Spain is bracing for a week of unstable weather as a DANA (isolated high-level depression) continues to affect conditions across the country. The system affected Spain over the weekend of 17-18 October, bringing widespread, intense storms, particularly on Saturday. Cold air high in the atmosphere has interacted with moisture to fuel thunderstorms, hail and strong wind gusts. The DANA is shifting southwest, but its proximity to the peninsula will keep instability high in the coming days. Authorities have issued warnings at different levels across the country. Temperatures are also set to fall, especially in the north.
On Monday, 19 October, the DANA is expected to sit between the Gulf of Cádiz and the Canary Islands. Its lingering effects will bring showers and thunderstorms to parts of Andalusia, Extremadura and Castilla-La Mancha. Mountain areas in these communities could see more severe weather, including hail and sudden wind gusts. Additional showers are forecast for southern Aragón, the Cantabrian Mountains and the Pyrenees, where rainfall could exceed 15 to 20 mm in just one hour. AEMET spokesperson Rubén del Campo said storms associated with DANA Adam were expected to continue through Wednesday.
At the storm’s peak, the highest warning level was a red alert for rain, thunderstorms, wind and coastal conditions in the Valencian Community, information from AEMET forecasts reported by RTVE. Orange warnings covered Andalusia, the Balearic Islands and Murcia, while yellow warnings were reported for Catalonia, Extremadura, Galicia, Ceuta and Melilla. The alerts reflected several simultaneous hazards, not rainfall alone. Forecast accumulations exceeded 300 litres per square metre in 24 hours in the Pitiusas, Valencia and northern Alicante. That accumulated total describes a different timescale from the local hourly rainfall figures in this article.
By Tuesday, the DANA will move slightly farther west, allowing a ridge of high pressure to bring a brief spell of stability. But, isolated showers or storms may still develop in the Pyrenees and the Iberian System. The situation will change again midweek as the DANA is drawn back toward the peninsula and absorbed by an advancing Atlantic trough. This will trigger a fresh surge of instability on Wednesday, with afternoon storms expected in inland Galicia, the Cantabrian coast, eastern Andalusia, Murcia, southern and eastern Castilla-La Mancha, the Iberian System and the Pyrenees. Storms could be intense in these areas, with hail and very strong winds possible.
From Thursday, the trough absorbing the DANA will dominate Spain’s weather. Moving in from the northwest, it will bring widespread showers and potentially severe storms to much of northern Spain, especially Galicia, Asturias, Cantabria and northern Castilla y León. Central, southern and eastern regions, including the Balearic Islands, may also see showers, though these are expected to be less intense. Stronger storms are possible in the southeast, particularly in the eastern mountains of Andalusia, Murcia and southeast Castilla-La Mancha. On Friday, as the trough advances, the heaviest rainfall is likely in the northern third of the peninsula. Cantabria and the Basque Country are expected to face the most intense morning storms, followed by the Pyrenees, the Iberian System and Catalonia in the afternoon. AEMET forecasts for 21 October indicated that DANA Adam would be weakening as a frontal system gained influence in Galicia, the Cantabrian region and the Pyrenees.
The temperature change is expected to vary by region rather than bring uniform cooling across Spain. AEMET forecasts reported by RTVE projected maximum temperatures to fall by more than 6°C in parts of eastern mainland Spain, alongside sharper declines in minimum temperatures in some basic mountain areas. Weak frosts were also forecast in northern mountain ranges. In parts of the south, but, maximum temperatures could still reach about 25°C as the weather pattern shifted toward more autumnal conditions. The unsettled spell follows a period of extreme weather, as highlighted in recent coverage of Spain's rapid weather shifts after DANA events. Residents are advised to monitor local alerts and prepare for sudden changes, particularly in regions under warning.
Spain’s climate is marked by sharp contrasts, with Atlantic systems often bringing rapid shifts from heat to storms. A DANA can bring intense, localized rainfall, while cold air aloft interacting with moisture can intensify thunderstorms. Mountainous terrain can further improve rising air and storm development. As the DANA weakens and the Atlantic trough gains influence, the forecast focus is expected to shift from Mediterranean downpours toward rainfall in northern and mountainous areas. Meteorological agencies continue to update warnings as conditions evolve, and local authorities may issue further advisories if the situation worsens. People living in or traveling through affected regions are advised to stay informed and take precautions during periods of heightened weather risk.
