Mainland Portugal faces a weekend of strong atmospheric instability, with intense thunderstorms forecast for the North and Centre regions from Saturday afternoon (starting at 3pm), caused by the thermal contrast between extreme heat at the surface and a cold air mass at altitude, which enhances the formation of convective cells with heavy rainfall, lightning and possible hail. Simultaneously, 14 districts remain under yellow warning due to high temperatures, with maximums ranging between 27°C on the coast and 38°C in the Alentejo. However, the storm episode will be short-lived, with substantial improvement expected by Sunday, when the sky will clear and temperatures will drop generally, especially on the coastal strip.
oRegiões05/09/26, 08:00
