Observation: Chugach State Park

Location: Lower McHugh

Route & General Observations

Wanted to get a few turns in considering the wind and loading, stayed low angle.

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

Unsure of whether there were any avalanches on P2/P3 area, coming back as it started to snow I did hear some louder noises that had no obvious source, but visibility was poor at that point. Shooting cracks isolated, but would have expected to see more on steeper slopes.

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

Started out with significant wind, coming down out of Rabbit Creek valley, SE. Gusting at least 30+mph and much more in open areas/higher. Temp right around freezing. After about 4hrs, wind died down to very light and it started snowing, new snow 0.5 to 2cm depending on location.

Snow surface

Wind slab on top, varying thickness, varying consistency, immediately below seemed to be a storm slab from the recent snow, 15-25cm depending on location.


Dug a pit for practice. Aspect NNW, 20° slope. Depth 170cm. ECTP11 (unstable result), failed around 148cm. Appeared to be storm slab failing on small facets. ECTN27 (stable result) around 130, fairly hard slab about 10cm thick.

Photos & Video
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