Tornadoes

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Tornadoes
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Tornado Facts

• A tornado is a rotating column of air attached to
  a thunderstorm that comes in contact with the
  ground.
• Winds can reach 300 mph.
• Can be more than a mile wide.
• Tornadoes are most common in N. America.
• Can travel at speeds from 5mph - 70mph.

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Tornado Strength

• F-0 40-72 mph
• chimney damage, tree branches broken
• F-2 113-157 mph
• considerable damage, mobile homes demolished,
  trees uprooted
• F-4 207-260 mph
• well-constructed walls leveled, cars thrown,
  buildings destroyed
• F-5 261-318 mph
• homes lifted off foundation and carried
  considerable distances, autos thrown as far as
  100 meters

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States where most Tornadoes occur

• 1.Texas 6. Iowa
• 2. Oklahoma 7. Missouri
• 3. Kansas 8. Illinois
• 4. Nebraska 9. Indiana
• 5. Colorado 10. South Dakota

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F-5 Tornado Damage

• Greensburg, KS May 4, 2007

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F-0 Tornado Damage
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2009 Tornado in Wyoming
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Tornado Alley