Bollettino valanghe

Jasper

Mar 24 – 25, 2026Avalanche Canada
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Archiviato · scaduto 6 months ago

Pericolo valanghe

Thu
Fri
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato

In sintesi

Check 511 for Icefields Parkway updates. The snowpack needs time to settle, and lingering reactivity plus 15–20 cm by Wednesday morning will keep the hazard elevated.

Careful route choices, solid group management, and healthy skepticism in steep terrain will support safe travel this week.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1.5–2.5

    A new wind slab is forming as moderate winds redistribute the previous storm snow, with as much as 40 cm available for transport and deposition. This new load is accumulating over an untested crust, creating a highly unstable structure.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    2–4

    The Icefields have received 100+ cm of recent snow, which has produced a large‑scale natural avalanche cycle. Any slope that has not released naturally should be regarded as highly susceptible to triggering; the consequences of which would be severe.

Confidence

Moderate

  • We are uncertain about how quickly the snowpack will recover and gain strength.

Avalanche Summary

The road was opened on March 24th from Jasper to Parkers Ridge. Further avalanche control is scheduled on the Parkway for Wednesday.

A widespread natural avalanche cycle produced numerous, massive avalanches following the storm that occurred from March 15 to 21.

Snowpack Summary

The Icefield's alpine has received 50-100 cm of new snow, with a further 10-15cm expected by Wednesday morning. Maligne has received 20-30 cm. A temperature and rain crust has formed below treeline and exists up to 2100 m. A persistent weak layer of old surface hoar and facets is buried 50-150 cm. The midpack is generally well consolidated with facets near the ground. Average snow depths for the Icefields are 150-220 cm, and Maligne is 60-140 cm. 

Weather Summary

Overnight: Flurries. 8 cm. Temperature: Low -8 °C. Wind southwest: 30 km/h gusting to 80 km/h.

Wednesday: Flurries. 7 cm. Temperature: High -8 °C. Wind west: 20 km/h gusting to 75 km/h.

Thursday: Flurries. 6 cm. Temperature: Low -14 °C, High -11 °C. Wind west: 15 km/h gusting to 40 km/h.

Friday: Cloudy with sunny periods and isolated flurries. Trace. Temperature: Low -14 °C, High -7 °C. Light wind, gusting to 45 km/h.

Terrain and Travel Advice

  • Uncertainty is best managed through conservative terrain choices.
  • If triggered, wind slabs may step down to deeper layers, causing larger avalanches.

Regioni coperte