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A '''tornado''' is a violent rotating column of [[air]] extending from a [[thunderstorm]] to the ground. The most violent tornadoes are capable of tremendous destruction with [[wind]] speeds of up to 400 mph. They can destroy large [[architecture]], uproot [[tree]]s and hurl [[car]]s hundreds of yards. They can also drive straw into trees. Damage paths can be in excess of one mile wide to 50 miles long. In an average year, 1000 tornadoes are reported nationwide.
==Tornado Physics==
Before thunderstorms develop, a change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower [[atmosphere]]. Rising air within the updraft tilts the rotating air from horizontal to vertical. An area of rotation, 2-6 miles wide, now extends through much of the storm. Most strong and violent tornadoes form within this area of strong rotation.
==Occurence==
Tornadoes can happen at any time of the [[year]] and at any time of the [[day]]. In the southern states, peak tornado season is from [[April]] through [[June]]. Peak times for tornadoes in the northern states are during the late [[summer]]. A few southern states have a second peak time for tornado outbreaks in the fall. Tornadoes are most likely to occur between 1 p.m. and 7 p.m.
[[Category:Meteorology]]
==Tornado Physics==
Before thunderstorms develop, a change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower [[atmosphere]]. Rising air within the updraft tilts the rotating air from horizontal to vertical. An area of rotation, 2-6 miles wide, now extends through much of the storm. Most strong and violent tornadoes form within this area of strong rotation.
==Occurence==
Tornadoes can happen at any time of the [[year]] and at any time of the [[day]]. In the southern states, peak tornado season is from [[April]] through [[June]]. Peak times for tornadoes in the northern states are during the late [[summer]]. A few southern states have a second peak time for tornado outbreaks in the fall. Tornadoes are most likely to occur between 1 p.m. and 7 p.m.
[[Category:Meteorology]]