Bulletin d’avalanche

Jasper

Feb 5 – 6, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Strong southwesterly winds combined with new snow on Friday night will contribute to wind slab development.Good skiing can still be found in sheltered areas below tree line.

Problèmes avalancheux

  • Wind Slabs

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

    Recent snow is available for transport. Wind slabs are likely in lee slopes in lee slopes.

  • Persistent Slabs

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

    Persistent slabs sit over different weak layers depending on elevation & aspect. Above 1950m a buried facet layer down 20-40cm is the primary concern. Below 1950m, a faceting crust down 40-70 is presenting a more stubborn version of a similar problem

Weather Forecast

Saturday: Precipitation: Trace. Alpine temp: High -8 °C. Wind west: 20 km/h gusting to 55 km/h. Freezing level at VB.

Sunday: Precipitation: Trace. Alpine temp: Low -12 °C, High -6 °C. Wind west: 20-40 km/h. Freezing level: 1400 metres.

Monday: Flurries. Accumulation: 7 cm. Alpine temp: Low -13 °C, High -8 °C. Wind west: 25 km/h gusting to 80 km/h.

Snowpack Summary

Varied wind effect at tree line and above. Snowpack is facetted and complex. December facet layers down 20-40cm still reactive in tests; buried surface hoar found in isolated locations.

Avalanche Summary

No new avalanches reported from road patrol today.

Confidence

Due to the number of field observations

Régions couvertes