Avalanche: Girdwood

Location: Road obs between Whittier and Ingram Creek.

Date:
Observer:
Route & General Observations

Afternoon road trip to view the avalanche carnage in the wake of this potent spring storm. Girdwood – Ingram corner – Portage – Whittier.

Avalanche Details
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Trigger NaturalAvalanche Type Unknown
Aspect UnknownElevationunknown
Slope AngleunknownCrown Depthunknown
WidthunknownVertical Rununknown
Avalanche Details

Widespread natural avalanche cycle since 3/27. Likely most active 4/4 - 4/6. All aspects and elevation bands. Portage and Placer zones seemed to have the most activity.

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

Roller balls observed this afternoon in Portage on due south slopes.

Weather & Snow Characteristics
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Weather

46 degrees in Girdwood at 4:30pm. 43 degrees in Portage. 38 degrees in Whittier. Winds were light from the east. Skies partly to mostly sunny. Definitely the most sun we've seen in a week and a half.

Snow surface

Many areas around Girdwood and Portage sported a 'sheen' indicative of a sun crust. Rain runnels very evident on terrain in Whittier leading up to the Whittier Glacier.

Snowpack

Most avalanches I observed appeared to be breaking mid-pack (storm snow only?). Many were very connected and showing serious propagation potential, indicative of failing on buried surface hoar or facets.

Photos & Video
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