The warning, which will be in force until 21:00 today, is aimed at the districts of Bragança, Viseu, Porto, Guarda, Vila Real, Viana do Castelo, Leiria, Castelo Branco, Aveiro, Coimbra and Braga.

The IPMA justifies this warning because it is expected showers, sometimes strong followed by thunderstorms, and possibly strong wind gusts as well.

For Tuesday, the institute again forecasts periods of rain or showers, especially in the north and central regions, and northwest wind, sometimes strong in the highlands. A small drop in the maximum temperature is also expected.