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Recreational Observation

Up Standard ski track from Maggies to ridgetop and then along the ridge to Maggies trees, Bowling Alley and Kingdome.

Dec. 24, 2016, 10 a.m. PST

Weather: Clear and Sunny, with clouds building and rising from the east through the day.

Snowpack: Two snow pits were dug. First on a NW aspect of maggies ridge, 5400 ft. Snow pack settled on approaching pit location with 30+ ft shooting crack. The 50cm PWL was very prominent at this location and both CT and ECT failed on isolation. A pit dug in the S-SE aspect just up the ridge also showed the 50cm PWL. A CT test yielded CTM SC on the 50cm layer. From the Cool and clear Friday night a new 4-5mm surface hore layer formed. And the morning sun started a thin and localized crust on E-SE aspects. Travel into new areas without an existing skin or ski track resulted in continuing snowpack collapse and wumphing.

Area Description: Maggies pullout to sunrise ridge. A late observation submission, but still some relevant data to report.

Avalanches: On 12/24 several pockets of 8-10cm deep pulled out after being skier triggered on S-SE aspects. These were localized on terrain up to 30 degrees and did not step down to the 50cm PWL. A few natural slides occurred on steep( 40+)south slopes of Sunrise Rock presumably from solar heating. Two Ski cut triggered slides on S-SE faces were observed on steep rollovers to 40+ degree terrain. These did release and/ or step down to the 50cm PWL but did not propagate widely (R1- D0.5-1). Many of the open faces and steeper tree runs in the maggies areas were skied on Saturday with little avalanche activity. However the PWL still exists and should be treated carefully. Image is of sunrise ridge, a heavily skied face just off the rope tow. Three small releases can be seen below the cliff band.

Observation by Sam Luthy

Latitude: 47.977629

Longitude: -123.481951

Did you see any avalanches? Yes

Did you trigger any avalanches? Yes

Was anyone caught in an Avalanche? No