Bollettino valanghe

Banff Yoho Kootenay

Mar 4 – 5, 2012Parks Canada
Vedi sulla mappa
Archiviato · scaduto 15 years ago

Pericolo valanghe

Sun
Mon
Alta quota
4 · Forte
Limite del bosco
4 · Forte
Sotto il limite
3 · Marcato
Apri la mappa completa

In sintesi

Snowfalls and strong winds on the Divide are forecasted to continue for the 24 hours. Widespread natural activity is expected in those areas. This is a good time to pull back the reins until conditions improve.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2
    Moderate winds this week have also created thin, but stiffer wind slab conditions 25-35 cm deep on ridgetop lee terrain. These have been seen to step down to the Valentine layer and are now buried by further snowfalls.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely - Very Likely
    Dimensione
    2–3
    Snow depths over the Valentines surface hoar and sun crust on steep solar aspects range from 20cm E of the Divide, to 50+cm at Sunshine and Yoho. Continuing snowfalls and strog winds will increase natural activity on this layer.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Recent trips east of the Divide have found a shallow, weak snowpack. Tests done showed sudden collapse results on the basal facets. It is still possible to trigger the entire slope from shallow, thinly covered areas.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regioni coperte