Observation: Avalanche Professional

All Observations

Basic Information

Observation Details

Observation Date:
January 13, 2023
Submitted:
January 13, 2023
Observer:
Avalanche Professional - Trevor Kostanich
Zone or Region:
Snoqualmie Pass
Location:
Alpental Valley/Pineapple Basin

Signs of Unstable Snow

Recent Avalanches? 
Yes
Cracking? 
None Experienced
Collapsing? 
None Experienced

Media/Attachments

recent avalanche off Draftdodger Ridge into Pineapple Basin
recent wet avalanche off Pineapple Pass
recent avalanches below Bryant Peak Couloir

Advanced Information

Weather Summary

Cloud Cover:
Overcast
Wind:
Light , SW
New/Recent Snowfall:
Ski pen 35cm with top 15cm wet snow over settled storm snow

Obscured skies with moments of overcast, scattered rain showers all day.

Observed many recent wet avalanches and some live wet avalanches.
3 recent wet avalanches ran climber's left of Big Trees (starting in Unicorn/Orbit area of Alpental Back Bowls). NE, 4100', D1-D2.
Saw active wet loose off Draftdodger Ridge into Pineapple Basin. NW, 4580', D1.
Recent wet avalanche off Pineapple Pass that ran ~300' down middle of upper basin. Guessing Wet Slab but difficult to see. N, 5220', D2.
Recent wet avalanches below Bryant Peak Couloir exits.
Recent wet avalanche through gulley at top of Source Lake Apron.
Recent wet avalanches from SW slopes above summer trail with some running to summer trail.

Snowpack Observations

At bottom of Pineapple Basin 1:15pm: 4410', NE, Hs 265cm
Top 15cm wet snow, dry settled storm snow below to Christmas crust down 85cm.
Low quality fractures (progressive compression) at 15cm down in shovel tilt and small column tests.

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