Support the forecast! Support the forecast!

Give to Friends of the Chugach National Forest Avalanche Info Center.

Avalanche: Turnagain

Location: Tincan Trees

Date:
Observer:
Route & General Observations

Standard Tincan uptrack

Avalanche Details
If this is an avalanche observation, click yes below and fill in the form as best as you can. If people were involved, please provide details.
Trigger SkierAvalanche Type Soft Slab
Aspect SouthwestElevation 2300ft
Slope Angle 38degCrown Depth 12in
Width 70ftVertical Run 5ft
Avalanche Details

Multiple small soft slab avalanches in the new storm snow and wide spread fracture and cracking along specific terrain features (especially steep rollovers.) Most significant activity was noted where there was active wind transport at the @2300ft elevation level; largest was D 0.5-1 @ 100ft length crown with 12 in depth.

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)?Yes
Cracking (Shooting cracks)?Yes
Observer Comments

Avalanches, Shooting Cracks and Whumphing. A few small releases remotely triggered in the valley (see photo) especially where there was minimal wind effect prior to new storm snow. It was easy to find table size soft slabs in specific terrain that could be triggered by skier weight. Abundant shooting cracks and fracturing of soft lab but with minimal energy. However, it was also possible to find larger pockets (up to 100 ft in size reactive to skier trigger especially at tree line where wind was actively transporting snow into fresh wind slab with more energy and larger volume snow movement.

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

Light to moderate snow fall. Moderate winds with strong gusts at 2500 ft level. Temperatures steady during day; high twenties at 1000 ft level and low twenties at 3800 ft.

Snow surface

New snow powder surface with wind some wind effect above 2000ft.

Snowpack

New snow on crust or wind effected snow.

Photos & Video
Please upload photos below. Maximum of 5 megabytes per image. Click here for help on resizing images. If you are having trouble uploading please email images separately to staff.