Valanga

Upper Kendall Lakes

John Wayne SeitzlerSnoqualmie Pass
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Foto dell’osservazione 1Foto dell’osservazione 2Foto dell’osservazione 3

Quick report

Cracking
specific
Collapsing
specific

Near-crust faceting is the weak layer that wind blown/and any lingering snow is failing on. On E, SE, and S aspects above 4900ft the problem is very easy to find, evidenced by shooting cracks and whumpfing. Snow was consolidated, firm, and travel conditions were poor, until we hit 4900ft. At this point the snow transitioned to light and fluffy snow with visible signs of wind transport. We started performing hand shears with incredible result. Clean break shears on 4 hand shear tests performed. 200ft from the ridge, our lead skier triggered a windslab avalanche on the crust interface, there was visible near-crust faceting, making for an incredibly clean break and fast running avalanche.

Weather

Air Temp
28
Cloud Cover
scattered
Wind Loading
intense
Rain Elevation
4700ft
Recent Snowfall
18cms
Snow Avail For Transport
moderate amounts

Snowpack

Snowpack changes from firm consolidated snow to a crust with near faceting and fresh/windblown snow at 4900ft and above.

Avalanche

Size
D2 R4
Type
HS
Aspect
S
Trigger
AS
Elevation
5400 ft

2025/01/11. 1310. Upper Kendall Lakes. SE/E. 33degrees. 5400ft. HS, AS. D2. I. Near crust faceting. 1F. 2025/11/10. 60 meters wide. 40cms thick. Slab was 4f hardness. 40 meter fall.