Observation: Mill D North

Observation Date
2/10/2019
Observer Name
mark white
Region
Salt Lake
Location Name or Route
Mill D, Butler Fork
Weather
Sky
Broken
Precipitation
Light Snowfall
Wind Direction
South
Wind Speed
Strong
Weather Comments
Broken skies until around 2:30 when the clouds dropped in and it started snowing, strong winds from the S SW increasing and getting down low in the drainages as the day progressed.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Low
Snow Surface Conditions
Powder
Wind Crust
Snow Characteristics Comments
There was about 4 inches of light density snow from last night, powder in wind sheltered terrain, wind crust, wind scouring and wind slabs in wind exposed terrain.
Red Flags
Red Flags
Wind Loading
Comments
Travel today was up Mill D and out Butler Fork, skied SW which was wind scoured in the top and on the verge of being damp in the bottom. Then a run on wind protected N facing which still had creamy settled powder with the new light density on top. And finally a run on W facing wind protected into Butler Fork. The wind was cranking on the ridge line moving snow, forming dense and sensitive cornices and cross loading slopes that are E and W facing, and loading the N facing down lower on the slope than usual. The wind was the main concern today seeing that it only snowed 4 inches of light density snow that did not add much weight to the snow pack. Saw a fairly large cornice drop on the NE facing part of Reynolds Peak not sure if it was natural or human triggered but in any case it did not produce any avalanche activity. I’m thinking the avalanche hazard will remain considerable with the wind loading and more snow in the forecast for tonight
Photos: Reynolds face with a cornice drop on the NE facing, sensitive cornices on the ridge line, and the incoming storm
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable

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