Northern San Juan

Avalanche

Edward Degitis · Jan 6, 2023 · Northern San Juan

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Weather

Gladstone. Time 1440. Elevation 10,612ft. Aspect 290degree. Sky SCT. Wind Dir SE. Wind speed Calm. Blow Snow None. Precip none. Air temp -9C.

Snowpack

Gladstone. Time 1440. Elevation 10,612ft. Aspect 290degree. Incline 35degree. HS 157cm. Pen Boot N/O. Surface - 45cm: F, Grain + 45-65: 4F, / 65-95: 1F, / 95-110: 4F, 1-2mm Facets 110-157: F, 3-4mm Depth Hoar STM down 45cm. STE down 110cm. CTE5 down 45cm. CTH21 down 110cm SP. ECTN27 down 95cm. ECTX, buried rock may have skewed results. ECTP31 down 110cm. I know this is not a technical test result, but worth noting. Low probability, high consequence.

Avalanche

Tons of natural persistent slab avalanche breaking to ground on W-N-E aspects at all elevations. No moving snow underfoot while skiing. No cracking, whumpfs, or other signs of instability.