Avalanche: Turnagain

Location: Seattle Ridge

Date:
Observer:
Route & General Observations

The first day of snowmaching – in 18 months! – on the Chugach National Forest occurred yesterday. Route was the Seattle Ridge up-track to Main Bowl (1st Bowl).

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

There was a report of a remotely triggered avalanche in 2nd Bowl (Juniors Bowl). Limited visibility hampered a look at this reported slide.

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

Other than the report of the avalanche, we had no other signs of instability.

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

Cloudy skies turning obscured by the afternoon. Winds light from the East and temps near 20F.

Snow surface

At the parking lot elevation around 8" of light snow sits over a crust. Above 2,000' around 24" of storm snow sits over the Thanksgiving crust.

Snowpack

We dug a pit in Main Bowl around 2,700'. Total snow depth was 140cm (~4.5'). ECTX, no failure in any layers. There were facets below the storm snow but they were not reacting. This goes along with the many triggers out there today with only one avalanche that we know of.

Photos & Video
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