Bulletin d’avalanche

Gruyère

SLF
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Danger d’avalanche

All elevations
1 · Faible
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Périmé — ce bulletin a expiré 3 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Wet snow

    • Toutes altitudes

  • Gliding snow

    • Toutes altitudes

Snowpack Structure

Snowpack

The snowpack is increasingly stabilising. Some of the older snowdrift accumulations are still prone to triggering. In addition, the snow that has fallen since mid-January is lying on weak, faceted layers in places. In some cases, avalanches, possibly large ones, can occur in these old snowpack layers. On Friday and Saturday, some avalanches were triggered in these layers above 2600 m in northern Grisons and northern Lower Engadine. There are hardly any weak layers in the lower part of the snowpack that are prone to triggering.

Below approximately 2500 m, gliding avalanches are still expected at any time of day in all regions except on the southern flank of the Alps, with large gliding avalanches also expected in regions with a lot of snow. Furthermore, the danger of moist avalanches is rising owing to warming during the day and solar radiation on steep sunny slopes.

Weather Forecast

Weather forecast until Monday, 29.01.2024

Despite moving high cloud cover at times, Sunday night into Monday will be mostly clear and it will be sunny on Monday during the day.

New snow

-

Temperature

At midday at 2000 m, +8 °C in the north and +5 °C in the south.

Wind

There will be mostly weak winds.

Weather Review

Weather review for Sunday, 28.01.2024

After a clear night, it was sunny during the day.

New snow

-

Temperature

At midday at 2000 m, between +6 °C in the north and +2 °C in the south.

Wind

Winds were mostly weak.

Tendency

TrendTuesday and Wednesday

During Monday night into Tuesday, it will be partly cloudy and during the day it will be partly sunny with medium and high cloud cover. The east and south will be quite sunny. After a clear night, on Wednesday it will be sunny during the day. There will be a mostly light wind on both days. The zero-degree level will be at 3000 m on Tuesday, dropping to 2500 m on Wednesday.

The danger of dry avalanches will continue to decrease. As a result of solar radiation and the mild temperatures, wet avalanches are possible, especially on sunny slopes. Gliding avalanches are still to be expected in all aspects.

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

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