Wind slab
- Above 1,800 m
Snowpack
Since Friday, a lot of snow has drifted at high altitudes, and down to intermediate altitudes in the regions exposed to the foehn wind in the north, meaning that the surface of the snowpack is now marked by the wind in many places. The snowdrift was widely deposited on loose snow on north-facing slopes, locally also on surface hoar. As a result, the fresh wind slabs are often prone to triggering. Snow will continue to drift during Saturday night into Sunday.
A lot of new snow is expected on and to the south of the Main Alpine Ridge; this snow will drift significantly.
Deep layers of the snowpack are compact in many places. However, around the crusts in the upper third of the old snowpack, layers with a sometimes faceted crystal structure are deposited, in which, especially in the inneralpine regions of Grisons above around 2400 m, avalanches were released in the week that is coming to an end.
Gliding avalanches are still possible, primarily on east-, south- and west-facing slopes below approximately 2400 m and more rarely on north-facing slopes. These may be large.
Weather forecast until Sunday, 10.03.2024
In the north, it will be cloudy to very cloudy with clear spells in the morning in the east and in the afternoon in the west. In the south, it will be very cloudy with lots of precipitation.
New snow
Temperature
At midday at 2000 m, between -2 °C in the west and south and +2 °C in the east.
Wind
Weather review for Saturday, 09.03.2024
It was very cloudy on the southern flank of the Alps, from the Aletsch to the Gotthard region and in the Engadine, partly sunny in Valais and the west, otherwise it was mostly sunny.
New snow
The snowfall level was between 1000 and 1200 m. The following amounts of fresh snow were recorded from Friday afternoon to Saturday afternoon:
Temperature
At midday at 2000 m, between +2 °C in the north and -3 °C in the south.
Wind
There was a southerly wind.
Trend until Tuesday, 12.03.2024Monday
The north will see clouds interspersed with clear spells and, especially in the afternoon, showers. Engadine is expected to experience the most sunshine. The snowfall level will be around 1200 m. There will be a light to moderate westerly wind. In the south, it will be cloudy with showers.
The danger of dry avalanches will fall, although it will remain critical for snow sports in the regions exposed to heavier precipitation in the south. Gliding avalanches will still be possible, some of which could be large.
Tuesday
In the north, it will often be cloudy with clear spells, especially in Valais and Grisons. There will be some precipitation in the form of showers. It will be quite sunny in the south.
The danger of dry avalanches will not change significantly in the north and will fall in the south. Gliding avalanches will still be possible, some of which could be large.
Bulletin data: WSL Institute for Snow and Avalanche Research SLF (CC BY 4.0)