Presentation on theme: "Tornadoes are very violent and kill many people each year."— Presentation transcript:
1 Tornadoes are very violent and kill many people each year.
2 TornadoA tornado is a rotating column of air,that extends downward from a thunderstorm to the ground. Winds speeds in a tornado can reach 417km/h or more. The path can be 1km wide and 83km long.
3 How Is A Tornado Formed?Tornadoes form in a rotating thunderstorm called a super cell .Super cells form when a cold polar air mass meets a warm tropical air mass. The result is a great instability caused by the rising warm air. A narrow zone of cumulonimbus clouds form giving life to tornados. Lightning flashes,heavy rain begins to fall and hail begin to fall. Soon after the easiest recognizable part of a tornado forms, the funnel.
4 Tornado DamageHomes being destroyed.Tons of flying debris
5 Tornado AppearanceTornadoes are most likely to occur in the middle of the United States in what we like to call “Tornado Alley.”Almost all tornadoes occur in the middle of U.S or on the eastern coast. This map is current to 1999.
7 Preparing For A Tornado Conduct tornado drills each tornado season.Designate an area in the home as a shelter,like a bathroom,closet,or in a basement.A TORNADO WATCH means that tornados are possible in your area. Remain alert for approaching storms and rapidly changing weather conditions.A TORNADO WARNING means that a tornado has been sighted or indicated by weather radar. A warning indicates danger to the life and property of those in the path of the storm. Move to your pre-designated shelter.
8 Tornadoes WorstThe Tri State Tornado that hit the U.S States of Missouri, Illinois, and Indiana on March 18th,1925 is perhaps the most destructive tornado wind in history of the country. This tornado killed 1000 and injuring Take a look at this news paper article. The most recent tornado was actually May 11th 2010 in Clyde,Ohio it was a brief touchdown but it was still a tornado.
10 Tornado interesting Facts 3 out of every 4 tornados in the world happen in the United States.A tornado in Oklahoma once destroyed a whole motel. People later Found the motel’s sign in Arkansas.The United States has an average of 800 tornados every year.In 1928, a tornado in Kansas plucked the feathers right off some chickens.Waterspouts are tornados that form over water.