Saint Marcellus' flood kills at least 25,000 people on the shores of the North Sea.

January 17, 1362

Saint Marcellus's flood or Grote Mandrenke was an intense extratropical cyclone, coinciding with a new moon, which swept across the British Isles, the Netherlands, northern Germany, and Denmark around 16 January 1362 (OS), causing at least 25,000 deaths. The storm tide is also called the "Second St. Marcellus flood" because it peaked 16 January, the feast day of St. Marcellus. A previous "First St. Marcellus flood" drowned 36,000 people along the coasts of West Friesland and Groningen on 16 January 1219.