1962 Vallés floods
1962 CE.
Shown on the map at 41.506°, 2.070°.
The 1962 Vallès floods took place on 25 September 1962, mainly in the comarca of Vallès Occidental and to a less extent in Vallès Oriental and Barcelonès. The flood was caused by a cold drop (gota freda) with heavy rain, overflowing the Llobregat and Besòs rivers. The official death toll was 617, but estimates imply between 800 and 1000 deaths.
Text from the Wikipedia article 1962 Vallés floods, licensed CC BY-SA 4.0.