Bollettino valanghe

Banff Yoho Kootenay

Feb 20 – 21, 2014Parks Canada
Vedi sulla mappa
Archiviato · scaduto 13 years ago

Pericolo valanghe

Thu
Fri
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato
Apri la mappa completa

In sintesi

The storm snow still needs time to settle and bond. Conservative route choices are still advised.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–3
    Recent SW winds have created touchy wind slabs on lee alpine and treeline terrain. These wind slabs are reactive to skier triggering.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    2–3
    The recent storm snow is settling but a poor bond still exists on the storm snow interface. Natural activity has decreased but it is still possible for skiers to trigger this layer.

Weather Forecast

Mainly cloudy with isolated flurries through to Friday. Alpine temperatures reaching a high of -9. Light southwest winds with moderate gusts.

Snowpack Summary

30 -70 cm of recent storm snow is settling and overrides the Feb 10th interface. A poor bond persists at this interface and many avalanches have been observed on this layer over the past week. Recent SW winds have created wind slabs in lee alpine terrain. These wind slabs are easily triggered and often step down to the Feb 10th interface.

Avalanche Summary

The natural avalanche cycle seems to have subsided, however many skier triggered wind slabs up to Class 1.5 were reported today. A size 3 natural off of Mt. Wapta was observed yesterday and explosive control work today on the Yoho Highway Paths resulted in several Class 2.5's and one Class 3 all running in the storm snow.

Confidence

Regioni coperte