Bulletin d’avalanche

Jasper

Mar 22 – 23, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Watch out for the poor overnight freeze Tuesday evening. Snow and strong winds are expected for Wednesday evening. If the storm comes in early or you are out late the hazard could be greater than what is reflected in the bulletin.

Problèmes avalancheux

  • Wind Slabs

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

    Increasing winds and snow will build new wind slabs in the alpine and possibly down into exposed tree line.

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3

    Be mindful of what is above you during periods of warm temperatures and poor overnight freezes.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–1.5

    Expect small wet loose avalanches in steep terrain with increasing temperatures.

Weather Forecast

Wednesday

Flurries.

Accumulation: 6 cm.

Alpine temperature: High -1 C.

Ridge wind southwest: 20 km/h gusting to 60 km/h.

Freezing level: 2000 metres.

Thursday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: Low -11 C, High -7 C.

Ridge wind west: 10-30 km/h.

Freezing level at valley bottom.

Snowpack Summary

There is a 1-5cm breakable temperature crust on all aspects below 1700m. Also a sun crust on solar aspects to at least 2100m. The midpack is mostly solid but there could be a Feb 13 interface down 20-50cm as a suncrust on solar aspects and a facet layer on polar aspects.

Avalanche Summary

No new recent avalanches have been observed around Jasper

Confidence

Timing of incoming weather systems is uncertain on Wednesday

Régions couvertes