Torrential rain triggers red alerts and flooding in Valencia, Castellón, Tarragona

Spain's State Meteorological Agency, AEMET, raised its warning to red — the highest level on its four-tier scale, reserved for what it calls "extraordinary danger" — for coastal and inland parts of Castellón, Valencia and Tarragona provinces as a storm system moved along the Mediterranean coast from the evening of October 1, 2026, according to the Spanish outlets COPE and El Español.

The red alert for the northern and southern coast of Castellón stayed in force until around midday on Friday, October 2, with AEMET warning of possible 12-hour totals of up to 250 liters per square meter, El Español and El Debate reported. In the Baix Ebre and Montsià districts of Tarragona province, AEMET also warned of more than 90 liters per square meter within three hours, El Español reported.

Rainfall totals differ by station and time window

Measuring stations recorded varying totals depending on location and the exact hours counted. COPE, citing overnight figures through October 1, reported Aín (Valencia province) at 153.8 mm, Eslida (Castellón) at 132 mm and Corbera (Valencia) at 123.7 mm. El Debate, using Friday-morning totals, listed Alcalà de Xivert (Castellón) at 145 liters per square meter, Cervera del Maestre at 140.6 and Peñíscola at 125.8, with Benicarló and Vinaròs both above 89 liters.

El Debate also noted that the city of Valencia itself received comparatively little rain — about 2 liters per square meter on average — even though it remained inside the red-alert zone, underscoring how localized the heaviest downpours were.

*El Debate's separate figure for Corbera (106.8 l/m²) and COPE's figure (123.7 mm) likely reflect different measurement windows or stations within the same municipality; both outlets are listed as sources.

Schools, trains and roads affected

Classes were suspended for large numbers of students across the three provinces, though the two outlets that tallied the figures counted them at different points in the unfolding storm. El Español reported 411,953 students affected as of Friday — 307,435 in Valencia province, 81,628 in Castellón and 22,890 in Alicante. COPE's earlier count, through Thursday night, put the total at about 356,000 students in 103 municipalities: 276,760 in Valencia province, 71,176 in Castellón and 8,073 in Alicante.

Train operator Renfe suspended all Cercanías commuter services in Valencia and long-distance trains toward Catalonia from 18:00 on October 1, according to COPE. El Español reported that the Cercanías C-2 line, initially halted, had resumed service by Friday. Roads including the C-12 near Tortosa and the CV-205 and CV-235 in the Valencian Community were closed by flooding or debris, COPE said, and vehicles were reported trapped on the N-340 highway, per El Español.

In the Baix Ebre district of Tarragona province, about 4,300 electricity users were left without power, COPE reported. Regional authorities in Valencia, the Generalitat, activated the ES-Alert emergency phone-warning system and told residents to avoid travel and move away from low-lying ground near streams and ravines, both outlets said.

Emergency response and casualty count

Firefighters and ambulance crews responded to dozens of calls. COPE reported 53 fire-service interventions and 12 ambulance call-outs linked to the storm in Castellón and Valencia between 6:00 a.m. and midnight on October 1, with most incidents involving flooded streets, garages, or vehicles stuck in water. El Español separately reported 27 incidents handled by Civil Protection in the same window and said firefighters carried out multiple rescues of people trapped in vehicles.

Both outlets reported no deaths or injuries as of their most recent updates on October 1 and the morning of October 2. Civil Protection in Valencia activated Level 0 of its flood emergency plan and opened shelters, including one in Paiporta, COPE reported.

Why the region is on edge

Coverage by COPE referred to residents of the affected municipalities as living in what it called the "zona cero" — ground zero — of the DANA storm that struck the same region in late October 2024. According to the English-language Wikipedia summary of that disaster, the October 29-30, 2024 floods killed approximately 241 people, 224 of them in Valencia province, with the town of Paiporta alone recording 62 deaths; total damage was estimated at roughly €10.7 billion. That earlier disaster is widely cited by Spanish media as the reason this week's red alerts triggered heightened public anxiety even though, as of the sources reviewed, the October 2026 storm has not caused casualties.