Overview
- Météo-France and other services forecast widespread rain through the week, with some areas potentially receiving up to three times the usual weekly totals.
- Thursday is under heightened surveillance for very strong winds on the northern third and Atlantic–Channel coasts, with gusts near 100 km/h inland and around 110 km/h on exposed shores such as Boulogne-sur-Mer.
- Heavy accumulations raise localized flood and river-rise risks from the west of the Massif Central and Aquitaine to eastern relief and Manche-adjacent coasts.
- The most substantial precipitation is expected along an axis from Charente-Maritime to the Italo‑Swiss border, with the centre‑west and the northern Alps particularly exposed and snow likely above roughly 2,500 m in the Alps.
- Mediterranean authorities warn of dangerous swell and advise against going to sea, while forecasters note a cooling trend from Thursday after a milder-than-normal start; details may be updated as forecasts refine.