Avalanche: Turnagain

Location: Seattle Ridge

Route & General Observations

Quick ride up to the Seattle Headwall, eastern end that looks back at the road. Lots of folks out enjoying the warm springlike day, both in the parking lot and along the ridge.

Avalanche Details
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Trigger NaturalRemote Trigger Unknown
Avalanche Type Wet Loose SnowAspect South
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

A handful of small wet loose avalanches on southerly aspects due to warming by the sun midday. Many rollerballs as well sun-triggered.

On the drive out we saw what looked like two wet loose slides on the SE face (roadside) that triggered small slabs around a foot deep. No photos of these. They were between the parking lot and the up-track on the steep face and one ran to the bottom of the slope while the other stopped mid-slope.

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

Warming snow surface on southerly aspects to do warm ambient temps and direct sunshine.

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

Sunshine! Temperatures seemed to be in the mid 30'F, calm winds.

Snow surface

Surface crusts up to 2,000 - 2,500'. Softening midday.
Above 2,500', soft settled powder on north aspects. Damp soft settled powder on solar facing slopes midday (will likely be a surface crust now the sun has set).


No snow pit tests today.

We glassed around with the binos from the ridge and could see much of the skier side and the back side of Seattle. It looked as though folks are starting to push into the steeper terrain - slowly. We could not see any new avalanches triggered. Good signs for sure that the worrisome layer of buried surface hoar (2-3' deep) is starting to adjust. Meaning it's becoming less reactive and less likely for us to trigger. That said, these layers take time to heal and there's a good chance it's still possible to trigger a slab 2-3' deep like the ones last weekend.

Photos & Video
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