Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Simon
Observation Date:
February 19, 2021
Submitted:
February 19, 2021
Zone or Region:
West North
Activity:
Skiing/Snowboarding
Location:
Mt Herman

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
5800
Aspect:
E
Comments:

Signs of Unstable Snow

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

Observations

Evidence of Several small (d2 max) natural storm/wind slabs under buttress below the horn from last night.

7-12” new snow above Wednesday sun crust

Good vis - period of cloud and sun in am - intermittent snow after 11am

Blustery conditions starting at 10 am built small, but touchy slabs in the upper elevation terrain

Old crowns/ debris from early feb cycle still noticeable, but only if you are looking for them

Great snow - sun is getting stronger - surprised how fast the solars warmed up

Advanced Observations

Observed Avalanche Problem #1: 
Wind Slab
Comments: 
Wind picked up from west around 10am - moving snow and building 6-10” slabs on leeward ridges
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