On October 14th 1879 a thunderstorm caused extensive flooding in the Spanish region of Murcia. More than 5,000 people had to flee their homes, losing everything they owned, and over 150 died. The disaster was widely reported in the press at the time, resulting in many fundraising efforts, such as mentioned here.
Murcia is still prone to flooding. In 2009 a 25-year-old woman drowned in her car during a bad storm which had already claimed two lives.