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Observation: Lake Martha

Observation Date
12/30/2023
Observer Name
Kelly
Region
Salt Lake » Big Cottonwood Canyon » Lake Martha
Location Name or Route
Upper Big Cottonwood Canyon
Weather
Sky
Overcast
Precipitation
Light Snowfall
Wind Direction
Southwest
Wind Speed
Light
Weather Comments
Overcast to broken sky cover (graybird sky conditions) with sporadic winds primarily from the west-southwest. A couple periods of light snowfall with no real accumulation to speak of.
Snow Characteristics
Snow Surface Conditions
Faceted Loose
Melt-Freeze Crust
Snow Characteristics Comments
Travel on all aspects from elevations 8600' to 10,500'. Snow surface varied from near surface facets to warming to breakable melt-freeze crust.
Avalanche Problem #1
Problem
Normal Caution
Trend
Same
Problem #1 Comments
I saw some dry loose facet sloughs in the top 2-3" of the snow surface. This was initiated by rider tracks and isolated to steeper terrain and would not have been enough to knock anyone off their feet.
Snow Profile
Aspect
Northeast
Elevation
9,800'
Slope Angle
29°
Comments
Snow height varied but the average was around 3' with a bit less snow on west and southerly facing aspects. The dry loose on the surface was sitting on top of a very friable melt-freeze crust that didn't affect travel on northerly facing slopes. In this location the PWL from earlier in the season was not reactive and the weak faceted snow from prior to Christmas (December 20th) was not a player. IF you could find a location with wind-loaded snow over this layer you might be able to trigger an avalanche, but I didn't find these conditions where I traveled today.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Low
Coordinates