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Avalanche: Other Regions

Location: Eagle and Raven glaciers

Date:
Observer:
Route & General Observations

General eklutna traverse north to south. Decent weather, mild temps, melt freeze cycle and no storm days. Noticed surface hoar forming on the whiteout glacier.

Avalanche Details
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Trigger NaturalAvalanche Type Hard Slab
Aspect West NorthwestElevation 5900ft
Slope Angle 45degCrown Depth6ft
Width 1000ftVertical Run 2000ft
Avalanche Details

Several point release slides on east, south and west aspects late morning through afternoon. Didn't notice any activity on north aspects until upper west fork and raven glacier area. First slide was on a north aspect and originated just below a cornice. Propageted about 200' and ran 100'. Second slide was on a west aspect and was 100' below ridge line, propagated est 800 yards and ran 1000 yards. Crown depth at deepest point looked to be 8'. Possibly a heat triggered wind slab as debris pile included refrigerator sized blocks and wet slide characteris at the bottom. Ridge was corniced. Both slides looked to be a few days old.

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

Typical shed cycle. No whoopfing or shooting cracks.

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

Wind was from the southeast this morning with building clouds around 830am.

Snow surface

5cm melt freeze crust on solar aspects.

Snowpack

Pit @ 5700 south aspect 20 degree slope 115cm deep. Right side up, ctv sp 80cm below surface. Ectx. 5cm melt freeze crust.

Photos & Video
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