Bulletin d’avalanche

Jasper

Apr 8 – 9, 2019Parks Canada
Voir sur la carte
Archivé · expiré 7 years ago

Danger d’avalanche

Wed
Thu
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Ouvrir la carte complète

Points saillants

A winter snowpack still exists at upper elevations. Be diligent in your hazard management as you transition into the alpine.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Pockets of windslab in immediate lees will be buried by incoming new snow, making them more difficult to manage.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–2.5
    A weak layer of facets buried 30-50cm down is persisting in some areas. This is more prevalent at the Columbia Icefields & South.

Weather Forecast

Unsettled air from a series of low pressure systems hitting the south and then north coast will give several waves of snow flurries, with up to 15cm of accumulation by the end of the week. Tuesday: Cloudy with sunny periods. Flurries in the Icefields area (up to 5cm). Treeline temps: Low -3 C. High 1 C. Ridge wind light NW. Freezing level: 2300m.

Snowpack Summary

Recent small snowfalls are settling quickly, over a melt-freeze crust that extends in to the alpine on all apsects. Small windslabs can be found on lee slopes. A winter snowpack remains on alpine N aspects, with facets under an 20-50cm slab in isolated areas in the Icefields area and further South, and basal depth hoar in shallow snowpack areas.

Avalanche Summary

No new activity has been observed or reported.

Confidence

Forecast snowfall amounts are uncertain

Régions couvertes