| Trigger | Natural | Remote Trigger | Unknown |
| Avalanche Type | Unknown | Aspect | East |
| Elevation | 3400ft | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Summit
Location: Summit
5-8cm new snow (+) over windslabs (/)
From road valley fog & storm crust quickly dissipated by 1400′, sunny & mild; HS 90cm, 12/1 crust 35cm down;
1850-2350′ large collapses up to 50′ radii, dug down cracks, failing at bottom of wind transported snow, HS 115-130cm
12/1 crust 40cm down from surface; no collapses felt above 2350′
HS variable above nature’s tree line (5-170cm+), windward side in alpine virtually stripped to ground in places,
see photo @ 2700′
Despite dusting of + could see wind pattern across valley
Avalanche Details
isolated minor loose in gullies mostly obscured by new snow
Obvious signs of instability
| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observer Comments
recent Wx, wind texture, stripping & loading patterns, pretty loud collapses
Weather
25*F, valley fog to 1450'; wind 0-2 mph becoming 5-10 @ 12h & increased elevation, moving snow @ 3000' and above for 90 minutes then becoming calm. Clouds to SSE did not push in by 1620h
Snow surface
5-8cm new over windslabs of varying thickness
Snowpack
resistant at 12/1 crust & moderate to hard in hand shears above that
12/1 crust has less bonded crystals between 2 more frozen layers
see Snowpilot
wind pattern
crystals from middle of 12/1 crust
Gilpatrick pit