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Observation: Turnagain

Location: Lipps south face

Date:
Observer:
Route & General Observations

Toured up to Lipps via the normal up track to check out the Glide crack avalanche on the south face. The avalanche is massive with cooler to bowling ball size blocks being the predominant debris along with a number of car to truck size blocks throughout the path. Crown face was estimated to be about 125 – 150′ across with depths from 6′ to 2′. The debris ran about 1000′ in elevation and started to snake down the drainage in the valley bottom. If you have any doubt about how powerful a glide crack avi can be check out the photos!

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 glide crack avalanche there were no other obvious 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

Mostly clear skies with very dense valley fog that moved around most of the day. Top of fog varied from about 1900' to the top of the ridge at times. Temps were in the mid to low 20s during most of the day. Winds were light coming from the E.

Snow surface

Road to ~1200' very hard rain/melt freeze crust w/ 2" loose snow on top
1200' to 2500' 2"-3" light snow over dense older snow
2500' up variable 2"-5" over mostly wind buffed and wind slab surface

Snowpack

No formal or informal test done. Upper layers of the pack are dense and consolidated. Ski penetration variable w/ a little penetration to a few inches.

Photos & Video
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