Avalanche: Turnagain

Location: Center Ridge

Date:
Observer:
Route & General Observations

Went out Center Ridge with two eager Canadians. Aborted my Plan A due to red flags present (whumphing, shooting cracks, tons of wind loading previous and current) as well as the wind loading patterns were widespread and variable, my confidence in avoiding windslabs was very low.

Avalanche Details
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Trigger NaturalAvalanche Type Unknown
Aspect UnknownElevationunknown
Slope AngleunknownCrown Depthunknown
WidthunknownVertical Rununknown
Observer Comments

Several small D1 Natural wind pockets had released during last night and observed through the day. I would imagine a human trigger would initiate larger wind slabs.

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

3 whumphs while traveling out Center Ridge. 1 significant shooting crack.

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

Sunny. Strong NW winds transporting snow all day. Temps in low teens.

Snow surface

Widespread variable wind effect.

Snowpack

1 snowpit dug near the end of Center Ridge at 2,100 ft SW aspect, 20 degree slope. The target was to observe the state of the mid January rain crust and facets, as well as see if buried surface hoar was present out there. Surface hoar was barely there and unreactive but it's only one hole. ECTP28 on 1mm facets above the rain crust, 55cm down. See photos below.

Photos & Video
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