Time. Mass of cold air makes temperatures drop | Meteorology



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Eleven districts of mainland Portugal are under yellow warning due to snowfall and ocean waves, according to the Portuguese Institute for the Sea and Atmosphere (IPMA).

According to the IPMA, the districts of Viana do Castelo, Porto, Lisbon, Leiria, Aveiro, Coimbra and Braga are under yellow alert (the least serious) until 9 in the morning of this Wednesday, where the waves will be. northwest and can reach five meters.

The yellow warnings for snowfall continue until 12 noon on Thursday and are in force in the districts of Bragança, Guarda, Vila Real, Viana do Castelo, Castelo Branco and Braga.

According to the IPMA, the snow should fall above the level of 1,200 / 1,400 meters, which can condition or block roads, cause damage to structures or trees by accumulation and damage some local supplies.

For this Wednesday, the IPMA foresees a decrease in the minimum temperature, rains in the Miño from the afternoon, which extend to the Central coast, snowfalls above 1,000 / 1,200 meters of altitude and more intense wind in the mountains and coast West. .

The entry into mainland Portugal in 2021 will be marked by the cold, due to the joint action of an anticyclone located northwest of the Azores archipelago and the depression Beautiful, according to IPMA.

According to information released by the institute this Tuesday, the year-end forecast indicates that depression Beautiful it will originate a flow from the north that will carry a mass of cold air over the mainland in the coming days, with the expectation that the cold will continue until at least January 1.

This Wednesday, the minimum temperatures will range between -1º in Vila Real and Viseu and 7º in Sagres, while the maximum between 4º in Guarda and 14º in Santarém.

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