Avalanche: Hatcher Pass

Location: Hatcher Pass, Southwest aspect MicroDot Peak

Date:
Observer:
Route & General Observations

Skinned up from Independence Mine Parking Lot into head of Rae-Wallace Bowl then up south ramp to Picnic Bench at 4200′ on MicroDot west ridge. This observation is after first snow storm of season. Wet grabby snow surface below 3500′. Dryer powder above. Primary danger is sloughs on higher slope angles.

Avalanche Details
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Trigger SkierAvalanche Type Dry Loose Snow
Aspect SouthwestElevation 4600ft
Slope Angle 40degCrown Depthunknown
Width 40ftVertical Run 200ft
Observer Comments

Skier descended from near MicroDot summit along rock ribs on SW face. He initiated a large slough and at one point was skiing below it followed by a dog. They cleared the slough by skiing at a cross angle. Slough was large enough to knock skier down and bury dog.

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

Large slough avalanche came down the Martin Mine gully on south side of Skyscraper at some point during the storm. Overall, point releases off dark rocks facing west

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

Clear and sunny, light winds. See attached snow profile image.

Snow surface

Wet grabby snow surface below 3500'. Dryer powder above.

Snowpack

See attached snow profile image.

Photos & Video
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