Bulletin d’avalanche

Waterton Lakes

Feb 7 – 10, 2020Parks Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

New snow and strong winds on Friday night into Saturday will form new slabs. If venturing into avalanche terrain, carefully assess the bond of the new snow to the underlying crust.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2

    Incoming wind and snow will form new slabs at all elevations. Below 2000m, these will sit on a melt freeze crust which could serve as an excellent bed surface and increase reactivity. Take the time to evaluate the bond of new snow to this layer.

Confidence

Timing of incoming weather systems is uncertain on Saturday

Weather Forecast

Friday: Sun and cloud with localized flurries and strong westerly winds. Periods of snow overnight with accumulations of 15-25cm. Alpine high -6.

Saturday: Snow continuing in the morning, then clearing in the evening. Alpine high -5. Light to moderate northeast winds.

Sunday: Cloudy with Sunny periods and isolated flurries. Strong west wind.

Snowpack Summary

Strong west winds have redistributed 5cm of recent snow, and scoured most areas below 2000m down to a thick melt freeze crust. The alpine is highly wind affected, with many windward areas completely stripped of snow and lee areas containing hard wind slabs. The midpack is well settled, though weaker basal facets can be found in thin areas.

Avalanche Summary

No new avalanches observed.

Régions couvertes