Spain's national weather agency, Aemet, has issued a special warning across the north-west of the country, with torrential rain and strong winds and waves expected throughout Wednesday.
"From Tuesday to Wednesday a strong Atlantic storm will make its way across northwestern Spain before heading towards the British Isles," Aemet said in a statement.
A warning has been issued across 33 provinces. Aemet is forecasting waves of up to six metres off the Galician coast and winds of up to 120 kilometers per hour.
Torrential rain is forecast for Galicia, the neighbouring region of Asturias and northwest Castilla y León as well as much of western Spain, from the north to the south.
Spain's interior minstry has issues warnings for people to be careful in the windy weather:
Ante las FUERTES RACHAS DE VIENTO, aléjate de cornisas, zonas arboladas, paseos marítimos y edificios en construcción pic.twitter.com/4tgME9Qlkr— Ministerio Interior (@interiorgob) September 16, 2015
"After strong gusts of wind, stay away from ledges, wooded areas, sea-front promenades and buildings under construction."
Lluvia acumulada según el GFS hasta las 2AM del viernes.Que preparen las zodiacs en Galicia: pic.twitter.com/wO71PYJBlF— meteomostoles (@meteomostoles) September 13, 2015
The bad weather is due to a cyclogenesis - pre-cyclone conditions that are caused by a strengthening of low pressure in the atmosphere.
Floods in southern Spain claimed four lives in early September and caused chaos along the country's southern coast.