Bulletin d’avalanche

Weisseck, Muhr Valley

LWD Salzburg
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Danger d’avalanche

Above 2,000 m
2 · Modéré
Below 2,000 m
1 · Faible
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Assess steep shady slopes with caution

Problèmes avalancheux

  • Persistent weak layers

    • Above 2,000 m

Snowpack Structure

Inside the old snowpack on very steep shady slopes there are weak layers of faceted crystals. On the one hand, the snow was able to metamorphose esp. where snow is shallow; on the other, below the near-surface melt-freeze crust there are also faceted crystals. Snowdrifts can form a slab on the surface above the faceted crystals. On shady slopes loose snow is still evident, on sunny slopes it is turning to firn.

Weather Forecast

On Tuesday, cloudless skies and radiant sunshine will generate outstanding visibility and perfect conditions in the mountains. Only at the valley floors in the morning hours will high-fogbanks limit visibility. Light to moderate W/N winds will be blowing. At 2000m: between -2 and +1 degree; at 3000m: between -6 and -2 degrees.

Tendency

Persistent weak layer problem will gradually recede as snowpack settles

Avalanche Activity

Assess steep shady slopes with caution

Avalanche danger above 2000m is moderate, below that altitude danger is low. Avalanches can in some places be triggered even by one sole skier. Avalanches can fracture down to more deeply embedded layers in the snowpack, particularly on steep north-facing slopes, and grow to medium size. In addition, some ridgeline locations can trigger near surface layers on wind-loaded slopes, releases mostly small. Small glide-snow avalanches are possible.

Bulletin data: Avalanche Warning Service Salzburg (CC BY 4.0)

Régions couvertes