Spain’s State Meteorological Agency, Aemet, has issued an orange warning for the Gulf of Valencia as Storm Harry brings dangerous maritime conditions. The alert covers the coasts of Valencia and Castellón, northern Alicante and Ibiza, with waves expected to exceed four metres during the day on Tuesday.

Forecasters have also warned of a storm surge, caused by very low air pressure over the sea, which can raise sea levels above normal tides. Aemet says this effect, combined with powerful waves, could significantly increase the impact on exposed stretches of coastline, including the risk of falling trees, branches and unstable structures.

Strong northerly winds are expected to be a key feature of the storm, particularly along the southern coast of Valencia and the north of Alicante. A wind corridor over the western Mediterranean is forecast to accelerate gusts and generate heavy seas, leading to further disruption along the coast.

Local authorities in València have advised people not to approach beaches or seafront promenades during the warning period. In addition to the marine conditions, widespread rain is forecast, with yellow warnings for locally heavy rainfall in parts of southern Valencia and northern Alicante.