Bulletin d’avalanche

Jasper

Jan 1 – 2, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

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

Points saillants

Jasper Visitor Safety wishes everyone a Happy New Year as we patiently wait for more snow in the forecast.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–2.5

    You must keep this basal layer on your radar as triggering is possible in some features, like approaching or moving between pitches on ice climbs. Be cautious in steep terrain if you find yourself standing on the surface and not wallowing in facets, that's the problem slab.

Confidence

Moderate

Avalanche Summary

No new avalanche activity has been observed or reported in the last few days.

Snowpack Summary

Extensive wind effect tree line and above throughout the region, with windward aspects scoured and hard wind pressed snow on lee features. Sheltered areas have a weak faceted snowpack with the early December surface hoar down 20-30cm, and depth hoar making up the bottom 10-30cm. Two thin melt freeze crusts from December (5th and 22nd) warming events exist below 1700m on solar aspects. Average snow depth at tree line is 40-70cm.

Weather Summary

Monday: A mix of sun and cloud. Precipitation: Nil. Alpine temperature: High -7 °C. Ridge wind light to 25 km/h. Freezing level at valley bottom.

The Mountain Weather Forecast is available at Avalanche Canada https://avalanche.ca/weather/forecast

Terrain and Travel Advice

  • Use caution when approaching steep and rocky terrian.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Régions couvertes