Observation: Chugach State Park

Location: Harp Mountain

Route & General Observations

From Harp Mtn Trailhead, we toured up the lower angle ridgeline that eventually meets up on the north side of Harp Mtn. Once on the west face we encountered 2 whumps and shooting cracks. At 2900′ we dug a pit to check out the snowpack with concerning results.
ECTP11 dn45
PST30/100 End dn45

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)?Yes
Cracking (Shooting cracks)?Yes
Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

The temps above 25degF with a light breeze occasionally gusting to 10-15. Mostly clear.

Snow surface

Wind effected surface, still soft from recent snow.


A layer of facets 45cm down was failing under our weight causing two significant whumps and one that resulted in shooting cracks. See snowpit profile for instability test results.

Photos & Video
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