Avalanche: Hatcher Pass

Location: Marmot, Microdot, Nosehairs

Date:
Observer:
A. Barker Professional
Route & General Observations

Observed several 1-2 day old sizable wet-loose avalanches, some exposing ground.
Marmot west face, Pinnacle Bowl E-S-W, Ray Wallace W-SW, Nosehairs S

Avalanche Details
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Trigger NaturalRemote Trigger0
Avalanche Type Wet Loose SnowAspect West
Elevation 3800ftSlope Angle 38deg
Crown DepthunknownWidthunknown
Vertical Run 600ft  
Avalanche Details

Numerous wet-loose avys. Natural and human triggered. 100-600' length

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

moderate to large wet-loose, significant daytime heating

Weather & Snow Characteristics
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Weather

Increasingly warm daytime temps upwards of 46deg at 3500' in the shade- felt like 96deg!
No wind, no new precip.

Snow surface

Ski supportable crusts, boot penetration almost 12" deep. Surface varies from patchy wind slab, thin crust, thick crusts, sun softened snow, saturated mush. All E-S-W softened surfaces by noon.

Snowpack

see pit
CT15 RP 15cm down
CT11 RP 15cm down
ECTN 11 RP 15cm down

Photos & Video
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Natural, Marmot West Face Wet-Loose  

Sunnyside showing lots of rocks  

Morning melt-freeze crust still in tact- west 3300'  

Marmot west face- cornice triggered wet-loose, debris fills gully  

Marmot west face- natural wet loose D2  

Pit  

Location
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