Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Observation Date:
April 11, 2021
Submitted:
April 11, 2021
Zone or Region:
Stevens Pass
Activity:
Skiing/Snowboarding
Location:
Skyline

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Dry Loose (Sluff)
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
NTL
Aspect:
S
Comments:
Large slides on Lichtenberg south visible from Hey 2.

Signs of Unstable Snow

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

Observations

Cold snow transitioning to hot pow from 0700-1100. Solar aspects had wet point releases while cold aspects were skiing stable. Mid-storm density change from Saturday's periodic sun was present on W-S-E. Some local underfoot collapses and surface hoar in AM. Most of today's observation will be ephemeral as sun and warming temps will likely lend to a more seasonable spring pattern this week.

Media

This surface hoar has melted by the time you read this.
"It's mountain bike season, bro!"

Advanced Observations

Observed Avalanche Problem #1: 
Wet Loose
Comments: 
How pow falling down on solar aspects.
Observed Avalanche Problem #2: 
Cornice
Comments: 
Staying vigilant with cornices as weather warms seems prudent.
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