Skier triggered wet loose in Hyalite (Mt. Bole area)

Mt. Bole
Northern Gallatin
Code
WL-ASu-I
Elevation
9500
Aspect
SE
Latitude
45.42
Longitude
-111.00
Notes

From an email:

Today, at around 11am, my partner preformed a ski cut on the top of a gully. The area he cut was south facing and in direct sunlight. The slough from his cut gained momentum and formed a small avalanche that went down the entire gully and apron, taking all of the previous days snow with it. The avalanche went on the old snow sun-crust, and new snow interface. We ascended from the back and found very stable results in both our pits, although they were both high and north facing. No one was caught or injured.

I had already skied down part of the slope in another gully, that was entirely shaded, and produced no snow movement.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Skier
Trigger Modifier
u-An unintentional release
Bed Surface
I - Interface between new and old snow
Problem Type
Loose Wet
Slab Thickness units
centimeters