Strong precipitation was seen all along the western coast of the country from Tuscany to the southern region of Campania, including the northeast of Sardinia. In Venice, the famous St. Mark's Square was submerged due to the exceptionally intense "acqua alta," or high waters, which were expected to exceed 4.5 feet (1.4 metres).
The square is particularly affected by the high tides, as it is located in one of the lowest parts of the city. The vestibule of the basilica was also inundated with water, and authorities planned to watch the building overnight. Pierpaolo Campostrini, a member of St. Mark's council, said the scale of the flooding on Tuesday had only been seen five times in the long history of the basilica, where construction began in 828 and which was rebuilt after a fire in 1063.