Northern San Juan

Avalanche

Erin Laine · Dec 14, 2019 · Northern San Juan

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Weather

Overcast all day with intermittent light S-1 snowfall, calm winds gusting to swirly moderate, temps below freezing and growing colder throughout the day

Snowpack

The 10-15cms of new snow showed signs of slab development, shooting cracks and failure at new snow old snow interface with informal tests. Ski pen 12-15cms, boot pen 30-35cms. Graupel layer at snow surface mid morning.

Avalanche

Very small loose snow movement on convexities