Professional Observation
Basic Information
Observation Details
Observation Date:
February 11, 2022 - February 11, 2022Submitted:
February 11, 2022Observer:
WCMAC - Ryan SorensonZone or Region:
Central BitterrootsLocation:
Mount Fuji, Lolo PassSigns of Unstable Snow
Recent Avalanches?
None ObservedCracking?
None ExperiencedCollapsing?
None ExperiencedSnow Stability
Stability Rating:
GoodConfidence in Rating:
HighStability Trend:
ImprovingBottom Line
Warm temperatures yesterday followed by a sold freeze last night left a 3 to 4 inch thick (8 to 10 cm) mostly supportable melt-freeze crust up to 6,000 feet on Mount Fuji. While the crust will help bridge and reduce the likelihood of triggering an avalanche on buried surface hoar, our test shows it's still possible given a heavy or properly placed trigger. A deep machine cut or thin rocky patch is the most probable spot.
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Advanced Information
Weather Summary
Cloud Cover:
ClearTemperature:
37Wind:
CalmCalm winds and clearing skies. The temperature reached 43 ° F at 1 p.m., according to the Lolo Snowtel at 5240 feet. We were skinning in t-shirts at 10 a.m.
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