Northern San Juan

Avalanche

Jasper Thompson · Oct 20, 2018 · Northern San Juan

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Weather

Very comfortable weather from treeline up. 0855 at 3614m on a ridgeline with southerly exposure CLR sky, 0ºC, HS 30cm, foot penetration 30cm, moderate SE wind, blowing snow none 1100 at 3774m in NE facing couloir CLR sky, -2.8ºC, HS 55cm, foot pen 50cm, calm wind, blowing snow prev

Snowpack

See attached. Near surface facets exist on snow surface. No faceting noted within snowpack. Ground is muddy and not yet frozen on this above treeline northeasterly aspect.

Avalanche

20181016 U-N-R1/D1-U 20m x 60m middle of path 37.9051º -107.7365º 38º slope soft slab release of recent snow, possible wind slab due to isolation of event