Observation: Chugach State Park

Location: Chugach Front Range Flattop

Route & General Observations

Left Glen Alps PL at approximately 11am and toured along the NE aspects of Blueberry Knoll and to treeline at 2400ft on the NE aspect of Flattop. No signs of recent avalanches in my viewshed (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?No
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?Yes
Observer Comments

Ski cutting on steep rollovers produced shooting cracks and sloughing of a 1F 10cm thick wind slab overlying decomposing stellers. Moderate hand shears of same slab (pics).

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

Partly sunny skies. At 1400 was 30degrees with light S. winds

Snow surface

Snow surface was the usual mixed Chugach front range bag with everything from loose snow in protected areas to wind board on open slopes (pic). Considerable signs of recent snow transport and thin slab develpment. Wind transport and slab development probably due to high E winds in the early am on 3/13. The Glen Alps weather sta. reported winds gusts up to 41mph in the early am. Upper part of Blueberry Knoll striped clean of snow.


Did pit at 2400ft and near treeline on the N aspect of Flattop (attached). HS = 70cm. Got STC of wind slab @65cm. STH@30cm. CT22Q2@44cm. ECTX.

Photos & Video
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