A mass of polar air, originating in the Scandinavian region, will invade the north of the Iberian Peninsula later this week, cause further drops in temperature on Thursday.
According to a statement from the Portuguese Institute of the Sea and Atmosphere (IPMA), “the recent weather in mainland Portugal has been influenced by a mass of polar air, which has given rise to temperatures slightly lower than normal for the time of year. ”
From Monday afternoon, “this air mass will be temporarily replaced, essentially in the Central and Southern regions of the continent, by another of warmer maritime origin, transported by a depression centered to the west/northwest of the Iberian Peninsula ”, which will cause “cloudiness and precipitation and a rise in the minimum temperature” on Tuesday, said the IPMA.
According to the note, starting late Wednesday afternoon, “a mass of continental polar air, originating in the Scandinavia region, will gradually invade the north of the Iberian Peninsula, and later the south, resulting in a further drop in temperature, especially on Thursday."
On January 11th, minimum temperatures are expected between -5 and 0°C in the North and Central inland areas of Portugal, between 1 and 5°C in the South inland area and North and Central coast, and up to 8°C on the South coast”, reads the statement from the IPMA.
On Friday, “a further drop in the minimum temperature is expected, of the order of 2 to 4°C, meaning values of up to -8°C could be reached in some places in the northeast of Trás-os-Montes and Beira Alta, and close to 0°C in several places on the coast, especially in the North and Center”.
“As such, the formation of ice or frost is expected, especially in the North and Center interior, where it will have a more significant impact on road traffic”.
For Thursday and Friday, forecasts indicate that “the maximum temperature should vary between 4 and 8°C in the North and Center interior, and between 8 and 14°C in the South interior and coast, and should be below 4°C in some places in the northeast of Trás-os-Montes and Beira Alta, particularly in the highlands”.
“For this reason, it will be likely that a cold weather warning will be issued from the 11th for the districts of Bragança, Vila Real, Guarda and Viseu, which could eventually be extended to other districts”, admitted the IPMA, highlighting that it was issued yellow warning of snowfall for the mountains in the extreme north, above 600/800 metres in altitude, due to the impact it could have due to accumulation, between the end of Monday and the early hours of Tuesday.
The IPMA added that, on Tuesday and Wednesday, “rainfall is expected to occur, generally light, with a probability of between 70 and 100% in most of the country on the Tuesday, being less than 70% in the North regions and Center on the 10th and less than 50% in the South region”.
“On these days, the precipitation that occurs in the far north will be in the form of snow approximately above 600/800 metres in altitude (rising to 1,000/1,200 metres during the day), and above 1,400/1,600 metres in the remaining mountains”, says the IPMA statement.
Source https://postal.pt/
