Avalanche: Hatcher Pass

Location: Peak 4068, NE and NW aspects; Hatch Peak, NE aspect; and Marmot Peak, NW aspect

Date:

May 19, 2018 1:00

Observer:

Ralph Baldwin

Route & General Observations

Toured up into Rae-Wallace Bowl and then to Picnic Bench (4200′) on west ridge of MicroDot.

Avalanche Details

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Trigger	Natural	Remote Trigger	0
Avalanche Type	Wet Slab	Aspect	Unknown
Elevation	3600ft	Slope Angle	35deg
Crown Depth	unknown	Width	unknown
Vertical Run	unknown

Avalanche Details

Spring shed cycle. Large sympathetic releases on NE and NW faces of Peak 4068 that Ranger Pagni reported. Released between 6:00 and 8:00 a.m. yesterday, 5/18. Ran to ground and full length. Wet slab releases on NE faces of Hatch Peak and a multitude of point releases covering the NW face of Marmot (Rae-Wallace chutes).

Red Flags

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Obvious signs of instability

Recent Avalanches?	Yes
Collapsing (Whumphing)?	No
Cracking (Shooting cracks)?	No

Weather & Snow Characteristics

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Weather

Increasing solar radiation and moderate wind events over last 24-48 hours.

Snow surface

Wet heavy snow over top 6", firm base underneath.

Photos & Video

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Large sympathetic releases of wet slabs on NE and NW aspects of Peak 4068

Wet slab releases on NE face of Hatch Peak

Point releases covering the NW face of Marmot (Rae-Wallace chutes).

Location

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