Avalanche

Lake Elsina/Warming hut

Avalanche.org observerSeeley Lake
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Photo d’observation 1Photo d’observation 2Photo d’observation 3Photo d’observation 4Photo d’observation 5Photo d’observation 6Photo d’observation 7Photo d’observation 8

Quick report

We rode from the westside trailhead, up to the warming hut and investigated most sides of the hill behind the hut. 6-8 inches of snow fell overnight, snow depths ranged from 12 inches at the TH to 4 feet at 6,500ft. It rained. And rained all day at all elevations we travelled. W-SW winds were moderate all day with strong gusts. The entire snowpack below 6,000 feet was saturated, and above 6,000 feet a supportive crust seemed to be catching most of the free water. 4-8 inches of old early season snow was present on N aspects starting around 5,800ft, E aspects starting at 6,000 ft, and on S and W aspects starting around 6,200ft. We dug a pit on a SW aspect at 6,200 feet, and found tests to fail suddenly with light to moderate force on top of the old snow. The failures did not propagate, but suspect they would have if the old snow was harder(which it may be on N aspects). We travelled cautiously, and suspect instability was rapidly rising throughout the day.

Avalanche

Size
D1.5
Type
U
Aspect
N
Trigger
N
Elevation
6800 ft

Numerous D1 - 1.5 were observed on N-E aspects above 6,800 feet. We only saw 2 due to visibility issues, but other parties at the trailhead reported that these were wide spread above Lake Elsina. New snow running on the supportive crust.