Avalanche: Hatcher Pass

Location: Marmot

Route & General Observations

Toured standard uptrack/shoulder of Marmot. Topped out via the S side and ran a couple of laps on the West face.

Avalanche Details
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Trigger NaturalRemote Trigger0
Avalanche Type UnknownAspect East Northeast
ElevationunknownSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Rununknown  
Avalanche Details

Large avalanche running the full length of the face of Hatch. I would estimate a crown depth of 2-3 feet. The bed surface was not the ground, so I'd assume the failure occurred with the new heavy wet snow.

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

Observed a persistent slab avalanche running the length of the E/NE face of Hatch Peak (i.e "Face of Hatch). Observed multiple point release avalanches on the S face of Skyscraper. Very significant wind lip development on Government Peak, Peak 4068, and Hatch Peak ridge/Bald Mountain ridge.

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

Cloudy, ~30 degree temps, light wind. Winds picked up around 2pm to maybe 15mph with sudden snow showers.

Snow surface

Snow surface varied from wind packed/high density moist snow in the lower elevations to windcrust/sastrugi in the mid to upper elevations. We also identified a significant amount of graupel in the mid to upper elevations!