Aigle-Leysin

Moderate avalanche danger will be encountered over a wide area. Weakly bonded old snow requires caution.

In some places avalanches can be released in the old snowpack and reach dangerously large size. The prevalence of the avalanche prone locations will increase with altitude. They are difficult to recognise. Isolated whumpfing sounds can indicate the danger. In addition the somewhat older wind slabs are capable of being triggered in some cases still. Backcountry touring and other off-piste activities call for defensive route selection.

Snowpack Below approximately 2200 m exceptionally little snow is lying for the time of year, and at low altitudes no snow at all is to be found. Above 2200 m as well, the snow depths are below average over a wide area. Snow depths correspond to the long-term average in some cases only in Valais. Below 2200 to 2400 m the mostly shallow snowpack has been influenced by warm temperatures and rain and is interspersed with melt-freeze crusts as well as faceted layers. At high altitudes the deeper layers of the snowpack are faceted and loosely bonded in many cases. This applies on west, north and east facing slopes above 2200 to 2400 m and on south facing slopes above approximately 2700 m. Below 2200 m isolated moist snow slides and gliding avalanches are possible in the west and north in particular. Observed weather review Monday, 02.01.2023 The southern flank of the Alps was cloudy. A little snow fell above approximately 1800 m. In the other regions it was a partly clear night; during the day it was only occasionally sunny with extensive high-altitude cloudbanks. Fresh snow In western Ticino above approximately 2200 m: up to 10 cm, otherwise mostly dry Temperature At midday at 2000 m: between +7 °C in the north and +1 °C in the south Wind At elevated altitudes and in the northern regions exposed to the foehn, moderate but strong at times from the south to southwest, otherwise mostly light Weather forecast through Tuesday, 03.01.2023 On Monday night, some snow will fall on the northern flank of the Alps and in Lower Valais. Otherwise it will be mostly dry. During the day it will be mostly cloudy. Some snow may fall in particular on the northern flank of the Alps and in the far south. The snowfall level will be approximately 1600 m in the north and 1800 m in the south. Fresh snow Between Monday evening and Tuesday afternoon above approximately 2200 m:

• Vaud Alps and extreme west of Lower Valais: 5 to 15 cm
• Elsewhere: smaller amounts or none

Temperature At midday at 2000 m: about 0 °C Wind Light, at elevated altitudes sometimes moderate, from the southwest to west Outlook through Thursday, 05.01.2023 Wednesday will be quite sunny in the mountains. On Thursday it will be cloudy in the north, and some snow may fall on the northern flank of the Alps and in northern Grisons. In the south it will be quite sunny with a northerly wind. The avalanche danger will decrease a little on Wednesday. It may increase a little in some regions of the northern flank of the Alps on Thursday.