Observation: Summit

Location: Tenderfoot Ridge

Date:
Observer:
Jenna Boisvert
Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Observer Comments

None

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

~25 F, partly sunny, light wind

Snow surface

New snow, ridge had thin new snow & windpack snow

Snowpack

Dug pit on top of Tenderfoot Ridge: Aspect = WSW, Elevation = ~4000 ft, Slope angle = 30 degrees, snow depth = 268 cm, weaker persistent layer was visually obvious between new storm snow and older denser snowpack. Weak layer = 4F, above = 1F, below = pencil
Did 3 compression tests:
1. CTH26, Q2, failed 40 cm down on weak layer
2. CTH25, Q2, failed 40 cm down on weak layer, realized afterward another layer just above had failed just prior and wasn't noticed at first, failed at 30 cm down, Q2 - probably in the CTH 20+ range
3. CTH28, Q2, failed 40 cm down on same weak layer

Location
Become a Member
If you think a public avalanche center is important please support our organization.
Donate Now
Become a Sponsor
Supporting the CNFAIC proudly shows that your business or organization values the safety of our snow sports community.
Become a Sponsor