Southern San Juan

Avalanche

john morrone · Mar 1, 2015 · Southern San Juan

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Weather

snowing hard all day, temps increased, snow all become moist, up-side down in PM

Snowpack

20+m inches of storm snow, lighter on bottom sluffy on 35 degree+ sloes in AM, getting heavier, bcoming cohesive slabby on top in PM

Avalanche

AM sloughing changed to soft storm slab in PM, generally cracks could not shoot more than 1ft beyond ski tips on steeps. later in PM rolls and pillow becoame active, 6" soft slabs started steeping down to 2' in places. i BIG woomph shoke trees up to 30 yds away, shooting crack on convex roll for over 40 feet, remote trigger of steep roll steeping down to base of new storm snow, but only ran R1, all at 11, 200' NE faceing from 10 degree slope over 35-40+ degree slope below treeline