The weather over the next few days will remain very cool or even cold. A situation which contrasts sharply after two weekends spent in rather spring-like or even summer-like weather.
The weather conditions are more autumnal for a few days. And for good reason, a polar descent has really interested us since Monday. Its arrival was notably characterized by the passage of a very active cold front.
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Heavy showers and sometimes violent gusts of wind were observed. This is also why several departments had been placed on orange alert by Météo-France services.
A polar air that will last
This situation much cooler or even cold will persist for several days still on France. Indeed, we find an anticyclone towards the Atlantic which will gradually rise to the Scandinavian countries. In this configuration, the low pressure areas will have no other choice but to circulate over Central Europe.
This positioning of the action centers will place thein France under a north to northeast sector flow until the beginning of next week at least. Thus, cold air will be conveyed, raising fears of morning frosts on calm, clear nights.
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Concerning the air mass, it promises to be a little colder than currently: the expected values at altitude 850hPa are around -6°C over the north of France, more generally -4 °C to -2°C. Un air quite cold for the period since normal at this altitude (around 1500m) is rather at 0°C.
A blocked situation
The anticyclone which will extend to Scandinavia should retreat slightly from these regions during next week. However, the vast anticyclone will still be present and should cover an area extending over a large part of the North Atlantic, up to the polar regions.
A new time, this configuration will be favorable to cold air descents over the hexagon. Moreover, a low pressure system could develop more frankly throughout central and western Europe. This will result in the presence of sometimes marked instability.
Indeed, although cold air is present, let us not forget thatcurrently the sun is warming the lower layers of the atmosphere. Result, strong air mass conflicts will be present between the air near the ground and that at altitude.
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A situation which will be favorable to the onset of stormy showers sometimes marked or even showers. A situation which must therefore be monitored between now and next week, in addition to a risk of frost during the nights and early in the morning.
When will spring weather return?
So far, the modeling showed no signs of improvement. That being said, for around 36 hours, certain digital models have timidly opted for the return of an anticyclone to France in early May. The trend is still uncertain, which requires great caution with these models.
