südliches Prättigau

Snowpack

Snow is continuing to fall in the south, in some locations onto an unfavourable old snow surface of soft, faceted layers, especially on northern slopes. On south-facing slopes, the connection between fresh and old snow is more favourable.

In the north, the somewhat older snowdrift accumulations, which were mostly small, are becoming increasingly stable with a usually well consolidated old snowpack.

In southern Valais, Ticino and Grisons, the old snowpack is faceted and loose. Very occasionally, avalanches may still be triggered in deep layers of the snowpack in these regions.

Gliding avalanches are still possible, especially in the north.

Weather forecast to Wednesday

Cloud cover will mainly be heavy with intermittent precipitation. Brighter spells will be only in Valais and on the central part of the northern flank of the Alps and in the east. The snowfall level in the north will drop from around 1600 m to around 1200 m by midday. The snowfall level In the south will be at 1200 m.

Fresh snow

From Tuesday afternoon to Wednesday afternoon, the following amounts will fall above around 1600 m:

• southern flank of the Alps apart from the Simplon region and Val Müstair: 15 to 25 cm
• neighbouring regions to the north from Saas to Val Müstair, western Jura, Chablais: 5 to 10 cm
• elsewhere a few centimetres.

Temperature

At midday at 2000 m, around -2 °C.

Wind

Light to moderate from southwest to south

Weather review for Tuesday

In the south, conditions were overcast with intermittent light snowfall. The snowfall level was around 1400 m. There was some sunshine in the west and north.

Fresh snow

From Monday afternoon until Tuesday afternoon, the following amounts fell above approximately 1800 m:

• Main Alpine ridge from the Great St Bernard pass to the Bernina region and south from there: 5 cm
• elsewhere mostly dry

Temperature

At midday at 2000 m, between 0 °C in the north and -2 °C in the south.

Wind

• Light to moderate from southerly directions

Outlook

Thursday and Friday will be overcast in the south. In the north, there will be patchy to heavy cloud cover and snow will fall at times. The snowfall level will be between 1200 and 1500 m, dropping below 1000 m in the north on Friday. On both days, 30 to 50 cm of fresh snow is expected on the central and eastern parts of the southern flank of the Alps. Around 10 to 30 cm of snow is possible in other regions. However, the amounts of precipitation are still very uncertain. Winds will be mostly light to moderate, but occasionally strong from the southwest at higher altitudes.

The danger of dry avalanches will increase with the fresh snow, significantly so in the south. Isolated gliding avalanches will still be possible.