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- Most common in the United StatesLiveScience: Tornado Science, Facts and History
- Wind speeds can exceed 300 mphLiveScience: Tornado Science, Facts and History
- Can be up to a mile wide on the groundLiveScience: Tornado Science, Facts and History
- Can last a few seconds up to an hour or more
- A single storm can produce multiple tornadoes
- Strength is measured on the Enhanced Fujita Scale
- In the U.S., they usually occur between 4 and 6 p.m.LiveScience: Tornado Science, Facts and History
- Average time on the ground: Four to six minutesLiveScience: Tornado Science, Facts and History
- 1113 Avg Tornadoes in the US Annually from 1982-2008 NOAA: NOAA Stats http://www.crh.noaa.gov/mkx/?n=taw-part4...
- 58.7 Avg Deaths in US Annually from 1982-2008 NOAA: NOAA Stats http://www.crh.noaa.gov/mkx/?n=taw-part4...
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Tornadoes are violently rotating and potentially damaging columns of air that touch the earth. Most tornadoes in the world occur in the United States, especially aptly named Tornado Alley, which stretches from west Texas to North Dakota.LiveScience: Tornado Science, Facts and History
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Formation
Tornadoes are formed when hot air meets cool air. As warm, humid air rises it sometimes breaks through the cool, dry air above, causing a thunder cloud. A storm develops, sucking air upward and causing winds from different directions to rotate at increasing speeds. The visible funnel cloud drops down from the sky and begins to travel across the ground. -
Enhanced Fujita Scale
- EF0 Wind Speed MPH:65-85 Damage Level: Light Enhanced Fujita Scale : Enhanced Fujita Scale
- EF1 Wind Speed MPH:86-110 Damage Level: Moderate Enhanced Fujita Scale : Enhanced Fujita Scale
- EF2 Wind Speed MPH:111-135 Damage Level: Considerable Enhanced Fujita Scale : Enhanced Fujita Scale
- EF3 Wind Speed MPH:136-165 Damage Level: Severe Enhanced Fujita Scale : Enhanced Fujita Scale
- EF4 Wind Speed MPH:166-200 Damage Level: Devastating Enhanced Fujita Scale : Enhanced Fujita Scale
- EF5 Wind Speed MPH:>200 Damage Level: Exploding Enhanced Fujita Scale : Enhanced Fujita Scale
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Tornadoes Questions
What ever happened to the residents of Picher who lost their homes in the tornado? 1 AnswerAt this time there are only about 80 residents left in the city of Picher. This was due to the government Superfund clean up effort. The government has been b... read more
Does the same forces that cause a tornado cause a hurricane? 1 Answer-----quote----- Tornadoes are formed because of instability in the atmosphere, whereas hurricanes are formed when a wet mass of air over the sea evaporates. Be... read more
What sustains a vortex in a hurricane and tornado, once it forms? 1 Answer-------quote----- The vortex of a tornado is the funnel like shape of the cloud of winds that if it goes above a certain velocity and reaches the ground then be... read more
When/Where was the most dangerous Tornado recorded in human history? 2 AnswersStrangely, the most devastating torando is NOT the most powerful one. The most destructive one was an F5 tornado, one below the highest possible classification.... read more
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On Twitter Powered by Twitter
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@ItzEmzy I've spent nearly an hour reading about tornadoes! I keep clicking on related articles again and again. I'm on waterspouts now.
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Somehow found myself on Wiki reading about tornadoes...
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Judy Garland is incredible: did you know that the day she died, there were tornadoes in kansas?
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I wanna learn Spanish just so I can read Tormentas Severas En Argentina. Cool pics, tho. http://bit.ly/84wq5E #weather #tornadoes #argentina
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Wow - watching CBC News is very similar to The Weather Channel - tornadoes and storms yesterday, and now Hurricane Bill in the East..
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