Wednesday 21 February 2024 – Snow on its way for the Alps, but how much?
High pressure is slipping away to the southeast of the Alps allowing Atlantic weather fronts to invade from the west. Most of the Alps can expect at least some snow over the next few days, but it now looks like the southern Alps will do best.
Milky skies this morning over the northern French Alps, heralding the arrival of a new storm cycle that will affect the Alps over the next few days. This is Les Saisies
Today it will remain mostly dry, bright and mild across the Alps. However, there are some areas of cloud drifting around, and some more general high cloud spreading into the west ahead of the approaching storm. This cloud will thicken overnight with a few showers here and there across the western Alps, and a rain/snow limit between 1700m and 2000m.
Thursday will be a messy weather day across the western half of the Alps – mostly cloudy with bits and pieces of rain/snow but also some drier interludes. It will remain very mild with the rain/snow limit around 2000m in the far western Alps, but a bit lower (1300-1600m) in the more internal valleys (e.g. Haut-Valais). The eastern half of the Alps will remain mostly dry until evening.
Late on Thursday, a much more powerful cold front will reach the western Alps before moving east overnight to reach all the eastern Alps early on Friday. It will also turn colder, with the rain/snow limit dropping to 400-800m by the end of Friday.
Between now and Saturday morning we can expect between 15cm and 30cm of new snow above 1500m across most of the Alps, but 40-50cm or even more across some central-southern and southeastern regions such as St Moritz, Livigno, Passo Tonale and Cortina.
Looking even further ahead, it seems likely that the weather in the Alps will remain cool and changeable early next week with further snow for some, the heaviest of which will again fall in the southern Alps.
Snow conditions will obviously improve in many areas over the next few days, particularly in the southern Alps. However, the lack of snow at low altitudes remains an issue and at this time of year it takes a lot of snow to rebuild any base. We will take a closer look at this in our detailed snow report out tomorrow.