This Saturday August 12 could be marked by local and sometimes stormy showers in the North-East of France. At the same time, the Rhône department will be placed under orange vigilance for the risk of a heat wave, starting at noon, according to Météo-France forecasts.
The hot weather has set in over the Rhone Valley. They will extend to Ain, the Loire and the Savoies on Saturday, with heat wave thresholds which will be reached on the Rhône, according to the vigilance bulletin issued by Météo-France. The shift in winds to the South-West will continue to drain Spanish hot air masses into the region.
During the night and in the early morning, locally stormy showers will circulate from Poitou to the Center, to Île-de-France, to Champagne-Ardennes and Lorraine. The sky will still be quite cloudy further west but clearings will develop in Brittany, Normandy, Hauts-de-France.
In the south, the sun will be largely present. In the afternoon, the showers and locally the storm will only temporarily affect Bourgogne-Franche-Comté and the Grand-Est. A few isolated showers may also develop in the mountains in the Alps and the eastern Pyrenees. Elsewhere the weather will be calm. The sun will most often be present, even if it will sometimes be quite veiled, as in the West.
In the morning, the minimum temperatures will generally be between 16 and 18 degrees. It will be 13 to 15 degrees in Brittany, but already 23 degrees in Lyon. In the afternoon, the heat will be present throughout the Rhône Valley with 35 to 37 degrees. It will most often be 32 to 36 degrees in the Mediterranean regions and going towards the plains of the Midi of Toulouse, 30 to 33 degrees going up to the north of Auvergne and south of Burgundy, 26 to 29 degrees in the North-East and in the West and 21 to 24 degrees from Brittany to Normandy and Nord-Pas-de-Calais.
