Observation: Turnagain

Location: North Seattle Ridge

Route & General Observations

Toured up to N Seattle Ridge and Pyramid Peak. Isothermal snow below 900 feet, then wet dense snow. The Glopness Monster was out and about. Evidence of wind transport in any open areas regardless of elevation. Thick rime above 2800′.

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?No
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?Yes
Observer Comments

Got some very small windloaded W facing test cornices around 2000' to fail with moderate force (compressing knees). They were failing on old, hard wind packed snow.

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

Warm and humid. Some light to moderate easterly winds up high at times, but mostly calm. In and out of the clouds all day. Light snow began at 4 pm.

Snow surface

Isothermal up to 900 feet. Wind protected areas between 900 and 2500 ski pen 5 to 10 cm. Wind hammered/rime crust above 2500.


Dug down 1 m on a NNW wind loaded low angle roller around 2000, somewhat protected by small trees. Maritime feel in this area. Right side up, dense snow. 5 cm of 4F- new wind packed snow, everything below this 1 or 2F+. ECTX with 10 overdrive taps. Noticed a few old interfaces, but no distinct gaps in hardness. When filling back in the pit, we "shovel sheared" the back of column and got a Q2 shear 40 cm down, that broke about halfway across the block.

Photos & Video
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