Bulletin d’avalanche

Banff Yoho Kootenay

Feb 9 – 10, 2014Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Sun
Mon
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

One more day of stable weather on Sunday.  After this, we move into a trend of slowly increasing avalanche danger. SH

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    2
    The basal depth hoar, crust layer is dormant for now.  Currently it is only possible to trigger this layer from extreme terrain in thin snowpack areas.

Weather Forecast

Saturday night should be the last bitter night of -30C. Sunday expect light winds and no snow. We are moving into a SW flow for the extended forecast period, bringing with it increased winds, warmer temperatures, and the possibility of 15-20cm by the middle of next week.

Snowpack Summary

5-10 cm of facetted snow sits on the spotty January 30th surface hoar. This is the layer to watch next week.  In the alpine this snow sits over a firm wind slab or facetted sun crust on S & W aspects. Minor wind effect on shady alpine features. Deeper snowpack areas have good mid pack strength over the weaker basal depth hoar/crust.

Avalanche Summary

No new avalanches have been observed or reported.

Confidence

Due to the number and quality of field observations on Saturday

Régions couvertes