Bulletin d’avalanche

Jasper

Feb 21 – 22, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Wind slabs may be forming in unusual spots due to northerly winds. Ice climbers, watch out for spin drifts from above.

Problèmes avalancheux

  • Wind Slabs

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

    These slabs are sitting on old hard surfaces (old wind slabs, temperature and sun crusts).

  • Loose Dry

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

    Most concern for ice climbers. Avoid narrow gullies and climbs exposed to steep rocky terrain.

Weather Forecast

Monday:A mix of sun and cloud.Precipitation: Nil.Alpine temperature: High -25 C.Ridge wind east: 15 km/h.Freezing level at valley bottom.

Tuesday:Sunny with cloudy periods.Precipitation: Nil.Alpine temperature: Low -30 C, High -20 C.Ridge wind northeast: 10 km/h.Freezing level at valley bottom.

Snowpack Summary

Up to 15 cm of new snow. New wind slabs in the alpine and exposed tree line from strong SW winds and incremental precipitation. Weak temperature crust up to 1900m and solar crust on solar aspects up to 2800m. December facets down 20-70cm, showing signs of rounding within bulletin region. Basal facets & depth hoar present throughout area.

Avalanche Summary

Icefields patrol and Maligne road patrol did not observe any new natural avalanche activity. Visibility was fair overall on Sunday.

Confidence

Due to the number of field observations

Régions couvertes