Eastern regions such as Valencia and Catalonia could see seven times the typical monthly rainfall on Tuesday

Spain is set to experience an extraordinary weather event this week, with severe rainfall forecasted, particularly along the eastern coast. Regions such as Valencia, Catalonia, Murcia, and eastern Andalucía could see more than 150mm of rain within just 24 hours on Tuesday, which is more than seven times the typical average for this month. Gibraltar is also expected to experience significant rainfall, with totals exceeding 40mm.

The intense downpour is likely due to a phenomenon known as a gota fría, or “cold drop”, which occurs when cold air moves over the warm waters of the Mediterranean Sea. This seasonal occurrence creates atmospheric instability, causing warm, saturated air to rise rapidly, leading to the formation of towering cumulonimbus clouds in a matter of hours, dumping heavy rain across eastern parts of Spain.