Sicily Tornadoes happened in 1851.
Tornadoes can happen anywhere in the world that gets thunderstorms. Sicily has a rather warm climate and is surrounded by water, which means there is a good amount of energy available for thunderstorms. Storms fueled by Mediterranean moisture encounter wind shear, differences in wind speed and direction with altitude, and begin rotating. That rotation allows them to produce tornadoes.
Tornadoes can happen in any place that gets thunderstorms.
Tornadoes happen every year.
Tornadoes happen in Miami for the same reason they happen anywhere else. See the related question for how tornadoes form in general.
Tornadoes happen in Africa because of the mountains they have or because of the weather.
Tornadoes can happen in Ottawa. Canada does get tornadoes, though not as often as the U.S. due to its cooler climate.
Tornadoes can happen anywhere in the world except cold areas like Antarctica and the north pole. Tornadoes are mostly common in United States.
Most tornadoes in the U.S. happen in spring and early summer.
Yes, tornadoes can happen at any time as long as the weather is right.
Tornadoes happen in the summer every year.
Tornadoes can happen anywhere - they're usually formed from severe thunderstorms.
Yes. Tornadoes, including some significant ones, can and do happen the the Philippines.