Observation: Turnagain

Location: Petes North

Route & General Observations

Standard skin track to 2750′ on ridge. Specifically choose this end of the Pass to observe NW winds getting channeled from the south and to look at recent storm snow depth compared to the northern end over the buried surface hoar layer.

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

Wind loading
One small recent natural avalanche on south side of Lipps up the Petes Creek drainage

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

Mostly clear with some valley fog towards the arm
Temperatures in the single digits
Winds from the south increasing around 11:00 am, 10-20 mph, moving surface snow and flagging along ridgelines.

Snow surface

Surface hoar over 4" of faceting snow over melt-freeze crust to around 1300' 3 moose lounging in the meadow along the powerline
1300-2300' surface hoar over 4" of faceting snow over settled powder
2300-2750' surface hoar was getting blown over with southwest winds, light wind texture becoming a wind skin along the ridge, loading onto the north side. Under the 4" of recent snow there was a very thin rime crust from 1.23.


We dug at 2200', N aspect, 26° slope, HS: 180 cm, pit depth 105 cm, 1.28 buried surface hoar down 10 cm visible in pit wall but really easy to see with shovel tilt, with only 10 cm/4" of faceted snow on top of this layer there was no slab, the interface from the 1.23 storm was down 20 cm (faceting decomposing precip particles), CT 24, CT 22, ECTN 24, snowpack below is right side up, 1F trending to Pencil hardness.

Photos & Video
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