There is not much exciting weather related news to talk about in the Alps, because the sun will continue to shine in a large part of the Alps in the coming days. It will get warmer on the west and north side of the Alps in the coming days. Friday, some snow will follow for Piedmont, about 5 to 15 centimetres above 1000 metres. On Saturday, there might be some snow for the Western Alps as well, but for now this front seems to barely reach the Alps.
In this weather report:
This week there is a duel between the cold outbreak in South-East Europe and the mild southern flow over Western Europe. The Alps are exactly in between. In the past few days the Eastern Alps in particular were still full of cold upper air, but as the high pressure core continues to shift eastwards, winter is returning to South-Eastern Europe. The Alps, on the other hand, are increasingly getting into milder air masses. The past few days have again been sunny, but not yet particularly warm. In the already warm March-sun it really feels like spring, but as soon as you go in the shade you notice that the air temperature is still quite low. In Austria in particular, the north-easterly flow kept it nice and cold for the time of year.
The low temperatures in combination with the very dry air made sure that the conditions on the shady slopes were still pretty good for a long time. Despite the powerful sun, you could still hardly find any wet snow or firn on the southern slopes. This will change in the coming days, as temperatures in the western and northern Alps will rise due to föhn.
In the coming days, the temperature will rise more and more. From Friday onwards, an increasing pressure difference between the Northern and Southern Alps will create Südföhn conditions. Temperatures at 1500 metres will rise to around 5 degrees on the northern and western sides.
In the Southern Alps, it will remain significantly colder in the coming days. The eastern regions of the Southern Alps in particular will benefit from the wintry conditions in South-Eastern Europe. Snow will only fall on Friday in Piedmont. The eastern flow will bring 5 to 15 centimetres of snow with a snowline around 1000 metres.
A front from the west that first brings snow in the Pyrenees will also approach the Western Alps on Saturday, but I expect it to stay dry for the most part. In the western Pyrenees, it might deliver 20 to 40 centimetres of snow in the high mountains until Saturday, but the rather mild southern flow will initially bring a high snowline of 1700-1800 metres. From Sunday onwards, a low-pressure area off the coast of Portugal will probably bring even more precipitation.
As mentioned before, in South-Eastern Europe it is winter again. In Greece, the cold wave has brought a lot of snow. The snowline last night was below 500 metres and locally it even snowed at sea level! In the Pelion area, 60 centimetres of fresh snow fell and the most famous Greek ski resort Parnassos received around 30 centimetres of snow. Until the end of the week, there is more snow to come in this area. With upper air temperatures between -5 and -10 degrees at 1500 metres, the snowline will be very low (around 500 meters).