The Valencian Community is under an orange alert for violent storms and hail. Aemet forecasts heavy rain and damaging winds, especially on the northern Alicante coast. Weather warnings remain in effect through early Thursday.
The State Meteorological Agency (Aemet) has issued an orange alert for the Valencian Community, warning of violent storms with hail as strong winds are also forecast. The highest risk is along the northern coast of Alicante, where rainfall could reach 40 millimeters in an hour. Hazardous conditions are expected to last until 6:00 a.m. Thursday. The orange alert takes effect from 14:00 on September 9, while the most dangerous period for northern Alicante is likely to continue until midnight Wednesday, information from Aemet bulletins and other Spanish meteorological sources.
Residents in affected areas are preparing for a night of unstable weather. Yellow warnings are also in place for the northern and southern coasts of Valencia, as well as the southern coast of Alicante, where up to 20 millimeters of rain per hour and sudden hailstorms are possible. The warnings cover the late evening and early morning hours. Strong winds add to the risk for coastal communities. Recent Aemet updates have extended yellow warnings to inland areas and the south of Valencia, broadening the risk zone.
"The cause of the abrupt weather deterioration is described as the arrival of an upper-level trough and cold air over warm sea waters. This significantly increases the likelihood of intense convection, with hail and locally very heavy rainfall also possible."
Aemet
The coast is expected to bear the brunt of the storms, while conditions inland will be less severe. On Thursday, coastal cloud cover will gradually clear by afternoon, while skies inland should stay mostly clear. Early morning showers and thunderstorms are likely in southern coastal areas but should ease as the day goes on. Minimum temperatures will drop across the region. Maximums will fall along the coast and in Alicante’s interior, rise in northern Castellón, and remain steady elsewhere. In Alicante, winds will shift from moderate northerlies to lighter breezes, turning east and south by midday. Moderate gusts remain possible along the coast. The cooling fits the broader Mediterranean weather pattern described in recent Aemet and national weather reports.
Provincial capitals will see noticeable temperature changes. València is forecast to have a minimum of 17°C and a maximum of 28°C, while Alacant is expected to reach 19°C and 29°C. Castelló de la Plana is forecast at 15°C and 28°C. These figures reflect the cooling that comes with the storms, a pattern also seen in other Mediterranean regions, as reported earlier. After a period of intense heat, Aemet expects temperatures to drop sharply, with calm mornings giving way to a high chance of afternoon thunderstorms.
By Friday, Aemet expects the weather to settle. No alerts are planned, skies should clear across the Valencian Community, and temperatures will begin to rise again. Minimums are expected to increase in Castellón’s interior, with maximums climbing throughout the region. Winds will begin from the west in the morning, then shift east and south by midday. Moderate gusts are possible along the coast. This episode forms part of a wider pattern of Mediterranean instability. National weather bulletins have also issued orange alerts for Catalonia and the Balearic Islands, as well as Murcia and parts of Almería.
"Official reports stress the practical risks of these storms: locally very heavy downpours can quickly flood streets, ravines, and low-lying areas, causing impressive traffic disruptions. The warnings are part of a broader Mediterranean episode, with several Spanish regions under orange alert for severe weather."
Aemet
These rapid weather changes show how unpredictable late summer can be in eastern Spain. Residents and local authorities are being urged to stay alert as climate variability continues to challenge forecasts. Conditions can shift quickly from calm to dangerous, especially along the coast, making timely alerts and clear communication from agencies such as Aemet impressive for public safety and daily planning in the region.
