Avalanche: Chugach State Park

Location: Glen Alps - Blueberry Knoll, Chugach Front Range

Route & General Observations

From Glen Alps PL toured up the NE aspect of Blueberry Knoll and onto the southern aspect of that ridge. Noted old avalanche debris on the east end of the “Wind Tunnel” below Flattop. Also an avalanche crown adjacent to the Flattop just below the summit. See avalanche report.

Avalanche Details
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Trigger UnknownRemote Trigger Unknown
Avalanche Type UnknownAspect Northwest
Elevation 3400ftSlope Angleunknown
Crown DepthunknownWidth 200ft
Vertical Rununknown  
Avalanche Details

Observed an avalanche crown on the NW aspect of Flattop, a short distance below the summit and to lookers right of the Flattop trail (pic).
Avalanche had to have occurred sometime after the 12/15 snow event. Also observed older avalanche debris near the East end of the "Wind Tunnel" (pic)

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Obvious signs of instability
Recent Avalanches?Yes
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?No
Observer Comments

Recent avalanche on Flattop.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

Partly cloudy. Calm on flats, but gusty N. wind 10-15 on ridgetops. At 1400 was 15deg at Glen Alps weather station.

Snow surface

Abundant wind slab on southern aspects (pic). S. aspect undergoing more wind loading during tour.


Did quick pit on S. aspect just below ridgetop. HS = 94cm. SA = 18deg, Aspect = 214. STMQ2@40cm down, CT15Q2@10cm down. CT15 broke at base of 1F wind slab over 4F rounds. ECT inconclusive.

Photos & Video
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