Of
Saturday May 3 at 1:00 p.m. au
Saturday May 3 at 10:00:00 p.m.
Situation
The summer time ends this weekend under the effect of a conflict of air masses between current heat and the arrival of a northeast flow from northern sea.
Trend to come
-This Saturday, the thunderstorms broke north of the Loire from this afternoon then in Midi-Pyrénées in the evening. The stormy activity is dispersed, but punctually supported north of the Loire, and will quickly stop in the evening with the arrival of fresh air.
Southwest thunderstorms in the evening will be more violent with a risk of hail and gusts of wind.
– Tomorrow Sunday, the thunderstorms will mostly burst in the south of the Loire and will mainly shift to the east and the south, affecting Occitania, the Rhône valley, the Alps and the North East. The accumulation of precipitation could cause sudden floods, especially near rivers. Wind gusts, sometimes exceeding 90 km/h and hail will remain major threats.
This alert will evolve accordingly. Pay attention to our updates.
Observation
This Saturday at 3 p.m., Thunderstorms are now completed on the Norman coasts with the establishment of fresh time with 11 ° C in Dieppe. On the other hand, from the interior of Normandy to the Ardennes, thunderstorms multiply in a heavy and heavy atmosphere with 27 ° C in the capital. A powerful line of thunderstorms stretches from Dreux to Gisors and crosses the north of the Yvelines by giving hail. These thunderstorms are headed for Paris.
Evolution
This Saturday:
Risk period: From Saturday 1 p.m. to Saturday 10 p.m.
Regions concerned: North of the Loire (between the center of Normandy and the Grand Est via the Parisian basin) and Midi-Pyrénées / Auvergne
Settings: Halt (especially in Champagne-Ardennes and Midi-Pyrénées). Briefs and strong sometimes stationary showers (loc 30 to 40 mm).
Tomorrow Sunday:
Regions concerned: From the Pyrenees to Rhône-Alpes via Occitanie.
Risk period: 10 h / 23 h
Settings: Strong accumulation of rain (Ariège and Rhône-Alpes, up to 60 mm). Wind gusts.
Before and during the storm episode
– Avoid non -essential trips during risky periods.
– Return or secure exterior objects (garden furniture, flower pots, parasols …) to prevent them from being carried away by the wind.
– Shelter your vehicle, if possible, to limit the damage in case of hail.
– Log away from trees, metallic structures and watercourses during the thunderstorm.
In case of heavy sudden rains
– Never engage in a flooded road, even partially.
– On the road, reduce your speed, increase the safety distances, and beware of gusts under thunderstorm.
