An Atlantic front will cross the Peninsula and the Balearic Islands from the northwest this Wednesday, so cloudy skies are expected in the northern third, with rainfall in the north of Galicia, the Cantabrian area, the upper Ebro, northern Iberia and the Pyrenees, tending to less except in the Cantabrian Sea and the western Pyrenees, where they will be more abundant and persistent, according to the forecast of the State Meteorological Agency (Aemet).
For today, very strong gusts of wind (up to 80 km/h) are also expected in the lower and middle Ebro, the Pyrenees, the Central and Iberian systems, the north of the Valencian Community, Ampurdán, Menorca and the Cantabrian Sea. In all these areas, the agency has activated the yellow warning.
The instability caused by this new front will not last long. From Friday, December 22 to Sunday, December 24, the weather will be marked by the proximity of the anticyclone to the Peninsula, dominating high pressures and atmospheric stability. Thus, the skies will generally be slightly cloudy, with probable morning mists or fogs in depressions in the northeast and valleys of the Tagus and Guadiana, but especially in the northern plateau where they would be denser.
Therefore, the coming days of Christmas Eve and Christmas will generally have clear skies, except for fog and precipitation that will affect points in the northern half, the agency summarizes its special prediction for the holidays.
Regarding temperatures, we are talking about a cold week with temperatures typical of the season. For both Wednesday and Thursday, temperatures will have values typical of these dates, with weak nocturnal frosts widespread on the northern plateau and in the mountain systems, and locally on the southern plateau and depressions in the northeast of the peninsula. And no big changes are expected for December 24 or 25.
From December 22 to 24, the weather will be marked by the proximity to the Peninsula of the Atlantic anticyclone, dominating high pressures and atmospheric stability. Most of the scenarios predicted by Aemet suggest that, for Christmas Eve, there will be clear skies, but there is a low probability that a front will enter that same day, with widespread rainfall in the extreme north.
From December 25 to 27, the Atlantic anticyclone will weaken, the agency explains in its special prediction. This will favor the formation of more widespread, dense and persistent fogs, affecting the northern plateau, valleys of large rivers, depressions in the northeast and, with less probability, the Balearic Islands. Most scenarios suggest that, at the end of Wednesday, a front will enter Galicia.
