Tornadoes
Types of Tornadoes
Multiple Vortex
is a type of Tornado in which 2 or more columns of spinning air rotate about their own axis and at the same time revolve around a common centre.
Waterspout
is defined by the National Weather Services as a Tornado over water.
Landspout
is a dust tube tornado
Top 10 Deadliest Tornadoes in the USA
10. Beecher Tornado
Location: Flint, Michigan
Date: 8 June 1953
Category & Wind: F5, 417 - 508 km/h
Damage: Killed 116 people and 844 injuries
9. New Richmond Tornado
Location: New Richmond, Wisconsin
Date: 12 June 1899
Category & Wind: Unknown
Damage: Killed 117 people and 150 injuries
8. Amite, Lousiana & Purvis Tornado
Location: From Amite to Purvis
Date: 24 April 1908
Category & Wind: Unknown
Damage: Killed 143 people
7. Joplin, Mississippi Tornado
Location: Joplin
Date: 22 May 2011
Category & Wind: EF5, Unknown
Damage: Killed 158 people and 1000 injuries
6. Woodward Tornado
Location: Boarders of Oklahoma
Date: 9 April 1947
Category & Wind: F5, 80km/h
Damage: Killed 181 people and 1000 injuries
5. Gainesville Tornado
Location: Gainesville
Date: 6 April 1936
Category & Wind: Unknown
Damage: Killed 203 people
4. Tupelo Tornado
Location: Tupelo , Mississippi
Date: 5 April 1936
Category & Wind: F5, Unknown
Damage: Killed 216 people and 700 injuries
3.St. Louis Tornado
Location: St. Louis, Missouri
Date: 27 May 1896
Category & Wind: Unknown
Damage: Killed 255 people
2. Natchez Tornado
Location: Started in Concordia Parish Ended in Natchez, Mississipi
Date: 6 May 1840
Category & Wind: Unknown
Damage: Killed 317 people
1. Tri-State Tornado
Location: Tri State
Date: 18 March 1925
Category & Wind: Unknown
Damage: Killed 695 people and thousands injured
Impact of a Tornado
It is rated by the strength of the Tornado.
There are several scales to use. One is the Enhanced Fujita Scale.
An F0 tornado, the weakest category, damages trees, but not substantial structures. An F5 tornado , the strongest category, rips buildings off their foundations and can deform large skyscrapers.
Definition of a Tornado
A tornado is a rapid column of air that is in contact with both surface of the Earth and a Cumulonimbus Cloud.
Top 5 Largest Tornadoes
5. Tri State Tornado
Width: 1.09 - 1.61Km
Date: 18 March 1925
Location: Southern Missouri ,Illinois and Indiana
Duration: 217 Minutes
Category: F5
Wind: 117.48Km/h
4. Bridge Creek-Moore Tornado
Width: 1.61 - 2.315Km
Date: 3 May 1999
Location: Grady, McClain, Cleveland and Oklahoma
Duration: 85 Minutes
Category: F5
Wind: (484) 32Km/h
3. Mulhall tornado
Width: 2.4 - 7.05Km
Date: 3 May 1999
Location: Mulhall, Oklahoma
Duration: Unknown
Category: F4
Wind: 418.43Km/h
2. Hallam Tornado
Width: 4Km
Date: 22 May 2004
Location: Jefferson, Saline, Gage, Lancaster and Otoe Countries
Duration: Unknown
Category: F4
Wind: 320 Km/h
1 El Reno Tornado
Width: 4.2Km
Date: 31 May 2013
Location: Canadian County, Oklahoma, USA
Duration: 40 Minutes
Category: EF3
Wind: 484Km/h