Avalanche

Tuckerman Ravine

CaitlinPresidential Range
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Quick report

Charlotte, Cooper, and I climbed up to the March 11th snowboarder triggered avalanche in Tuckerman Ravine around 12pm. Although it was warm in the sun we observed limited solar gain on the surface snow. The average depth of the debris was .5m and deepest observed was 1.5m. It's worth noting that some of this debris was from a previous avalanche, and while it may have been easier to discern on Tuesday, the refrozen surface made it difficult. The toe of the debris was at 4468ft. The surface area was .8 acre. After discussion, I'd categorize this avalanche as WS-AR-R3-D1.5 as it's a medium avalanche relative to the path. Since it was a wet slab and with an average depth of .5m, felt as though it could certainly knock someone off their feet and potentially bury, making it 1.5 on the destructive scale. Generally poor skiing conditions all around.

Weather

Air Temp
29.5
Cloud Cover
clear
Wind Loading
none
Recent Snowfall
NO
Snow Avail For Transport
none

Clear skies in the morning. Light winds with intermittent stronger gusts. Increase of clouds and overcast sky around 2pm.

Snowpack

Hard refrozen surfaces from warming the day before. Especially bumpy and textured on areas that had been skied. Generally poor skiing conditions all around. No warming observed on solar aspects.

Avalanche

Size
D1.5 R3
Type
WS
Aspect
E
Trigger
AR
Elevation
4468 ft