Recent Avalanches? | No |
Collapsing (Whumphing)? | Yes |
Cracking (Shooting cracks)? | No |
from road up wooded ribs to 3500′, obvious sun crust (SE-SW) below 5-8cm redistributed recent snow topped by 4-5mm surface hoar to 3500′. 2 major collapses, 15m+, from skin track (4th person, 30 mins after trail breakers) 12:30 & 12:40 pm near 2000′. Pronounced airy facet layer 1500-2500′ under 50-60 very soft slab. Moderate hand shears becoming resistant above 2500′
Recent Avalanches? | No |
Collapsing (Whumphing)? | Yes |
Cracking (Shooting cracks)? | No |
wind loading from NNW & down valley winds
clear cold calm, warmed rapidly w/ sun +20*F; cooled rapidly once shaded, 0-2 mph wind after 1530h
dendrite, surface hoar to 5mm, underlying very friable sun crust on southerlies
hand shears, pie cuts, test slopes