Bollettino valanghe

North Columbia

Apr 14 – 15, 2017Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 9 years ago

Pericolo valanghe

Sun
Mon
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

The key weather factors to keep your eye on this weekend will be the sunshine accompanied by rising freezing levels. Solar radiation is a common trigger for cornices which is currently our primary concern.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Lingering wind slabs may still be reactive to human triggers in isolated locations.

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    Minimize exposure to slopes with large cornices overhead when it is cool and cloudy and completely avoid them if it is warm and/or sunny.

Confidence

High -

Weather Forecast

SATURDAY: Mix of sun and cloud. Light westerly ridgetop winds. Freezing level around 1500m.SUNDAY: Sunny. Light southwesterly ridgetop winds. Freezing level rising to around 1800m.MONDAY: Mix of sun and cloud. Light southwesterly ridgetop winds. Freezing level hovering around 1700m.

Avalanche Summary

Two size 3.5 deep persistent slab avalanches were reported on Wednesday with crowns up to 4 metres deep. One was triggerd by a cornice and the other by solar radiation. The key weather factor to keep your eye on this weekend will be the sunshine accompanied by rising freezing levels. Solar radiation is a common trigger for cornices which is currently our primary concern.

Snowpack Summary

Recent snow and wind have formed wind slabs in the alpine on a variety of aspects caused by shifting wind directions. Cornices are large, looming, and the primary concern due to their potential to trigger large avalanches failing on facets at the bottom of the snowpack.

Regioni coperte