Observation: Public

All Observations

Observation Details

Name:

Hough-Snee, Primomo

Observation Date:

December 30, 2022

Submitted:

December 30, 2022

Zone or Region:

East Central

Activity:

Skiing/Snowboarding

Location:

Tumwater Canyon

Observed Avalanches

Did you observe any avalanches?

Yes

Avalanche Type:

Soft Slab

Size:

Size 1: Relatively harmless to people

Elevation:

4000'

Aspect:

N

Comments:

Multiple D1 storm slabs from peak overnight precip December 29-30.

Signs of Unstable Snow

None reported

Observations

25-30cm of new snow on top of the Christmas rain crust. This ice lens is stout and steep rollovers don't provide any guarantee of edgeable bite.

Media

Wind transport picked up in the pm on ridgelines BTL.

Four storm slab crowns on one NW slope around 3600', all breaking on new - old interface to 20cm. SS-N-R1-D1

Natural storm slab on NW 3500' that broke SS-N-R1-D1

Advanced Observations

Observed Avalanche Problem #1:

Wind Slab

Comments:

Westerly winds building shallow slabs on leeward (easterly) ridgelines and scouring down to within a few cm of the Christmas crust on west.

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