Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Charlie Hagedorn
Observation Date:
December 18, 2020
Submitted:
December 18, 2020
Zone or Region:
Stevens Pass
Activity:
Skiing/Snowboarding
Location:
Stevens Pass

Signs of Unstable Snow

None reported

Observations

Quiet day with fresh snow in lower-angle trees. Good skiing, minimal instability noted. Plenty of smiles among those making Friday laps.

Weather: overcast all day, light/moderate precipitation from ~10 am onward, varying snow-crystal types, perhaps a little bit of mist mixed in in the afternoon as high as the ridgetops. Light winds, even at the ridgetops. Liquid precipitation as we reached the car -- car-roof accumulation was slush.

An endless conference call provided ample opportunity for snow-profiles as a way to stay warm. On open N/W slopes at 4.8-5k, including a ridgetop, instability seemed confined to storm layers well above the crust. ECT didn't propagate, but CTM on two layers 15-30 cm down. Buried hoar didn't seem evident in my profiles.

Media

Profile photo from the N side of the small ridgeline burn near the top of Yodelin. Site is surely wind-affected. Height of snow 120 cm. The crust/new-snow line is prominent, as is plenty of stratigraphy within the snow since 12/9.
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