Avalanche

Above Source Lake Approach, Above Summer Trail

Patrick LaneSnoqualmie Pass
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Quick report

Cracking
isolated

Around 60 cm of storm snow above the Atmospheric River crust in open areas and around 30cm n forested areas. Some cracking in open areas. The surface snow became noticeably denser as it warmed throughout the day. Isolated cracking in the me storm snow mostly apparent n open areas and less so in forested areas.

Weather

Cloud Cover
broken
Wind Loading
moderate
Snow Avail For Transport
large amounts

Variable snowfall throughout the day with little accumulation. It warmed noticeably after noon.

Avalanche

Size
D1 R1
Type
SS
Aspect
S
Trigger
N
Elevation
4100 ft

While observing the steep slope above the summer trail, we saw this crown fracture and run roughly 300’.