Avalanche: Turnagain

Location: Guard Rail- Following Magnum Common Skintrack

Route & General Observations

APU Snow Science class went out at 0930 to look at recent storm activity.

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

Witnessed active slide on E aspect across the valley from Magnum.
Heard several avalanches but could not see where they were located.

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

There was 48 cm of new snow accumulation as well as recent high to moderate winds. It was also very moist snow which shows rapid thawing in the past few days.

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

OVC and RM in the morning; BKN and S-1 in the afternoon. Temperatures hovered around freezing. Light winds with strong gusts coming from the NE

Snow surface

Very moist new snow surface. Surface temps reached -1C


At 1200' at the base of Magnum on W aspect we built 4 pits and had two with reactive results.
Total snowpack height was 225cm.
ECT14 @ 70cm down
CT 13 SC @80cm down
CT23 SP @ 75cm down
The layer of concern was BSH from 3.16 @ 70cm down.

Photos & Video
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