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we learn about the how to tornado form

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  1. 1. TORNADO Presented by Venkata Ramana
  2. 2. TORNADO <ul><li>Interoduction of Tornado </li></ul><ul><li>Cheracteristics of Tornado </li></ul><ul><li>Torando formation </li></ul><ul><li>Types of tornadoes </li></ul><ul><li>Effects of Tornado </li></ul><ul><li>Tornado safty </li></ul>
  3. 3. Interoduction <ul><li>A localized and violently destructive windstorm occurring over land characterized by a funnel-shaped cloud extending toward the ground </li></ul>Defination of tornado
  4. 4. Characteristics <ul><li>Tornado generally apperes in funnel shape </li></ul><ul><li>Most Tornadoes have wind speeds between 40km/h and 110km/h. </li></ul><ul><li>Majority if Tornadoes in the world occur in the Tornado Alley region of the United States also occur in North America, South Africa, South-Centeral and eastren Asia,Australia,New Zealand,Philippines. </li></ul>
  5. 5. Continued <ul><li>At each year more then1000 Tornadoes hit the united states </li></ul><ul><li>A typical tornado travels at around 10-20 miles per hour. </li></ul><ul><li>Most tornadoes occur during the months of May, June, July and August in the late afternoon and evenings </li></ul>
  6. 6. Continued <ul><li>Tornadoes generally travel from the southwest at an average speed of 70 miles per hour. </li></ul><ul><li>Torando rotates in circle in a counter clockwise direction. </li></ul><ul><li>Scientests generally this roatation is called mesocyclone. </li></ul><ul><li>A tornado is also commonly referred to as a &quot;twister&quot;. </li></ul><ul><li>The term &quot;cyclone&quot; is used as a synonymfor &quot;tornado&quot; </li></ul>
  7. 7. Torando formation <ul><li>Most tornadoes form from thunderstorms. </li></ul><ul><li>You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When these two air masses meet, they create instability in the atmosphere. </li></ul>
  8. 8. Continued <ul><li>A change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. </li></ul><ul><li>An area of rotation, 2-6 miles wide, now extends through much of the storm. </li></ul><ul><li>Most strong and violent tornadoes form within this area of strong rotation. </li></ul>
  9. 9. Types of tornadoes <ul><li>A waterspout is a tornado over water. A few form from supercell thunderstorms, but many form from weak thunderstorms or rapidly growing cumulus clouds. Waterspouts are usually less intense and causes far less damage. </li></ul>1.weater support
  10. 10. Continued Generally weaker than a supercell tornado, a landspout is not associated with a wall cloud or mesocyclone. It may be observed beneath cumulonimbus or towering cumulus clouds and is the land equivalent of a water support 2.Land support
  11. 11. Effects of Tornado
  12. 12. Effects of Tornado <ul><li>1. Tornadoes can make People die. </li></ul><ul><li>2. At each year 5000 average number of people were died. </li></ul><ul><li>3. The most extreme tornado in recorded history was the Tri-State Tornado. </li></ul><ul><li>4.which roared through parts of Missouri, Illinois, and Indiana on March 18, 1925. </li></ul>
  13. 13. Continued <ul><li>5. it is the deadliest single tornado in United States history (695 dead). </li></ul><ul><li>6. The deadliest tornado in world history was the Daultipur-Salturia Tornado in Bangladesh on April 26, 1989, which killed approximately 1300 people. </li></ul>
  14. 14. Continued <ul><li>On May 21, 1950, a tornado which touched-down at Little London (Buckinghamshire) tracked 107.1 km toCoveney. From there it continued as a funnel cloud, travelling another 52.6 km to Shipham (Norfolk) where it was last seen disappearing out across the North Sea. </li></ul>