Val d'Entremont-Val Ferret

Snowpack

With strong northwesterly winds, the new fallen snow was transported in the east, somewhat looser old snow in the other regions. The newer snowdrift accumulations are sometimes prone to triggering. These are largest on the northern flank of the Alps and in Grisons, which had the most transportable snow.

The old snowpack is quite favourable in the north, but in southern Valais and Grisons, it is faceted and is sometimes prone to triggering, especially in the Engadine and Val Müstair. In Ticino, the weak layers in the old snowpack are now so heavily covered that only isolated avalanches can be triggered in the old snowpack.

The old snowpack is water-saturated on southern slopes up to around 3000 m and on western and eastern slopes below approximately 2200 to 2400 m.

With the good outgoing longwave radiation in the west and south and the rather low temperatures, the wet snowpack stabilises during the night. With the daytime consequences of warming and solar radiation, the danger of wet and gliding avalanches increases somewhat.

Weather forecast to Tuesday

During the night into Tuesday, a few centimetres of snow will fall in the east above approximately 1000 m. In the west and south, the night will be mostly clear. During the day, the residual clouds in the east will increasingly disappear. Elsewhere conditions will be mostly sunny. In the afternoon, it will be increasingly cloudy on the Main Alpine Ridge in Valais and in Ticino.

Fresh snow

A few centimetres on the eastern part of the northern flank of the Alps and in northern Grisons

Temperature

At midday at 2000 m, between -4 °C in the north and -2 °C in the south.

Wind

• Moderate during the night from the northeast
• Temporarily light during the day, increasingly moderate from the southeast in the afternoon
• Moderate to strong Bise wind during the day along the Prealps

Weather review for Monday

Snow fell in the east. The snowfall level dropped from 1500 m to 1100 m. It was quite sunny in the west and south after a mostly clear night.

Fresh snow

From Sunday evening to Monday afternoon:

• Glarus Alps, northern Grisons, Lower Engadine: 15 to 30 cm.
• Remaining central and eastern parts of the northern flank of the Alps, central Grisons, Upper Engadine, Val Müstair: 5 to 15 cm.
• Elsewhere mostly dry.

Temperature

At midday at 2000 m, between -5 °C in the east, -1 °C in the west and +5 °C in the south.

Wind

From the northwest

• Often strong on the Northern Alpine Ridge, on the Main Alpine Ridge and in Grisons
• Otherwise mostly light to moderate.

Outlook for Wednesday and Thursday

On Wednesday, around 10 cm of snow will fall on the Main Alpine Ridge in Upper Valais. Otherwise, it will be partly sunny in the south and mostly sunny in the north. Thursday will be mostly sunny. There will be a moderate southeasterly wind on Wednesday and mostly light winds on Thursday. The zero-degree level will increase gradually, reaching 2400 m by midday on Thursday.

The danger of dry avalanches will decrease, but only slowly on shady slopes at high altitudes. The danger of wet and gliding avalanches will increase a little during the day.