Strong thunderstorms with hail and strong winds are to be expected on a diagonal that runs from the Southwest to the borders of the east, through the Paris basin.
At midday, the weather channel * Place orange alert in 18 departments: Aveyron (12), Côte-d’Or (21) Doubs (25), Haute-Garonne (31), Jura (39), Loire (42), Upper Loire (43) Lozère (48), Haute-Marne (52), Meurthe-et-Moselle (54) Meuse (55), Moselle (57), Puy-de-Dôme (63), Haute-Saône (70 ), Saône-et-Loire (71), Tarn (81) Tarn-et-Garonne (82) and the Vosges (88). Furthermore, weather Chaine up 46 departments in significant risk.
In these departments, there is a risk of occasional strong thunderstorms with hail and high electrical activity can damage vegetation. Degradation is also accompanied by heavy rain. In places, the cumulative reach of 20 to 50 mm in one to two hours, the equivalent of two to three weeks of rain with a risk of heavy runoff or flooding near the lows. Do not rule out that minority, the risk of strong winds. They can go up to 90 km / h passing of the most intense storm cells.