ISBN: | 978-5-5124-1945-8 |
High Quality Content by WIKIPEDIA articles! This page documents the tornadoes and tornado outbreaks of 2009. The majority of tornadoes form in the U.S., but they can occur almost anywhere under the right conditions. A lesser number occur outside the U.S., most notably in parts of neighboring southern Canada during the Northern Hemisphere`s summer season, but are also known in Europe, Asia, and Australia, e.g.