Bulletin d’avalanche

Jasper

Dec 13 – 14, 2023Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Fri
Sat
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

Human triggered avalanches remain possible. It is prudent to remain vigilant, evaluate snow and terrain carefully, and ski lightly as a myriad of early season hazards lurk just below the surface.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Just when the winds seem to dwindle, they return. Winds picking up again on Tuesday afternoon and are forecasted to be gusting strong on Wednesday.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2.5

    The snow pack is very weak at the bottom. Natural activity has not been observed yet. Keep this on your radar as triggering remains possible with the shallow nature of the overall snowpack.

Confidence

Moderate

Avalanche Summary

Tuesday's Patrol had excellent visibility and nothing new was observed.

Snowpack Summary

The snowpack is 40-60cm deep and is weak and facetted. A surface hoar layer down 15-20cm. A rain crust exists below 1800m. Previous strong wind has stripped exposed alpine.

Weather Summary

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

Wednesday will be a mix of sun, clouds, flurries, High -7 °C, and light SW winds. Expect a temperature inversion and possibly gusting 70km/hr winds Wednesday. Thursday could bring 9cm of snow, -4 °C, light winds, and 1600 metre freezing level. Friday-Saturday will return to clouds, sun, and -11 to -7 °C.

Terrain and Travel Advice

  • Avoid areas where the snow feels stiff and/or slabby.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Régions couvertes