The following are to be feared: violent gusts of wind, hail and heavy accumulations of rain.
If the Saône et Loire was classified as yellow for storms this Friday June 28, it will be on orange alert Saturday June 29, like the departments of the North East of France, including Nièvre, Yonne, and Côte -Golden. For the Saône et Loire, the transition to orange alert is at 4 p.m.
Qualification
Severely stormy summer situation which requires particular vigilance given the geographical extent and intensity of the forecast phenomena. In addition to intense electrical activity, these storms can cause violent gusts of wind, hail and heavy rainfall in a short time.
Expected development
On Saturday afternoon, isolated thunderstorms broke out towards Lorraine and Alsace.
A more generalized stormy deterioration then moves up from the south. It reaches the Bourgogne-Franche-Comté region around 6 p.m. then the Grand-Est region around 8 p.m. before continuing its progression towards the north.
These storms are particularly virulent. They are accompanied by violent gusts of wind (80 to 100km/h, locally around 110km/h possible), large hail and heavy accumulations of rain (40mm in less than an hour and up to 80mm over the ‘entire episode).
This marked storm zone will gradually move out towards the north-east of Lorraine and Alsace after midnight.
In the background, locally stormy rains will remain in the forecast until Sunday midday.
