Avalanche: Douglas Island

Location: Ben Stewart

Date:
Observer:
Route & General Observations

Skied up platter pole route up into wedding bowl to the top of Ben Stewart. 3 crowns mentioned under red flags section of this report. 3 tracks already in wedding bowl and one track on Stewart Headwall.

Avalanche Details
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Trigger SkierAvalanche Type Soft Slab
Aspect EastElevation 2900ft
Slope AngleunknownCrown Depthunknown
WidthunknownVertical Run 900ft
Near Miss / Accident Details
Avalanche Details

Skied down the spine of the Ben Stewart; this is the rib above the cliffs lookers left of Cropley Chute. In the upper part I did not find any signs of instability, cracking or wind slabs as I made my way down. There is a short chute halfway down, I ski cut the top with no results. I dropped in and peeled out to the right as the slope broke loose. I wasn't carried but held tight with poles dug in off to the side as the slide passed. I yelled to let people know that snow was on the move. There was another party in Consolation Bowl who saw me skiing down and kick off the slab. They were off to the side, I skied the bed surface and then traversed over to meet up with them. They said not much made it down into the bowl or to the base of the rib. We were unaware of how much wrapped into the Cropley chute side. We skinned up consolation bowl, contacted ski patrol when we were in cell phone reception and were informed of the Stewart Headwall slide. We skinned up to check on that party (who were ok) and reported back to ski patrol. Upon the exit we saw how much larger the slide was than perceived and searched the debris pile. We rode the chair up and debriefed with Ski Patrol.

Events of the day

The day prior (Saturday) had a fair amount of avalanche activity with the early morning storm and we attributed the crowns to this day. Snow on Saturday dissipated mid day, the winds decreased and it cooled down.

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

Upper Wedding Bowl had a crown on the North facing aspect (~100' wide) as well as the slope lookers left of the big cornice on the up track (~50' wide). There was another crown on the back side of Fish Creek Knob (~50' wide). These were all believed to be from the day prior.

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

Sunny, Winds 10knots from the North

Snow surface

Powder, wind effected snow up higher on windward slopes.

Snowpack

Dug in lower wedding bowl 2415' elevation, N Aspect (338Deg), 25 Degree slope
CT15 Q1 35cm
CT18 Q1 40cm
ECTP15 Q1 35cm

Photos & Video
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