The tornadoes hit around the port city of Genoa, with some eyewitnesses stating they came close to hitting the wreck of the Costa Concordia cruise ship.
Flights to the city’s airport were diverted and those leaving delayed, while trains were also interrupted and roads closed, La Repubblica reported.
Damage is said to amount to millions of euros, with roofs ripped off buildings in the Prà neighbourhood and the seafront strewn with sun loungers hit by the stormy weather.
In Genoa’s Pegli neighbourhood 100mm of rain fell in just an hour, while footage shot by witnesses shows raging streams.
Locals can be heard responding to the “day of fear”, as described by YouReporter, as they watch the tornadoes from afar. “It’s incredible” one person can be heard saying, while others remark on the huge size of one of the tornadoes and another on its impressive nature.
Watch a video of the tornadoes: