During the last two weeks wintry conditions have occurred in numerous countries, both in W Europe and E Europe. Very cold temperatures were observed in Scandinavia and Russia and snow has fallen in many areas between central Europe, the UK and the Mediterranean region.
However, these weather conditions are changing, with milder air coming from mid-Atlantic and N Africa. Indeed, already today higher temperatures are observed (Figure1) with values above 10 °C in many areas in S Europe (especially S Spain, Italy and E Mediterranean region) and above 0 °C mostly everywhere, except in the Alpine region, Scandinavia and N Russia.
The satellite imagery (Figure2) shows the main features of the weather conditions over the continent.
A high-pressure is setting on W and Central Europe, with bright conditions in Spain, S France and central/N Italy and fog/low clouds between Germany and Poland. Between France, the UK and the N Sea a (weak) low pressure system is causing showers across England and Benelux.
Moving eastward, warm air from N Africa is causing settled and mild conditions in the E Mediterranean and convection is occurring between S Italy and Greece. This is due to a (weak) low-pressure system positioned close to Sicily which is leading to a temperature contrast between the (relatively) cold air from central Europe and the mild air from N Africa. Thus, convective cells are forming on the sea, causing numerous thunderstorms in the area.
Finally, in E Europe and Scandinavia cold temperatures are still observed, with snowfall between Finland and Russia.
The weather conditions for this week will see an increase in the strenght of the high-pressure in central/southern Europe with settled conditions and relatively mild temperatures (though fog/low clouds are possible in the valleys limiting the increase in temperatures). In fact, from Tuesday possible peaks of 20 °C are expected in S Spain, Portugal, S Turkey and Cyprus. Temperatures between 10/15 °C are expected in S France, Italy and the Balkans and close to 10 °C in the UK and Central Europe. In addition, during the night temperatures will be close or slightly below 0 °C especially in the valleys (and in case of clear sky),causing a strong temperature gradient between day and night.
Only in E Europe and Scandinavia it will be still cold, though with values above the average.
On Thursday, colder air from N Atlantic should cause a slight decrease in temperatures (with frequent showers) in Central Europe, though with no snow or ‘freezing’ conditions. However, only from next week (so in 7 days) a more significant change in the weather conditions should be observed, though it is still too early to talk about its possible effects.