Bollettino valanghe

Jasper

Jan 15 – 16, 2026Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 9 months ago

Pericolo valanghe

Sat
Sun
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

Cooler temperatures are expected for Thursday, but remain cautious of steep sun exposed slopes, and reactive wind slabs at tree line and above.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2

    Strong winds from the SW continue to build reactive wind slabs at tree line and above.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Temperatures are cooling for a Thursday, but be mindful steep slopes in direct sun could still produce consequential avalanches.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    2–3.5

    Be cautious where the snowpack transitions from thick areas to thin areas. Recent avalanches up to size 3.5 have been observed on this layer. This problem encompasses multiple weak layers of facets, crusts, and basal facets from November and December.

Confidence

Moderate

  • Uncertainty is due to how the snowpack will react to the forecast weather.

Avalanche Summary

Wind slabs and loose wet avalanches up to size 2 were produced from avalanche control along the Icefields Parkway on Tuesday.

A size 3.5 deep persistent slab triggered by a large cornice failure was observed on Saturday in the icefields area, and a size 2 deep persistent slab was observed from the ski hill in the adjacent backcountry on Tuesday.

Snowpack Summary

The snowpack is undergoing a significant transition. Strong winds have created reactive wind slabs at ridgetop, while at tree line and below, the snowpack is warming significantly, increasing the likelihood of loose wet avalanches in the region. The basal facet deep persistent problem remains a concern, particularly in thin snowpack areas, or under large triggers like cornice falls.

Weather Summary

Thursday

Sunny

Precipitation: Nil.

Alpine temperature: High -6 °C.

Mostly light ridge wind occasionally gusting to 55 km/h.

Freezing level at valley bottom.

Friday

Sunny

Precipitation: Nil.

Alpine temperature: Low -10 °C, High -4 °C.

Ridge wind light to 15 km/h.

Freezing level: 2700 metres.

Saturday

Sunny

Precipitation: Nil.

Alpine temperature: Low -4 °C, High -1 °C.

Light ridge wind.

Freezing level: 3100 metres.

Strong alpine temperature inversion.

Terrain and Travel Advice

  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be mindful that deep instabilities are still present and have produced recent large avalanches.

Regioni coperte