Bulletin d’avalanche

Jasper

Mar 9 – 10, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Tue
Wed
Alpin
4 · Fort
Limite forestière
4 · Fort
Sous la limite
3 · Marqué

Points saillants

The Icefields Parkway is closed due to elevated avalanche hazard until avalanche control and snow removal can be completed.

Check for updates on Alberta 511

It is best to avoid all avalanche terrain until this storm is over.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1.5–3

    This avalanche problem is associated with a weak facet and crust layer, buried at the end of January, down approximately 60cm in sheltered areas.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely - Certain
    Taille
    1–2.5

    Heavy precipitation and strong SW winds are forecasted for Saturday Night and Sunday.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    2–3.5

    Well developed facets and depth hoar at the bottom of the snow pack are still producing large avalanches in our region.

Avalanche Summary

Two large naturally occurring Deep Persistent Slabs were observed in the backcountry adjacent to the ski hill on March 7th.

Confidence

Moderate

Snowpack Summary

Up to 10cm of new snow and strong westerly winds during the day on Saturday. The top 20-40cm of the snowpack is complex, with multiple crusts and facet layers depending on location. Within the upper 60 cm of the snowpack there are two more persistent weak layers of a similar structure. The bottom of the snowpack is generally weak facets and depth hoar.

Weather Summary

Saturday Night

Periods of snow.

Accumulation: 18 cm.

Alpine temperature: Low -5 °C.

Ridge wind southwest: 20 km/h gusting to 65 km/h.

Sunday

Snow.

Accumulation: 20 cm.

Alpine temperature: High -4 °C.

Ridge wind southwest: 20 km/h gusting to 65 km/h.

Monday

Cloudy with sunny periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: Low -14 °C, High -9 °C.

Ridge wind west: 15-35 km/h.

Terrain and Travel Advice

  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

Régions couvertes