Observation: Chugach State Park

Location: Harp Mtn.

Route & General Observations

Saw recent D2 avalanche Activity and cornice break on NW face of Harp main bowl. This avalanche was a cornice break onto wind slab with a step down into persistent layer. Recent avalanche in Swiss bowl.
Dug a pit just of NW face, adjacent to recent avalanche. 3380′, 320 (NW), 22 degree incline. CTM 20 down 25cm. ECTN22 down 40cm. Found wind slabs ranging from 3cm to 50cm deep. Dug pit in other location targeting windslab; ECTP21 down 33.

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)?Yes
Observer Comments

some short shooting cracks on wind slabs.
Recent natural avalanches on Harp NW face.
Recent avalanche on Swiss Bowl.
All avalanches were on leeward faces.

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

light to moderate SE wind transporting at ridgetops
Overcast, clearing later in day
Visibility improved as the day went on.
No new snow

Snow surface

wind effected
Overnight freeze line went to about 2500'


Lot of layers from this parade of storms. Slight temperature changes created multiple interfaces within the new snow.

Photos & Video
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