the essential The weather forecasts announce a return of cold weather in France in the coming days. Showers, sleet and even snow are expected next week. Towards the end of a scorching summer? While the temperatures are cooling in this second half of September, it is to be expected that the freshness will settle in for a long time, according to the latest weather forecasts. According to Météo France, the temperatures for the week of September 26 to October 2 will still be “lower than seasonal norms”. Same observation for La Chaîne Météo, which announces “wind, showers, rain, sleet and the arrival of snow in the mountains” from next week. If the current wave of freshness is quite typical of the period as we explained in this article, the forecasters note that it is necessary to go back “to January 10, 2022 to find 18 consecutive days where the national thermal indicator (the average temperature maximum and minimum recorded in 24 hours in 30 meteorological stations, note) was lower than normal. For next week, Météo France is therefore forecasting “disturbed weather”, marked by “rainy periods” or “showers”. Snow is even expected in the mountains, while the first white frosts are already visible in some places. Mediterranean episode On the other hand, the hypothesis of a Mediterranean episode is becoming clearer for the weekend, as announced by the Keraunos storm observatory on its Twitter account. This would probably concern the Cévennes, even if another study suggests that abundant rains would water the entire Mediterranean region. Throughout the weekend, it could fall between 80 and 150 mm of precipitation. A Mediterranean episode appears more and more likely for next weekend, with the risk of intense rains and for the moment moderate to strong instability forecast around the basin.
The panel of ensemble models converges towards a risk of strong accumulations of rain. pic.twitter.com/Jm6jNsuEJe— Keraunos (@KeraunosObs) September 20, 2022