2023-08-03 18:00:00
The freshness will still be relevant with barely 16° on the heights of the Ardennes, 18° by the sea and 20 to 21° in Flanders, Hainaut and Brabants.
The northwest wind will blow a little less strongly with peaks between 25 and 45 km/h.
The following night the showers will disappear and the sky, initially still variable, will cover from the west with minimums of 15 to 10° depending on the altitude.
SATURDAY :
The following low will be very active and will move towards Wales and southern England.
The first rains are expected at the end of the morning in Flanders and western Hainaut and will also water the rest of the country copiously in the afternoon.
The south to southwest wind will be felt more and more with peaks of 40 to 60 km / h.
Temperatures will still show very cool values for the season with 15° at sea and on the eastern highlands to a low 20° in Campine.
At night the wind will veer to the northwest at the sea and will blow there with peaks of 75-85 km/h. Inland they should not exceed 55-65 km/h.
It will still rain heavily in all regions.
Accumulations expected across the country over the weekend will be between 25-45 L/M² which is 30-50% of what typically falls in a normal August!
Sunday :
The depression will fill in over Germany but will leave us in a flow of “cold” polar air with frequent “sleet” which may still be accompanied by thunderstorms and sleet.
The appearances of the sun will be rare in the morning but will become more present in the afternoon.
Temperatures will be exceptionally low for the beginning of August with 12 to 15° in the Ardennes, 15 to 18° at sea and in the plains.
The west to northwest wind will remain very unpleasant with peaks of 65 to 85 km/h in the morning decreasing somewhat in the afternoon with speeds of 55 to 75 km/h.
Monday and Tuesday :
A small anticyclone will circulate from west to east over France which will turn the current towards the southwest and bring us less cold ocean air with temperatures generally between 15° and 18° in the Ardennes and 18 to 22° elsewhere. .
The sky will be variable or even brighter on Monday but many clouds will return on Tuesday with, over a large northern half of the country, light rain associated with disturbances circulating over the southern British Isles and the North Sea.
Clearings will then return to the south of the Ardennes and near the French border.
Evolution for the rest of the week:
An anticyclonic regime is announced with a cell arriving first on the south of the North Sea and then moving towards central Europe.
This evolution will bring us drier and warmer air of continental origin with lots of sunshine and above all a rise in temperatures which will rise between 22 and 29º.
The likely trend:
For the following weekend until August 16:
After the passage of a cold front which can give a small stormy evolution, the pleasant weather of the season will persist with temperatures between 20 24° in the Ardennes and at the sea and 24 to 27° in the other regions but it will still be necessary to take into account a risk of showers or thunderstorms, especially in the east of the country.
For the period from August 17 to 27:
It looks like the disrupted flow is coming back.
Without evoking a prospect as gloomy as what we have just experienced at the beginning of August, the Atlantic depressions would return to the British Isles, bringing rainy periods and wind.
Published on Tuesday, July 4, 2023 at 06:59
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Code green: nothing special
> The type of weather forecast does not justify issuing a warning.
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Code orange: be prepared and follow the advice
> The orange code can be issued a maximum of 24 hours (and sometimes less depending on the uncertainty) before the meteorological phenomenon. The risk of meeting the criteria is more than 65%. Be prepared and follow the advice given by the competent authorities.
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