Monday’s winter storm brought precipitation over a wide area and transported large quantities of fresh and old snow. In some cases the snow has been transported almost entirely from ridges and mountain crests. In locations situated some distance from ridgelines, large snow drift accumulations have formed in some regions. The fresh snow and snow drift accumulations are becoming more stable as a consequence of exposure to solar radiation, but only slowly on shady slopes. Distinct weak layers exist deeper in the snowpack in particular on west, north and east facing slopes. On the northern flank of the Alps these are mostly covered by thick layers of snow and therefore less prone to triggering. From southern Valais through northern Ticino to Grisons, in many places all the old snow near the ground is faceted. In these regions several large avalanches, and in isolated cases very large avalanches, have been triggered by people in recent days. Further releases of this kind remain possible.

In the morning cloud still lingered in the east, but it was sunny elsewhere.

-

At midday at 2000 m: between +4 °C in the southwest and -2 °C in the northeast

• Generally light to moderate in the north, but moderate to strong in the central and eastern parts of the main Alpine ridge, from northerly directions
• In the south, moderate to strong during the night, moderate during the day, from the north

After a clear night, it will be sunny and very mild during the day. The zero degree level will be approximately 3500 m.

-

At midday at 2000 m: about +7 °C

Light to moderate from westerly directions