Northern San Juan

Snowpack

Silverton Avalanche School AIARE Level 1 · Jan 24, 2015 · Northern San Juan

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Weather

Base of Oh Boy Broken clouds Air temp 30 F N aspect 11,240 ft.

Snowpack

Base of Oh Boy, N aspect, 11,240 ft. Obvious signs of instability: Recent avalanches: None Collapsing: No Cracking: No Surface snow: 1 mm near surface facets Buried surface hoar, upright and intact 15 cm below surface. HS 135 cm CTM 12 Q2 BSH layer ECTX, CTH 24 Q3 20 cm from ground 3 mm facets (4F) with 1 F + mixed forms above above