Bulletin d’avalanche

Bregenzerwald Mountains

LWD Vorarlberg
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Danger d’avalanche

Above 1,500 m
2 · Modéré
Below 1,500 m
1 · Faible
Périmé — ce bulletin a expiré 3 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Persistent wet-snow avalanches, heed drifts at high altitudes

Problèmes avalancheux

  • Wet snow

    • Toutes altitudes
  • Wind slab

    • Toutes altitudes

Avalanche Activity

Persistent wet-snow avalanches, heed drifts at high altitudes

In steep rocky terrain and where there is rain impact, increasingly frequent wet-snow avalanches can be expected. On steep grass-covered slopes and over rock plates in all aspects, small glide-snow avalanches continue to be possible. Caution below glide cracks. Small snowdrift accumulations at high altitudes are prone to triggering, the occur behind discontinuities and in wind-loaded gullies and bowls. Small isolated medium-sized avalanches can be triggered by one person. Mind the risks of being swept along and taking a fall. Due to solar radiation loose-snow avalanches are possible esp. on rocky and sunny steep slopes.

Snowpack Structure

The minor fresh snow was deposited atop a weakened old snowpack surface which is wet up to high altitudes. Up to 1500 m there is little snow on the ground. Snowdrifts from recent days have been blanketed by freshly generated snowdrifts, bonding is poor at high altitudes, also graupel has been covered over. Near-surface layers are often prone to triggering.

Weather Forecast

Nocturnal hours: Heavily overcast skies, a cold front is bringing fresh snow down to 1000 m. Clouds will disperse in early morning. Saturday daytime: Marked improvemenet in weather conditions, increasing sunshine, but still windy in the morning. Cloudless skies in the afternoon. At 2000 m: -7 to -2 degrees. Brisk to strong NW winds in the morning, moderate in the afternoon.

Tendency

Sunday will be very sunny. Avalanche danger levels will decrease at high altitudes. Persistent wet-snow/glide-snow avalanches due to the higher temperatures.

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

Régions couvertes