Avalanche forecast

Banff Yoho Kootenay

Feb 27 – 28, 2012Parks Canada
View on map
Archived · expired 15 years ago

Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
Open full map

Highlights

Tricky conditions exist. Sporadic natural activity to size 2.5 on the Valentines surface hoar layer today, and lots of smaller skier triggered slides, mainly at treeline. This condition will exist for the foreseeable future, so pull in the reigns. SH

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Touchy, thin surface wind slabs in lee terrain of ridgetops have been observed, and in some cases may trigger the deeper surface hoar weakness. Light winds and clearer skies Monday will not add to these problems.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    2–3
    35-55cm at treeline of settled snow sit atop the widespread Valentines surface hoar, and sun crusts on steep S. aspects. Easy to Mod shears were found in Yoho at treeline , with settlements and remote triggering of small rolls in gladed terrain.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number and quality of field observations on Sunday

Regions covered