Bulletin d’avalanche

Banff Yoho Kootenay

Apr 13 – 14, 2019Parks Canada
Voir sur la carte
Archivé · expiré 7 years ago

Danger d’avalanche

Mon
Tue
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
Ouvrir la carte complète

Points saillants

Expect windslab formation to continue. Be careful on lees of ridgecrests.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–1.5
    The first indications that recent snow has started to form a new slab are being reported. With winds expected to increase to moderate late Friday and then strong mid day Saturday, expect rapid development of new slabs.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1–2
    These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. It is wise to check in on this layer now found 40- 70cm deep before venturing into committing terrain.

Weather Forecast

Strong winds clouds, cool temperatures and light precipitation are forecast. In the short term, expect an increase in windslab formation.

Snowpack Summary

10 to 30cm has fallen since April 9. the new snow is being pushed into small windslabs on lee N and E aspects. Facets 50 to 70cm deep produce clean, hard shears but have not produced an avalanche for a long time. Shallow bottomless facets can be found on high north aspects.

Avalanche Summary

A small skier triggered windslab was noted on the lee side of a ridgecrest today.

Confidence

Régions couvertes