Valanga

Gunn Creek

Andrew DoughtyEastern Alaska Range
Vedi sulla mappa
Foto dell’osservazione 1Foto dell’osservazione 2Foto dell’osservazione 3

Quick report

While the rest of the snowpack has seemingly started to gain strength and no new avalanches have been observed, it is evident as you look around the summit area that most avalanches broke at the ground. Anywhere that did not slide during the last avalanche cycle still has facets at the ground with snow on top any new loading (new snow or a human) can be what triggers it. Be wary of any spots that have wind loading on top of shallow snowpack. 

A wind slab on top of facets with no other snow to absorb/distribute your weight is a bad formula.

Weather

Air Temp
20
Cloud Cover
overcast
Wind Loading
previous
Recent Snowfall
N/O

Low light day. Calm wind, and warmer temps. Had to wait for one strip of the sun to move North so we could get some turns in.

Snowpack

Did a stability test on a spot just North of Gunn Creek crossing point on an old crown that was 'stepping down' aka had two crowns that broke one deeper in the snowpack. At the upper crown, the previous weak layer that originally caused the avalanche seems to have bonded well enough in this spot. Both the upper and lower crown tests broke at the ground in the facets there. See the snow pit profile for more details.

Avalanche

Went to investigate the wind crowns in Gunn Creek. No recent avalanches observed.