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Winds over the Question Mark
Location Name:
JFS Canyon
Observation date:
Friday, February 14, 2020 - 17:30
Is this an Avalanche Observation:
No
Observation made by:
Public
Tabs
Quick Observation
Toured up to 7400 feet in JFS Canyon this afternoon:
2-5 inches snow overnight with snowfall tapering by late morning. Another inch or so this afternoon with mostly overcast conditions alternating with short periods of broken skies.
Moderate SW winds above 5000 feet were actively loading northerly/easterly aspects near the ridgecrests and building new wind slabs. But ski cuts on small test slopes only resulted in some minor cracking save for one instance with a 15-20 foot long shooting crack in a 8-10 inch thick slab (photo).
Avoided wind slabs in wind-sheltered terrain on a northerly aspect and found good stability and nice riding.
Dug a quick test pit on a northerly aspect at 6400 feet. HS=250 cm. 2/1 crust was 50 cm down from surface with no other crusts present above it (or below it to the bottom of the pit another ~80 cm down). Crust was about 3 cm thick with a 1-2 cm thick layer of facets above and below it. Poor structure but ECTX with the stability test.
Snowpack, Avalanche, Weather Images:
Travel Details
Region:
Flathead Range/Glacier National Park - John F. Stevens Canyon
Activity:
Skiing