Bulletin d’avalanche

Kananaskis

Mar 28 – 29, 2021Avalanche Canada
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Archivé · expiré 6 years ago

Danger d’avalanche

Tue
Wed
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré

Points saillants

A significant storm could bring 15 to 25cm of fresh snow with strong NW winds. Snowfall amounts are uncertain. Keep an eye on localized conditions. Some parts of the region could tip into the HIGH avalanche danger rating.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1.5–2.5

    New snow and strong winds are forming widespread wind slabs in Alpine and Treeline terrain. These will be primed for skier triggering on Monday.

Confidence

Moderate -

Weather Forecast

Between 15 and 25cm of new snow is expected by Monday evening. Temperatures will dip to near -20 in the morning before warming to -12. Winds will shift to the NW and be in the strong range.

Avalanche Summary

Nothing new observed today, but visibility was very limited.

Snowpack Summary

Only a few cm's had fallen by the time forecasters left the field Sunday at midday, but it was snowing hard. The bond at this new interface so far appears good, but wind slab formation was observed in open areas at Treeline. These slabs were already up to 20cm thick and some cracking was observed. Monday could see 15 to 25cm more snow with strong NW winds. If this comes true, expect to find widespread wind slabs through the terrain.

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Closely monitor how the new snow is bonding to the crust.
  • Avoid lee and cross-loaded terrain.

Régions couvertes