Continental Portugal will be affected today and Friday by rain and strong wind and sea agitation due to the passage of frontal systems associated with Hortense depression, informed the Portuguese Institute of the Sea and the Atmosphere (IPMA).
In a statement, the IPMA states that the effects of the Hortense depression and another, unnamed and less active, will be felt by the increase in the intensity of the wind, rain and strong maritime unrest.
According to IPMA, which cites the Spanish meteorological service AEMET, the Hortense depression, it will be located today 500 kilometers northwest of A Coruña and approach the northern coast of Galicia at dawn on Friday.
"The Hortense depression will be the second of two depressions that will reach the Bay of Biscay today (the first depression has no name given that it has less activity)", says the IPMA in the note.
Today and Friday, according to the IPMA, the frontal systems associated with these two depressions will continue to cause heavy rainfall on the continent, especially on the north and central coast.
"The accumulated values will be of the same order of magnitude as those that occurred during the passage of the frontal system associated with the Gaetan depression" on Tuesday and Wednesday, according to the Institute.
Due to this situation, wind in the western quadrant is forecast on the continent with periods of greater intensity at dawn and Friday morning with gusts that can reach 95 kilometers per hour (km / h) on the coast north of Cabo Raso and 120 km / h in the highlands.
“The biggest difference in relation to the Gaetan depression will be the increase in sea agitation on the coast north of Cabo Raso where, from the early hours of Friday, the waves will be from the northwest of 5 to 6 meters, reaching 10 to 12 meters maximum height ”, highlights the IPMA.
The forecast points to a decrease for waves with 4 to 5 meters at the end of the day on Friday.
Following this forecast, the IPMA placed the districts of Viana do Castelo, Braga, Porto, Vila Real, Viseu, Guarda, Coimbra and Castelo Branco under orange notice between 21:00 today and 06:00 on Friday, according to the Portuguese Institute of the Sea and the Atmosphere (IPMA).
The institute also placed the districts of Viana do Castelo, Vila Real, Braga, Porto, Viseu and Aveiro under yellow warning between 09:00 today and 03:00 on Friday due to the forecast of rainy periods passing through showers , sometimes strong accompanied by a thunderstorm.
The entire Portuguese coast (Viana do Castelo, Braga, Porto, Aveiro, Coimbra, Leiria, Lisbon, Setúbal, Beja and Faro) is under yellow warning until 21:00 pm on Friday because of the sea agitation, with waves expected from west / southwest with 4 to 5 meters, gradually passing northwest waves.
The orange warning indicates a moderate to high risk meteorological situation and yellow is issued by the IPMA whenever there is a risk for certain activities depending on the meteorological situation.