Avalanche: Turnagain

Location: Tincan Common Bowl NW Aspect 2900'

Route & General Observations

AVALANCHE REPORTED on Tincan Proper. Was informed that skier number 2 following the same line as skier number 1 and triggered a large avalanche near the top of Proper. It occurred on wind slab, 45 deg angle, the crown was between 3-6 feet. The skier managed to evade being caught. That report is found here:

Common Bowl Report 12/3/20
-4-6″ of low density pow on top of the rain crust.
-Rain crust ended at 2500′ which is conveniently located right at the base of the Common Bowl run.
-Dug a pit on the lee side of the bowl NW aspect. 33 deg slope. 2900′.
Top 15-25 cm blower
25 cm down to 55 cm dense layer
55 cm down to 90 cm slightly less dense
90 cm down to 155 cm more dense

ECTN 12; at the 55 cm interface. Granular interface, well-bonded, not reactive. Hard taps from shoulder did not force separation of layers. Shovel shear showed great bonding occurring.
Moderate shovel shear revealed a layer at the 155 cm depth, breaking on facets, low to medium level of bonding noted.

No red flags noted on our tour of Common Bowl. People were skiing the steepest aspects with some sluffage.

Contact, Location & General Observations
Enter your contact information and a location for this observation. Note that you can submit anonymously, however if you would like to share your name with staff, but not the public, select No for "May we include your name in your observation"
Forecaster Comments

Forecasters will be gathering more information on this avalanche in the field tomorrow. If anyone has any additional details please send them to staff@chugachavalanche.org. Very glad the skier was able to escape and all are ok.

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 SkierRemote Trigger Unknown
Avalanche Type UnknownAspect Southwest
ElevationunknownSlope Angle 45deg
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

See comments above.