TornadosBlue2

Tornadoes
Payton Moran & Joey Roberts Blue Class

Introduction Tornadoes are a very dangerous and destructive natural disaster. Tornadoes can be very unexpected because there is only a 13 minute warning prior to the storm. Tornadoes occur during severe thunderstorms when warm air meets cold air which creates instability in the atmosphere. The life of a tornado could last anywhere from a few minutes to many hours(2). These natural disasters mainly occur during spring and early summer, the most common months for tornadoes to occur is in May and June. A scale has been developed called the Fuijta Scale, which determines how powerful the storm was.(1)

Tornado Formation

Tornado

[|Tornado Formation]

Dangers Tornadoes are the most destructive forces of nature. Depending on the ranking of the tornado from the fujita scale, that determines how dangerous the storm is. Tornadoes have the ability to overturn car,mobile homes, and trains to blowing away houses and throwing cars over 300 ft. Tornadoes can leave families homeless and having no where to go.(2)

F-Scale

Conditions of Formation Tornadoes occur when warm and cold air come into contact with each other, the cold are will go down and the warm air will rise. When this happens the air begins to form into an invisible funnel and starts to twist. The area of rotation within the funnel can spread 2-6 miles wide.(2) [|F- Scale]

=Historical Event = One of the most destructive tornadoes documented happened on March 18, 1925 trough the tri-state region of Missouri, southern Illinois, and parts of southwest Indiana. The path of this tornado was 219 miles and it left 695 dead and injured 2,771 people, along with causing m assive loss in property. This tornado was ranked to be an F5, winds reached up to 261 mph- 318 mph.(4)

Destruction of the March 18th 1925 tornado [|TornadosBlue2] Safety To stay safe from tornadoes people are encouraged to stay away from windows an keep underground.(3) To also stay safe from tornadoes there are enviormental clues such as, dark often greenish skies, wall clouds, large hail, and loud roars. People living in mobile homes, and people in automobiles are most in danger of being hit by a tornado.(2)

Tornado safety shelter underground

Sources (1)"Tornadoes." // Infoplease: Encyclopedia, Almanac, Atlas, Biographies, Dictionary, Thesaurus. Free Online Reference, Research & Homework Help. — Infoplease.com //. Web. 01 Dec. 2010. . (2)"Tornadoes." // NOAA's National Severe Storms Laboratory //. Web. 01 Dec. 2010. . (3)"Tornadoes." // Weather Wiz Kids Weather Information for Kids //. Web. 01 Dec. 2010. . (4)"Tornadoes." // Oklahoma Climatological Survey //. Web. 01 Dec. 2010. . (5) "Severe and Hazardous Weather." // ... In Search of Severe Weather //. Web. 01 Dec. 2010. .