Zervreila

On wind-protected shady slopes, the fresh snow from the weekend is lying on surface hoar in some places. In addition, the loose fresh snow was transported by strong winds from different directions and snowdrift accumulations have formed that are prone to triggering.

In the inneralpine regions of Valais and Grisons, these layers of fresh and drifted snow are also lying on a weak old snowpack with pronounced weak layers near the ground. Avalanches can sometimes propagate into these deep weak layers or be triggered directly in these layers in isolated cases. In the other regions, there are still weak layers in the near-ground old snowpack in some places on shady slopes. However, the weak layers are mostly so thickly covered here that they are hardly prone to triggering.

The night was partly cloudy. During the day, it was quite sunny in the south and often cloudy in the north.

Fresh snow

A few centimetres locally

Temperature

At midday at 2000 m, around -3 °C in the north and 0 °C in the south

Wind

• In the north, mostly moderate from southwest to northwest
• In the south, increasingly strong northerly wind in the afternoon

During the night into Tuesday, there will be some precipitation in the east. The snowfall level will be around 1000 m. It will be sunny in all regions during the day.

Fresh snow

From Monday afternoon to Tuesday morning above approximately 1500 m:

• eastern part of the northern flank of the Alps, northern Grisons: around 5 cm
• elsewhere less or dry

Temperature

At midday at 2000 m, between +2 °C in the west and -2 °C in the east

Wind

• Moderate to strong northerly wind at high altitudes
• During the night into Tuesday, strong northerly foehn wind in the Alpine valleys of the south
• Moderate Bise wind in the Jura

On Wednesday and Thursday, it will be mostly sunny after a clear night. During the night into Wednesday, there will be strong winds from the northeast to southeast at high altitudes. Otherwise, the wind will be mostly moderate from the northeast to east. Around midday on both days, the zero-degree level will be around 2200 m in the north and 1800 m in the south.

The danger of dry avalanches will decrease. With the solar radiation and the daytime warming, the danger of wet avalanches will increase somewhat over the course of the day.