The change is taking place in the north of France. The weather will be much more disrupted in the coming days than since the beginning of November. From this Sunday at the end of the day and in the evening, a first depression gradually sets in in the north of Hauts-de-France and in Seine-Maritime.
If these bad weather will affect a very large part of the country by Tuesday, it is in these sectors that they should be the most intense. They will go hand in hand with a wind which could take an almost stormy turn.
Météo France reports, for Monday, “an active rainy disturbance in a northern third of the country, more particularly Pas-de-Calais, where the accumulations will eventually become significant the following night”. “The sustained rains from Normandy to Hauts-de-France are accompanied by a westerly wind blowing in gusts between 50 km/h and 60 km/h,” adds the meteorological organization. “On Tuesday, the disturbance extended over a large northern half of the country. These phenomena should be monitored but are not dangerous at this stage.”
For the moment, Météo France is only counting on yellow vigilance (level 2 out of 3) in the Seine-Maritime department alone for Tuesday. This concerns precipitation. The weather channel, for its part, specifies that the equivalent of two to three weeks of rain could fall in 24 hours, locally a little more, in this same department as well as in the west of the Somme and the Pas- from Calais. Such quantities cannot rule out flooding.
In addition, the wind will extend to the entire northern half of the country from Monday evening, again around 50 km/h – 60 km/h. At the same time, it will strengthen in the wettest areas, reaching gusts of up to 80 km/h – 90 km/h near the coasts.
It would further gain power during the day on Tuesday. In the afternoon, all regions north of an axis going from Brittany to Alsace, including Île-de-France, would experience gusts which would reach at least 70 km/h, even 80 km/h. h. Near the coasts, from Finistère to the Nord department, the strongest gusts could be close to 100 km/h in Finistère and Pas-de-Calais, or even 110 km/h in the North, towards Dunkirk in particular.
Such levels would remain below those of a storm. There is no universal definition of the phenomenon. But it is accepted that it corresponds to gusts of 120-130 km/h on the coasts and 100 km/h inland. However, wind at 80 km/h inland, particularly in urban areas, is something to watch closely because it can constitute a danger, particularly due to falling objects.
