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Observations

Region: Summit
Location: Tenderfoot Ridge
Observer:
Date:

Route & General Observations

Standard Tenderfoot uptrack to first knob above treeline (~2,500′). Observation is from Saturday, December 17.

Avalanche Details

Avalanche details

Trigger NaturalAvalanche Type Soft SlabAspect West
Elevation 2500ftSlope Angle 36degCrown Depth 4in
Width 30ftLength 150ft  

Observer Comments

Numerous natural avalanches observed around Summit Lake - all on W-SW aspects and believed to have released sometime during the Dec. 15-16th storm. Bed surface was a 2mm crust that formed during the dry spell. This crust was observed on all aspects, at all elevations in advance of the storm.

Red Flags

Obvious signs of instability

Recent Avalanches?YesCollapsing (Whumphing)?NoCracking (Shooting cracks)?Yes

Observer Comments

Small, shallow, touchy wind slabs in obviously loaded areas.

Weather

Weather

Clearing skies throughout the day, calm winds. 30*F at the lodge in the morning, dropping to 20* by sunset.

Snow Characteristics

Snow surface

4-6" unconsolidated powder (in leeward areas, localized soft wind slabs >1' deep were observed)

Snowpack

Melt-freeze grains on the ground giving way to facets, capped with the aforementioned 2mm crust, now topped with 4-8" new powder. The shallow snowpack here got pretty hosed with the dry spell. Snow depth quite variable - 4-6" near ridges, over 3' in protected areas lower down.

Photos & Video

Photos



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