It’s the kind of storm that’s so rare and damaging it’s earned a wicked nickname. Dramatic video shows the moment a “Satan’s Storm” hit beaches on Spain’s southern coast, sending beachgoers running.

For my birthday, my partner and I visited one of the most charming beach towns in southern Spain. Tucked along the coast of Málaga, Nerja is known for its crystal-clear waters and pebbly shores. As ...