Observation: Summit

Location: Tenderfoot

Route & General Observations

Toured out of Tenderfoot parking lot, up Northwest shoulder of Tenderfoot to 2900ft.

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)?No
Cracking (Shooting cracks)?Yes
Observer Comments

Shooting cracks in the alpine (2800ft) down to 5cm in recently wind drifted snow on W facing aspect.

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

Temps stayed in the teens throughout the day at all elevations. Light snow throughout the day. Southerly winds light gusting to moderate, diminished in the afternoon. Skies stayed overcast throughout the day.

Snow surface

About 3 inches of new snow at mid elevations. Ski penetration was 15cm below treeline and at tree line, decreasing in areas of wind effect. Wind deposit and noticeable ripples on the surface of NW facing aspects. Slight wind crust in the alpine.


At 2900', three pits on Northerly aspects had no propagating results on any of the weak layers we have been tracking.
At 2458' on a NW aspect, the Freezing fog crust (down 40cm) failed on top of .5-1mm facets, and propagated in Extended Column Test.
PST 45/100 end. HS was 210cm.
At 2375’ on a WNW aspect, propagation occurred on Veterans Day Facets overlying Halloween crust (ECTP 27), 100 cm from surface. HS was 180cm.

Photos & Video
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