Bollettino valanghe

Banff Yoho Kootenay

Feb 26 – 27, 2015Parks Canada
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Archiviato · scaduto 12 years ago

Pericolo valanghe

Thu
Fri
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

Low danger means "small avalanches in isolated areas or extreme terrain". We expect these areas to be south and west facing slopes in the afternoon, as well as open alpine slopes with shallow snowpack treeline and above.

Problemi valanghivi

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural and human triggering is unlikely, but possible in steep open slopes with shallow snow, or south and west facing terrain during mid-day.

Weather Forecast

A NW flow over BC and Alberta is keeping the air cool with no significant precipitation expected in the next few days. Highs for Thursday of -9 with light winds and a  mix of sun and clouds. Clear skies and sun result in strong solar radiation this time of year, so pay attention to the snowpack if the sun is shining on it.

Snowpack Summary

A textbook Rockies snowpack exists, comprised of weak facets and depth hoar near the base overlain with a 40-60 cm stiff slab of snow. No significant snow over the past few days and a cooling trend has minimized any surface instabilities. Triggering is unlikely except in open, shallow snowpack areas and steep south facing slopes in the afternoon.

Avalanche Summary

No new avalanches reported today.

Confidence

Due to the number of field observations

Regioni coperte