Our maps confirm heavy rainstorms tomorrow in France! Which regions are affected?

Increasingly unsettled weather is forecast in France in the coming hours. Tomorrow will be under close surveillance in the southwestern departments due to sometimes sustained stormy rains. likely to cause significant rainfall in a short period of time (locally equivalent to 3 weeks of rain)!

How will these heavy rainstorms develop? Will they spread to other regions during the afternoon? Find our latest forecasts in this article.

Rainfall accumulations to watch!

Heavy thunderstorms will move up the Basque Country and Béarn this evening and head towards Occitanie. These showers could already cause significant precipitation in a short time.

Tuesday morning, The southwest of France will wake up to locally sustained and stormy rain. These heavy rains will affect New Aquitaine and will spread to Occitanie and the Massif Central over the hours.

During the day, The map above indicates that heavy thunderstorms will tend to extend towards Occitanie, Limousin, Auvergne, Centre and Burgundy. The rains will be less sustained (at first) towards the Grand Est region.

Thunderstorms will also break out tomorrow between Alsace and the Provence-Alpes-Côte d’Azur region. They could prove strong in the second part of the day after another particularly hot day.

Showers will also affect the north-western and western regions of France. In reality, The sky is forecast to be cloudy across France tomorrow afternoon.

Significant rainfall accumulations

The map below indicates that rainfall accumulations could be significant. tomorrow due to heavy rain storms.

These heavy rainstorms could locally bring 40 to 50 liters of water per square meter. They could therefore cause runoff and flooding.

Wind gusts of up to 80 km/h are also possible under the strongest thunderstorms during this Tuesday. Electrical activity is also expected to be sustained during storms.

Falling temperatures

As temperatures remain summery this afternoon, They will fall tomorrow due to stormy rains.

In detail, 19°C is expected in Brest and Cherbourg, 21°C in Caen, Orléans, Aurillac and Biarritz, 22°C in Toulouse and Paris, 23°C in Bordeaux, La Rochelle and Abbeville, 24°C in Reims and Lille, 26°C in Clermont-Ferrand, 27°C in Metz, 28°C in Perpignan, Dijon and Nancy, 29°C in Strasbourg and Montpellier, 30°C in Nîmes and Mulhouse, 31°C in Marseille and 33°C in Ajaccio.

These violent storms can therefore be explained by this conflict of air masses over France, with significantly cooler air in the west and still very warm air rising from the Mediterranean, which still affects the regions located in the east of the country.