Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Nate Hough-Snee
Observation Date:
January 1, 2023
Submitted:
January 2, 2023
Zone or Region:
Stevens Pass
Activity:
Skiing/Snowboarding
Location:
Berne Chutes

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Wet Loose
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
6500
Aspect:
S
Comments:
Several impressive wet loose had begun to refill the much diminished post-Christmas rain Bern Chutes.

Signs of Unstable Snow

None reported

Observations

A number of layers from the 27-30 December storms are poorly bonded above the Christmas crust, although stubborn under foot. Surface hoar was developing on crusted solar aspects as of sunset 1 Jan 2023. Boilerplate conditions were edging well on all aspects starting from 3600' downward after New Year's Day's east winds refroze the New Year's Eve thaw.

Media

Breakable refrozen crust on east at 5500' with surface hoar
Surface hoar was forming 1 Jan as moisture evaporated from this recently thawed and refrozen east aspect at 5600'
A WL-N-R3-D2.5 in the Bern Chutes off of Nason Ridge

Advanced Observations

Observed Avalanche Problem #1: 
Wind Slab
Comments: 
Winds have been blowing a variety of directions NTL and ATL, scouring and depositing snow in leeward areas. Quick pits show the last two storms are poorly bonded above the Christmas crust. Layer buried 30 December has the weakest bond in hand pits from 5400' N, 5700' E on an apparent density change in the new-old snow interface.
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