Alud

Mt Emmons

Evan RossGunnison
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Foto de la observación 1Foto de la observación 2Foto de la observación 3Foto de la observación 4Foto de la observación 5Foto de la observación 6Foto de la observación 7Foto de la observación 8

Quick report

Cracking
specific
Collapsing
specific

Collapses and shooting cracks on easterly facing terrain. Quieter with fewer collapses on SE-facing slopes.

Weather

Cloud Cover
scattered
Wind Loading
light
Recent Snowfall
75
Snow Avail For Transport
large amounts

A few light snow showers with cloud cover decreasing through the day. Light to moderate northwesterly winds at ridgeline with light drifting.

Snowpack

See specific avalanches or video for a few more details. 

Avalanche

Size
D3
Type
SS
Count
3
Aspect
SE
Trigger
N
Elevation
12300 ft

My best estimate is that this avalanche ran during the early AM hours of 11/27. There was about 6" of new snow on the bed surface of the avalanche. Google Earth measures the crown width at over 4,000ft, spanning multiple aspects from NE to E to SE. The length of the avalanche was around 3,000ft, as it ran from a starting elevation of 12,300ft down to 10,900ft. A quick observation on the SE portion of the crown looked like the avalanche failed by collapsing a thin crust capping 5cm of soft and lightly faceted snow. That snow accumulated last Sunday before being buried on Tuesday, 11/26. Here, the crown was 70cm thick with a total HS of 110cm.