Bulletin d’avalanche

Hohgant

SLF
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Danger d’avalanche

All elevations
2= · Modéré
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Wind slab

    • Above 2,200 m

Snowpack Structure

Snowpack

Westerly and northerly winds have caused widespread snowdrift accumulations at high altitudes in recent days. Some of these are still prone to triggering. With the mild temperatures and rain, the snowpack has become saturated this week at intermediate altitudes and, on sunny slopes, up to high altitudes. An often brittle crust has formed below about 2200 m on the surface of the snowpack.

Before the precipitation in mid-November, there was a cohesive old snowpack, especially above approximately 2800 m. This contains some weak layers of faceted crystals, especially on northern slopes. Isolated avalanches can also be triggered in old, near-ground snowpack.

Weather Forecast

Weather forecast until Saturday, 30.11.2024

It will be sunny and mild in the mountains. In the far south, it will be only partly sunny.

Fresh snow

-

Temperature

At midday at 2000 m between +6 °C in the west and +3 °C in the east, and 0 °C in the south

Wind

  • overnight to Saturday in high Alpine regions still moderate to strong from the northeast
  • otherwise weak to moderate from the northeast to east

Weather Review

Weather review for Friday, 29.11.2024

Overnight to Friday, a little further snow fell in the north above 1000 to 1500 m before conditions cleared there too. It was sunny in the mountains during the day.

Fresh snow

Northern flank of the Alps, northern Grisons, above approximately 1600 m: a few centimetres

Temperature

At midday at 2000 m, between +3 °C in the west and -1 °C in the east.

Wind

  • overnight to Friday at high altitudes and on the main Alpine ridge partly moderate to strong, otherwise weak to moderate from the northwest
  • during the day weak to moderate from the northeast to east

Tendency

Outlook until Monday, 2.12.2024

On Sunday it will be mostly sunny in the mountains and mild with a zero-degree level at 2800 m. The wind will change to the northwest and will be mostly light. On Monday, clouds will gather from the west and light precipitation from the northwest will set in during the afternoon. The snowfall level will be 2000 m. It will be mostly sunny in the south and partly sunny in inneralpine regions.

The risk of dry avalanches will decrease. Gliding avalanches and moist snow slides during the day will be possible on steep sunny slopes.

Bulletin data: WSL Institute for Snow and Avalanche Research SLF (CC BY 4.0)

Régions couvertes