Recent sluffing in the surface snow.
Evidence of wind moving snow during the storm, old wind slabs, D1-D2
Cornice triggered slide, could only see the start zone.
Observation: Summit
Location: Manitoba
Toured to the top of Manitoba 3700′ and skied the West facing slope.
Observer Comments
Weather
Mostly clear above the fog
Temps in the teens, colder in the valley
Light WNW winds
Snow surface
6-10 " of near surface facets under surface hoar to the ridge.
Wind sculpted and pillowed snow in the upper elevation leeward areas.
Snowpack
The buried Thanksgiving rain crust disappears around 3000'. Average depth above 3000'-3700' was 140 cm.
Dug one pit at 3250'. No indication that NSF/BSH from early December was reactive in this pit. Basal November facets were present but rounding.
Valley Fog
Ridge top surface hoar
Wind effect, wind slab, sluffing and cornices