Observation: Turnagain

Location: Seattle Ridge

Route & General Observations

Afternoon ride up Seattle Ridge to take a look at any surface warming, surface conditions in general, and a look at the snowpack structure on East aspects.

Red Flags
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Observer Comments

No red flags noted.

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

Sunny with high clouds moving in around 4pm.
Winds calm
Temperatures in the 20'sF

Snow surface

A sun crust (up to 1") was found on east, south and southwest aspects at all elevations. Due west seemed to escape the crust in Main Bowl and possibly elsewhere.
Northerly aspects had cold dry snow, some nice soft snow and some harder wind effected snow. Many folks were enjoying those shaded slopes on both sides of the Pass.


We dug one pit on an east aspect at 2,400'. Snow depth 11 feet and pit depth around 4-5'.
We found one obvious weak layer about 16" down in the pit wall. It was a thin (1cm ish) layer of small facets and buried surface hoar. Most likely the 3/9 layer.
ECTP 29 sudden collapse. A lot of force to make it fail but collapsed and propagated quickly once it did.

This pit has around a 1 inch surface sun crust with a trace of loose snow on top.

Photos & Video
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