Northern San Juan

Avalanche

Chris Dickson · Mar 22, 2020 · Northern San Juan

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Weather

Stormy. S-1 to S2 throughout tour. Moderate winds out of SW. Obscured skies. Minimal viz.

Snowpack

HS: 190cm. HN24: 20cm. Over 50cms of new snow from the past few days. At lower elevations and on solar aspects, we found a sun/temp crust that likely formed on 3/20, with 3" of new snow from the past 24hrs. New soft cornices were formed from SW winds along ridgeline.

Avalanche

Observed old crowns on N-facing terrain from human triggered slides from the last few days (Magnolia slide, Frenchman slide) and saw long crown below cliffs adjacent to Gemini (N-facing terrain, approx 11,400').