südliches Prättigau

Snowpack

Below approximately 2800 m, the past week’s widespread snow is lying on bare ground or, on high north-facing slopes, partly on a thin old snowpack of faceted crystals. Because this thin layer of old snow has not yet filled in the roughness of the terrain, hardly any extensive avalanches are expected. Above approximately 2800 m, the snow is lying on old snowpack that is often cohesive, especially on north-facing slopes. This sometimes contains a weak layer of faceted crystals in which isolated avalanches may be triggered.

The mild temperatures and foehn wind have moistened the snowpack in the north up to intermediate altitudes and on sunny slopes up to high altitudes.

Fresh snow overnight to Tuesday will ultimately fall with little wind, making it difficult to recognise the snowdrift accumulations of the last few days.

Weather forecast until Tuesday, 26.11.2024

Overnight, precipitation will set in from the west, briefly intensely in the far west. The snowfall level will drop rapidly from 2300 m to around 1600 m. In the south, it will remain at around 1800 m. During the day it will become increasingly sunny in the west and south, while in the east it will remain cloudy but dry from the morning onwards.

Fresh snow

• extreme west of Lower Valais, Vaud and Fribourg Alps, western Jura: 15 to 30 cm;
• otherwise 5 to 15 cm; less in the central Grisons and Lower Engadine

Temperature

At midday at 2000 m, -1 °C in the north and +1 °C in the south.

Wind

• moderate to strong southwesterly wind at the beginning of the night, storm force southwesterly wind in the Jura
• later on, weak to moderate westerly wind

Weather review for Monday, 25.11.2024

In the north it was mostly sunny, in the south overcast but mainly dry.

Fresh snow

-

Temperature

At midday at 2000 m, between a very mild +10 °C on the northern flank of the Alps and -1 °C in the south

Wind

• sometimes strong southerly wind at high altitude
• sometimes strong foehn wind in the valleys of the north

OutlookWednesday

It will be quite sunny with a weak westerly to southwesterly wind. The temperature at midday at 2000 m will be +1 °C.

Avalanche danger will decrease.

Thursday

It will be very cloudy with precipitation. The snowfall level will be around 1800 m and will drop to around 1200 m in the north-east at the end of the day. Snow will mainly fall on the central and eastern parts of the northern flank of the Alps with around 20 to 30 cm. The westerly wind will be moderate, and strong in places at high altitudes. In the far south it will be sunny with northerly winds.

Avalanche danger will increase, especially on the central and eastern parts of the northern flank of the Alps. It will not change significantly in the south.