Observation: Murdock Peak

Observation Date
11/4/2019
Observer Name
Grainger
Region
Salt Lake
Location Name or Route
Murdock Peak
Weather
Sky
Clear
Wind Direction
West
Wind Speed
Light
Weather Comments
Warm, clear, sunny with overall light winds but moderate westerly/north-westerly gusts throughout afternoon/evening
Red Flags
Red Flags
Wind Loading
Poor Snowpack Structure
Red Flags Comments
Overall the PC Ridgeline’s only continuous snow lies on NNW through ENE aspects above ~8800'. Though the snowpack along the ridgeline's starting zones is very thin, that in place has a poor structure with multiple melt-freeze crusts and weak interfaces. Testing a NE-facing site around 9000' no column failure due to lack of a slab. However, coaxing a few SSTs did present Q2 failure below the lower crust associated with the 10/18-10/20 snow. One concern would be these interfaces staying weak until a storm slab falls on top with enough SWE to propagate this layer. Even though discontinuous, I can imagine a number of the PC ridgeline start zones with enough October coverage to cause notable failure. The other is isolated wind slabs that have been forming close to ridgelines since the 10/27 pulse. With their continued formation this high pressure, trying to keep track of wind-loaded features will help avoid issues with their burial in the next snow.
Comments
39 HS with 2 crusts present, the lower ~20 cm down of more concern.
Notable snowpack only continuous in high and north locations.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Low
Coordinates

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