Bulletin d’avalanche

Waterton Lakes

Jan 7 – 10, 2016Parks Canada
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Archivé · expiré 11 years ago

Danger d’avalanche

Thu
Fri
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Incoming snow is unlikely to bond well to previous surfaces, watch for fast running sluffs if forecast snowfall accumulations materialize.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1–3
    A buried layer of Surface Hoar will be difficult to trigger, but has potential to propagate widely.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1
    Extra caution is advised if forecast snowfall amounts are exceeded.

Weather Forecast

A weak arctic front will push the upper ridge currently over our area to the south on Thursday, bringing colder temps and flurries to our area through Friday. Snowfall accumulations are expected to be less than 5 cm, temperatures will fluctuate between highs of -10 and lows of -20 degrees C, and winds will remain light from the SW swinging to NE.

Snowpack Summary

Traces of new snow have covered previous surfaces; a thin weak suncrust on solar aspects, old unreactive windslab in exposed areas, surface hoar up to 5mm in size in sheltered locations and surfaces facets in shaded areas below treeline. A surface hoar layer down 40-60cm in some treeline & alpine locations continues to gain strength.

Avalanche Summary

There has been no recent avalanche activity observed or reported. Isolated small natural avalanches were observed as a result of last weekends wind event.

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes