Bulletin d’avalanche

Waterton Lakes

Mar 29 – Apr 1, 2018Parks Canada
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Archivé · expiré 9 years ago

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Waterton will return to winter this weekend. Watch out for the new snow running far and fast on crusts.

Problèmes avalancheux

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1
    Because the snow surface is a smooth crust the new snow will run fast and far

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–1.5
    Watchout for storm slabs forming with new snow.

Weather Forecast

Weather models disagree on snowfall amounts starting Friday afternoon but Waterton could see up to 20cm of snow overnight into Saturday.  With the snow, temperatures will fall with day time highs between -5 and -10 and light winds from the NE. More snow is also forecast for Sunday night into Monday.

Snowpack Summary

The warm temperatures and sunny skies have been melting the snowpack at lower elevations. However the snowpack at higher elevation, including cornices, are still large and demand respect. Watch out for storm slabs with new snow on friday.

Avalanche Summary

A large natural avalanche was observed north of Waterton stepping down to the weak facets at the base of the snowpack. Small wet avalanches have been observed from steep solar aspects up to tree line.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Friday

Régions couvertes