Northern San Juan

Avalanche

Josh Hirshberg · Dec 22, 2015 · Northern San Juan

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Weather

Storm snow accumulated quickly. Last measured HST was 37cm @ 14:30, but snowfall intensified later in the PM. Moderate to heavy snowfall (S2-S5). Winds trended from Light SW in the AM to Moderate WSW by afternoon.

Snowpack

Upper 50-60cm of snowpack is storm snow since 12/20. Mostly very soft and uncohesive. No cracking or collapsing observed below treeline.

Avalanche

Some minor skier triggered sluffing on steep SW slopes below treeline in the afternoon. Not long-running. More significant natural point releases late afternoon in The Ledges on Hwy 550.