2023-08-23 07:14:00
Since Friday, Belgium has been enjoying sunny and relatively warm weather. Nothing to do with the heat dome that is falling on a large part of France, and so much the better for that matter. But don’t get used to it, because the end of the week will be much less positive. “As I feared a few days ago, Thursday will be a day of changeover, confirms Pascal Mormal, meteorologist at the IRM. It will still be quite warm, with 26 to 28 degrees, even 30 degrees locally, but the weather will be noticeably wetter as the day progresses.”
What to fear is the return of thunderstorms. “We will have to be wary of this stormy risk, with potentially violent episodes. This is due to the contrast of air masses that we will witness. Cold continental air will come into contact with the warm air which is influencing our weather at the moment. It is especially the day of Friday which might be complicated. We are still waiting for 24 or 25 degrees, before the arrival of cooler air on Saturday.”
We will then go below the seasonal average for temperatures, with a maximum of around 21 degrees, in the center of the country. “The end of August will be similar, with the weather still a bit cool, and variable skies. It is not going to rain all the time, but it will be necessary to count on regular showers.
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The end of the holidays and the start of the school year are therefore not looking bright, but all is not lost for the month of September. “Long-term forecasts are still more uncertain, but we foresee the return of anticyclonic conditions and temperatures of 23 to 24 degrees for the first week of September.”
Enough to conclude a very contrasting summer, but far from being completely rotten. “We should end the summer with an average of 19 degrees, and at worst the 7th place of the hottest summers since 1833, completes the meteorologist. The rotten summer feeling comes from those two mediocre weeks in July-August, but the month of June was exceptional, we must not forget that. Even in terms of sunshine, we will be above average. For the rain, on the other hand, we will be slightly above average, but without excess either.
In France, on the other hand, the heat dome that affects much of the country continues to cause extreme heat. “We escape the worst thanks to this mass of maritime air which makes it possible to temper the excesses, indicates Pascal Mormal. In France, what is happening is quite incredible. Several absolute records have already fallen in some stations. Thursday should be the high point of this episode, with 42, even 43 degrees or more over the southwest of the country. Beyond the intensity, it is also the duration of the episode that is worrying.
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