Protección Civil sent an ES-Alert at 22:10 late Monday, warning thirteen Catalan comarcas of sudden, heavy rain and storms from 8:00 to 14:00 Tuesday. The alert covers coastal and pre-coastal areas from Baix Camp to la Selva. Several Catalan media outlets reported that it reached residents in thirteen to fourteen comarcas.
Officials expect isolated storms, with cells that could bring violent weather to small areas, including intense rain and strong winds, Imma Solé, deputy director of Protección Civil, said. The Servei Meteorològic de Catalunya (Meteocat) identified 6:00 to 12:00 Tuesday as the most dangerous period, with the risk level at 5 out of 6 in some places. The INUNCAT flood risk plan was activated at the alert phase.
Meteocat raised the rain alert to level 5 out of 6. In the hardest-hit spots, rainfall could exceed 40 litres per square metre in 30 minutes and reach 90 litres in three hours. The comarcas under alert are la Selva, Maresme, Vallès Oriental, Vallès Occidental, Barcelonès, Baix Llobregat, Garraf, Alt Penedès, Conca de Barberà, Baix Camp, Alt Camp, Baix Penedès and Tarragonès. El Nacional and other regional sources reported that the most intense storms could bring up to 150 litres per square metre to some towns.
There are no general travel bans or school closures. Authorities advised residents to avoid flood-prone areas and wait before leaving home or school if rain is heavy. They also urged people to use basic roads and never cross swollen streams or flooded paths. For emergencies, call 112. Several official statements said the measures are intended to keep people safe while allowing daily life to continue unless restrictions become necessary.
Protección Civil may send further alerts if radar detects new bursts of heavy rain. Residents should monitor updates and change their plans if needed. Earlier coverage has noted that fast alerts and targeted warnings have become basic tools for handling sudden storms. Emergències Catalunya said the episode was expected to begin overnight and primarily affect coastal and pre-coastal regions on Tuesday. The agency urged people to follow real-time updates as the situation develops.
The risk of flash floods and dangerous conditions is highest in certain zones. Residents should stay alert and make careful choices. With no blanket restrictions in place, officials are relying on the region's readiness, while urging people to heed advice and react quickly if conditions change.