Overview
- Météo‑France placed the Rhône, Loire and Ardèche under orange rain‑flood vigilance from Friday night into Saturday, with the rain band shifting toward the Rhône valley, the Alps and PACA during the day.
- Expected short‑term rainfall totals range from 50–80 mm in the Lyonnais and the Gier valley to 80–100 mm in the Pilat and north Vivarais, reaching up to 120 mm in the Ardèche Cévennes, prompting localized flood risk.
- An unsettled weekend will bring frequent showers and thunderstorms across central and southeastern regions, with gusts commonly 60–80 km/h and locally above 80 km/h in exposed areas including the Rhodanien and Pyrenean crests.
- After several unusually mild days, forecasts indicate a 10–20 °C temperature drop early next week as a polar air mass arrives, producing widespread morning frosts in many lowland areas.
- Snow is expected to become possible at modest elevations as the freezing level lowers toward 800–1,000 m, locally 400–700 m in the east later in the week, according to La Chaîne Météo.