obvious signs of instability
Recent Avalanches?No
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?Yes
Observer Comments

-Large shooting crack on wind loaded, small test slope with an unsupported slope. Shooting crack was 20' long and 3+' deep. See photos below.
-Rapid loading due to heavy snow and strong winds
-Warming temperatures

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.
Weather

Poor visibility, snowing and blowing
Precip: 20" new snow since yesterday
Ridge top winds at Sunburst Wx station: ENE 40's mph gusting 60's
Temps ~31F
Rain/snow line ~500'

Photos & Video
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Snowmachine test cut on a wind loaded feature caused a large shooting crack  

Crack was 3+' deep in places  

View looking into crack from above  

There was about 20" of new snow since yesterday at the motorized lot  

Winds loading leeward slopes  

Location


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