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Observation: Logan Peak Area

Observation Date
12/13/2023
Observer Name
Talty, Weed
Region
Logan » Logan Peak Area
Location Name or Route
Logan Peak Area
Weather
Sky
Clear
Wind Direction
East
Wind Speed
Moderate
Weather Comments
It was a beautiful, clear day with moderate East winds. We didn’t observe any active wind loading, as strong East winds most likely already moved the available snow for transport last night.
Snow Characteristics
Snow Surface Conditions
Powder
Snow Characteristics Comments
Excellent riding conditions on slopes protected from the wind.
Red Flags
Red Flags
Poor Snowpack Structure
Red Flags Comments
We didn't observe any red flags other than poor snowpack structure in our pits. The signs of instability are not obvious until you get beneath the snow surface.
Avalanche Problem #1
Problem
Persistent Weak Layer
Snow Profile
Aspect
Northwest
Elevation
8,800'
Comments
We went to the Logan Peak area to check out how the strong East winds last night and this morning affected the snow surface. Slopes exposed to this wind were stripped of soft snow and peppered with raised tracks. Excellent riding conditions exist on slopes protected from the wind. At upper elevations, we dug and probed to observe the early season storms that have rotted away into weak, faceted snow. ECTs propagated within this weak snow with moderate force (ECTP 19 and ECTP21 @ 25 cm above the ground), and we still don't trust them in this area. Additionally, we observed multiple road-cut pockets that that popped out on these basal facets from a snowcat up the trail ahead of us (a few pictures below).
Conditions like these reiterate the importance of digging beneath the snow surface. We did not observe any recent avalanche activity or collapsing in our travels, but as soon as we dug to the ground the poor structure was obvious. In the Logan Peak area, the snowpack is shallower than the central Bear River range, and therefore more concerning. Dangerous avalanches are possible on upper-elevation slopes harboring weak, faceted snow close to the ground. These avalanches will be easier to trigger in areas with a shallow snowpack, in areas that have been stripped by the wind, or areas close to cliff/rock bands. However, a ton of fun can be had in non-avalanche terrain, or at lower elevations where these facets are not present.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates