Avalanche: Turnagain

Location: south facing aspect on 3800ft bump just northeast of 4940

Date:
Observer:
Route & General Observations

toured up from granite creek parking lot small bump just northeast of 4940 at 3850

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 Hard Slab
Aspect SoutheastElevation 3400ft
Slope Angle 35degCrown Depth 12in
Width 200ftVertical Run 1000ft
Avalanche Details

Skier triggered D2 hardslab on ski cut. slope felt hollow so made a ski cut but wasn't expecting a result of this size. Slab was about 200ft wide and 2 to 16 inches deep. bed surface was faceted snow. as the hard slab started moving it rapidly picked up the loose faceted surface snow lower on the slope and accumulated a fairly large powder cloud and estimated mass exceeding D2 requirements. slab was hollow, hard and tapered like windslab but persistent forms on bed surface. lower down the run at around 2500ft a small sluff triggered a smaller hard slab. except in obvious windloaded areas, there was really only 8-12 inches of faceted snow over the ground up to 3500 ft.

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

cold, calm

Snow surface

mixed of faceted snow and wind affected

Snowpack

8-14" of faceted snow over the ground in most areas skied

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.