Avalanche: Hatcher Pass

Location: Marmot Avalanche#2 (Near Catchers Mitt)

Route & General Observations

Three human triggered slab avalanches were reported on Marmot today. #1 Below the summit of Marmot (no info) #2 Catchers Mitt on Marmot (see video and pics)#3 Small convex rollover on lower Marmot between the south ridge and west face (see video)

12/23 Avalanche #1 below the summit of Marmot and Avalanche #2 on the Catchers Mitt seen here.


12/23 Catchers Mitt human triggered avalanche on Marmot. Skier rode the debris , staying on top nearly to the bottom of the debris in this photo.

Avalanche Details
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Trigger SkierRemote Trigger Unknown
Avalanche Type UnknownAspect West
Elevation 3700ftSlope Angleunknown
Crown Depth 10inWidthunknown
Vertical Rununknown  
Near Miss / Accident Details
Number Caught/Carried? 1Number Partially Buried?0
Number Fully Buried?0Number Injured?0
Number Fatalities?0  
Avalanche Details

Avalanche #1 : Marmot SW 4400' below the summit of Marmot (lookers left of mid-rib). All we know if this avalanche was human triggered and have no other info at this time.

Details for Avalanche #2 :Catchers Mitt on Marmot W aspect 3700'. Skier # 1 triggered shallow wind slab approximately 5-10" thick and was caught, carried approximately 200-300 ft, pulled his airbag and stayed on top. Skier #2 took a more conservative descent and triggered a smaller slab (labeled Avalanche #3) on a small convex rollover (see video).

Events of the day

Members of the party who triggered the avalanche in the Catchers mitt and the lower rollover on Marmot reported whumping and cracking on their ascent up the south ridge prior to triggering the avalanche.

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?No
Collapsing (Whumphing)?Yes
Cracking (Shooting cracks)?Yes
Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

ESE winds gusting 33-48mph for 17 hours at 4500'.

Photos & Video
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