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I was skiing East of Mt. Curry above Pemberton
today. We found that the Dec 3/4th layer got active mid storm
probably yesterday and triggered many slab avalanches to size
2.5. Many North facing rolls and steeper faces in the upper Tree
Line slid.
The one fracture line I checked out was 130 - 170
cm deep. This slab slid 10 cm above the December ice layer in a layer
of old facets.
We did not see cracking or hear any sounds that
would indicate further instabilities during our runs or during some
ski cutting. But the presence of all these slides was easily enough to
generally keep us off steeper angled terrain. We did not see fracture lines
from slab avalanche activity in the Alpine or Below
Treeline but our observations where limited to one drainage and hampered by lots
of cloud. About 1.2 meters snow fell (at tree line) during the last storm all of
F to 4F density.
The skiing quality was excellent.
Dave Sarkany
Ski Guide
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