2023-08-17 18:33:23
We are currently dependent on a broad anticyclone moving east over the Norwegian Sea towards northern Scandinavia, beginning to direct an east to southeast flow bringing warm continental air from the east of France and Provence.
This will give us this Friday morning some fog, especially in Wallonia, but also very quickly a very generous sun which will raise the temperatures between 24 and 26° on the coast and between 26 and 29° in the interior of the country or even locally up to 30 to 31 ° in the agglomerations and in Campine.
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The east to southeast wind will be slightly sensitive blowing with peaks of 20 to 40 km / h. At night, the sky will cloud more and more from the coast and the minimum temperatures will remain exceptionally high, displaying at their lowest values between 20 and 25° (!)
SATURDAY
A cold front associated with a depression over the Atlantic will approach the west of the country in the morning giving it a few showers or thunderstorms.
It is expected to lose activity as it moves inland giving some showers and possibly a small thunderstorm locally in the Ardennes.
Fine clearings will follow it first along the coast, then in the center of the country. It will be a little cooler than the day before with highs returning between 23° by the sea and in the upper Ardennes, and between 26 and 29° elsewhere.
The wind that will have veered southwest to west will be more sensitive with peaks of 20/40 km/h in the interior and 45/55 km/h at sea.
The following night will be calm and foggy with banks of fog in the Ardennes and slightly more bearable lows between 13 and 19°.
Sunday and Monday
A new anticyclone will form over the English Channel and England which will guarantee us pleasant and dry weather with quite a lot of sunshine and developments of cumulus clouds in the interior of the country.
The daytime temperatures will show in the afternoon about 23 at the coast and 24 to 28° in the rest of the regions depending on the altitude.
At night it will still be a little cooler with minimums between 12 and 17° and even a few degrees cooler in the valleys of the Ardennes with 6 to 11°.
Mardi
The center of the high will slide east towards Germany and Poland and begin to send us warmer, dry continental air with plenty of sunshine and temperatures reaching afternoon 24 to 28 ° in the Ardennes and the coast, and 28 to 31° in the plain.
The following night will again experience high minimums with 13 to 17° in the Ardennes valleys and 17 to 21° elsewhere.
Wednesday
The arrival of a low pressure zone on the British Isles will contribute to a change in the current which will move more to the south-east and to the south and will bring us even warmer air from the south of France with temperatures between in general between 27° near the sea and in the Hautes Fagnes up to about 32° in the plain.
THURSDAY
It will still be hot but the weather will turn stormy at the end of the day and the following night. Maximum temperatures should still show maximum values between 24 and 29°
Evolution for the weekend and the following weekend
After a stormy episode which is likely to be active with quite a lot of rain, the weather will cool down in an unstable and disturbed atmosphere with temperatures returning to between 17 and 23° depending on the region.
Trend until the end of August
We would stay in an air with seasonal temperatures, that is to say between 16 and 23° in the afternoon.
The weather will be rather variable or cloudy and the risk of rain or showers will also remain present throughout the period.
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