Bulletin d’avalanche

Jasper

Jan 16 – 17, 2014Parks Canada
Voir sur la carte
Archivé · expiré 13 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
4 · Fort
Ouvrir la carte complète

Points saillants

Highway 93N will be closed for avalanche control from Saskatchewan River Crossing to Poboktan Creek for Thursday Jan. 16th from 6am to 4pm. No climbing or skiing is permitted within the closure area.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Triggering this layer could potentially initiate deeper instabilities. 

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    Depending on elevation, this layer is either bridged by a hard mid-pack at higher elevations and likely to be triggered from a shallow area. At the lower elevations there is minimal support in the snowpack and is easier to trigger.

Weather Forecast

Temperatures forecasted to reach above seasonal expectations by midday Thursday. The high pressure and periodic glorious sunshine is forecasted to remain into the weekend and through next week.

Snowpack Summary

Warmer temperatures at TL and below are promoting settlement in the snowpack. Recent new snow has been redistributed by strong SW winds creating wind slab in open areas at all elevations.  This sits over a supportive mid-pack at higher elevations. There is a weaker overall snowpack BLT and at all elevations this is on top of weak basal facets.

Avalanche Summary

Natural cycle continues in the forecast area with numerous slab avalanches reported today on all aspects in the elevation range of 1900 to 2600m. Of particular note is a size 3 on Kitchener Shoulder, SE aspect at 2400ms running to ground.

Confidence

The weather pattern is stable

Régions couvertes