A wildfire in La Vall d’Uixò, Castellón, injured seven people and forced the evacuation of thousands of residents on Saturday [1, 2].

The scale of the disaster underscores the extreme vulnerability of Spain's natural parks during peak summer heat, where rapid fire spread can quickly overwhelm emergency response capacities.

The fire broke out Saturday morning within the natural park of Sierra de Espadán [1, 2]. By the afternoon, the blaze spread rapidly, fueled by high temperatures, low humidity, and strong westerly winds [1, 2]. Local authorities said the fire exceeded existing extinction capacities [1].

Emergency services ordered the evacuation of approximately 15,000 people [1]. This mass displacement affected 16 different municipalities across the province [1].

Medical reports confirm seven injuries resulting from the fire [2]. Three patients were hospitalized at Hospital de La Plana for smoke inhalation, and one patient was admitted to the burn unit at Hospital La Fe in Valencia [2].

Firefighters and emergency services deployed seven aerial assets and numerous ground crews to combat the flames [1]. Investigators are now looking into the cause of the blaze. Officials said they suspect the fire may have been intentionally set after several ignition attempts were detected [1].

"Se sospecha que el fuego ha sido intencionado al detectarse varios conatos," El País editorial staff said [1].

“The fire exceeded existing extinction capacities.”

The rapid escalation of the La Vall d’Uixò fire demonstrates how climatic factors—specifically the combination of westerly winds and low humidity—can render standard firefighting resources insufficient. The suspicion of arson suggests a recurring challenge for Spanish authorities in protecting high-risk natural parks during the summer months.