Bulletin d’avalanche

Jasper

Jan 2 – 3, 2017Parks Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

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

Prepare for cold temperatures all this week.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Cold temperatures and hard slab conditions make triggering less likely.  Triggering from shallow spots a possibility.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    This layer will weaken with cold temperatures.

Weather Forecast

Temperatures dropping below -30s for lows.  A few flurries possible on Monday.  Dry and cold through the week.

Snowpack Summary

Southerly slopes in the alpine have been stripped by previous Strong SW winds with hard slab on lee features. At treeline, there is a faceted snowpack that is still just supportive but weakening in shallow areas. Cross-loaded slopes on westerly aspects starting to release at Treeline and above.

Avalanche Summary

2 slab avalanches observed in the Nigel Basin across from Parkers Ridge in cross-loaded gullies above treeline on SW aspect.  Size 2 and 2.5.

Confidence

The weather pattern is stable on Monday

Régions couvertes