The Portuguese Institute of the Sea and Atmosphere (IPMA) are warning that the weather in mainland Portugal is expected to undergo “a significant change” from mid-afternoon on Thursday, with rain and a gradual drop in maximum temperatures.
"The dry and mild weather will give way to rainy weather and a gradual decrease in maximum temperatures, between October 28th and 31st."
The weather forecast points to the weakening of the anticyclonic region that extends from the Azores to Western Europe, which will allow "the passage of tropical air masses with a high water vapour content, transported latitudinally, in a pattern commonly known as 'atmospheric river' ".
"This meteorological situation should lead to persistent precipitation in most of the territory and has the potential to produce persistently heavy rains, especially in the Centre and South regions, where the impacts could be significant", indicated the IPMA.
In this context, the rain should reach the Minho and Douro Litoral from mid-afternoon on Thursday, then it will gradually spread to the remaining North and Centre regions, and, from Friday, to the South and Algarve region, according to weather information.
"On the other hand, the wind from the south quadrant should increase in intensity, particularly in the highlands", said the Institute, also highlighting the forecast for an increase in maritime agitation on the coast of mainland Portugal.
You can consult the website www.ipma.pt, which is updated daily at 17:30.
Original article available in Portuguese at http://postal.pt/
