Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Observation Date:
April 16, 2021
Submitted:
April 16, 2021
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Silver Peak

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Wet Loose
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
NTL
Aspect:
E
Comments:
Observed naturally triggered wet loose on E aspect of humpback at 1130 from the top of Silver Peak. Gained a lot of speed and entrained a lot of snow on the way down, difficult to gauge size.

Signs of Unstable Snow

None reported

Observations

By 1030 on N aspects at 4,00 feet the snow was very soft.

At 1115 on E aspect (5300 ft), person in party kicked off a roller ball and it built to about 3.5-4 ft in diameter before breaking.

Also oberved a slab avalanche, likely human triggered (evidence of high marking) at NNE aspect at 5200 ft below summit of Silver Peak.

Media

Oberved a slab avalanche, likely human triggered (evidence of high marking) at NNE aspect at 5200 ft below summit of Silver Peak
At 1115 on E aspect (5300 ft), person in party kicked off a roller ball and it built to about 3.5-4 ft in diameter before breaking.
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