Avalanche: Summit

Location: Road obs to Sterling Wye

Route & General Observations

Road obs to Sterling Wye to check out the outflow wind effect.

Avalanche Details
If this is an avalanche observation, click yes below and fill in the form as best as you can. If people were involved, please provide details.
Trigger NaturalRemote Trigger Unknown
Avalanche Type UnknownAspect East
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

Natural wind slabs in many of the east facing avalanche paths through Summit Lake.

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

Recent avalanches
Active wind transport

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

Temps in the teens to low 20s along highway.
Observed winds: Flagging off of Pyramid's northeast corner and towards God's country on the east side, very small flagging on Seattle Ridge above moto lot. Flagging in Lynx Creek. Flagging on Baird Peak in Portage.
Wx stations: Sunburst winds - westerly 5-10 mph gusts into the 20s, Summit Lake MP 45 - northwest winds in the teens gusting into the 20s, Sterling MP 37 - westerly and light.

Snow surface

Visible wind effect especially in Summit lake. Turnagain Pass was mostly spared.

Photos & Video
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