If the forecasts of the Royal Meteorological Institute predict 37 or even 38ºC maximum for Tuesday, Luc Trullemans, he advances a little further. “Don’t go out in the sun, that’s the best advice. According to my calculations, we will reach 40ºC. For now, I’m at 39.5ºC for Brussels and Brabant: this means that Campine and Gaume, the warmest regions in general, we can add 1ºC. We will be close to 40, even 41ºC. this means that we will equal the temperatures collected on July 25, 2019 when we had 39.7ºC under shelter, in Uccle. That day, in Campine, we had 41ºC. »
But the temperature felt under the sun will be much hotter and varies according to the place and the situation: “I generally put 15 degrees more”, says Luc Trullemans.
It’s not just meteorologists who are monitoring the situation closely. The huge fires ravaging the Gironde (France) are worrying the management of forest resources in Wallonia: “Posters are placed on the edge of the massif. We are very attentive to high traffic areas where there is a risk of spread. We can talk about the Hautes-Fagnes, of course, but the whole of Wallonia will be under surveillance to avoid fire damage. »
And after ?
What after these heat for several days? There will probably be a thunderstorm in the air. Where and how strong? It is still too early to tell but David Dehenauw confirms the risk of stormy episode(s) for Wednesday July 20th.
“No heat wave”
For the center of the country, this Saturday, we will be at 24ºC and we will rise to 26ºC. At the start of the week, we will be at 33ºC on Monday and 37ºC for the center on Tuesday. Wednesday, we will be at 28ºC. “There will therefore be no heat wave”, comments the meteorologist from the Royal Meteorological Institute who only gives temperatures under shelter like all his colleagues from the IRM. “It’s an agreement between us. »
According to David Dehenauw, we will not break a record for the month of July. “From Thursday until the end of the month, we will have 25ºC as the maximum temperature. “.