Bollettino valanghe

Banff Yoho Kootenay

Mar 5 – 6, 2012Parks Canada
Vedi sulla mappa
Archiviato · scaduto 15 years ago

Pericolo valanghe

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

In sintesi

A natural avalanche cycle to size 3 is occurring, and the spike of this system will happen early tomorrow. We may dip into extreme during this time. 48hr. snowfall amounts so far 30cm to 70cm, and rain in Field and Kootenay, 30 cm more possible.SH

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely - Very Likely
    Dimensione
    1–3
    Fresh and buried wind slabs up to 60cm thick are primed for triggering. They have been seen to step down onto the Valentines surface hoar layer to cause larger avalanches.

  • 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 40cm E of the Divide, to 90+cm at Sunshine and Yoho. Continuing warm, dense snowfall and strong 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

on Monday

Regioni coperte