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Observation: 10420

Observation Date
3/13/2025
Observer Name
S. Deutschlander, D. Ellis
Region
Salt Lake » Big Cottonwood Canyon » 10420
Location Name or Route
Promiseland - 10,420'
Weather
Sky
Overcast
Precipitation
Moderate Snowfall
Wind Direction
South
Wind Speed
Moderate
Weather Comments
HN 4-6" observed between 1000 and 1500. Snowfall intensity increased around 1100 and then cleared from about 1300 to 14000 and then it picked up again. Winds were gusty, with strong pulses observed out of the South. We observed blowing and depositing snow on lee features.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Medium
Snow Surface Conditions
Powder
Melt-Freeze Crust
Snow Characteristics Comments
The 4-6" of new snow improved ridibng conditions drasticly. The quality between our first run around 1100 and our second around 1400 was much improved despite only recieving a 6" total.
First turns off ridgeline we were exposed to drifting snow. Found shallow wind skin forming on lee features and saw small cornices beging to form.
Red Flags
Red Flags
Heavy Snowfall
Wind Loading
Poor Snowpack Structure
Red Flags Comments
Did not observe any shooting cracks, and were not able to get any old windslabs to pop. All seemed quite welded into place where we traveled although we were in primarily sheltered terrain except for the top of our runs which was the 10420 Ridgeline.
Comments
The snowline seemed to be hovering at 7000' when we drove down around 1500.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Considerable
Coordinates