Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Observation Date:
February 27, 2021
Submitted:
February 28, 2021
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Avalanche Mt

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Soft Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
4800
Aspect:
W
Comments:
First skier to drop kicked off sluff, and sluff stepped down and triggered a larger slab. Crown propagated, total width 120. Ran on a firm but disintegrating crust, probably the rain crust from the river.
Photo:

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
Aspect:
Comments:
Bryant had an impressively long slide sometime during the day, looked like there was also a step down double crown at the top.
Photo:

Signs of Unstable Snow

Did you see shooting cracks? 
Yes, Isolated
Did you experience collapsing or whumpfing? 
No

Observations

Sun did bake open south steeps. We took a peek into Thunder basin, and it appeared that slot and crooked had not slid, no ski tracks, but there was a lot of wind effect visible down in the lower fan.

Media

WordPress Lightbox