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Fujita Tornado Scale
This scale, usually referred to as the F-Scale, classifies tornadoes based on the damage caused. It was developed in 1971 by Dr. Theodore Fujita of the University of Chicago.
| Category | Speed | Frequency | Effects |
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F-0
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40-72 mph
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29%
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Minimal: Some damage to chimneys, TV antennas, roof shingles, trees & windows, chimney damage, tree branches broken.
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F-1
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73-112 mph
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40%
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Moderate: Automobiles overturned, carports destroyed, trees uprooted, mobile homes pushed off foundation or overturned.
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F-2
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113-157 mph
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24%
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Major: Roofs blown off homes, sheds and outbuildings demolished, mobile homes overturned, considerable damage, mobile homes demolished, trees uprooted.
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F-3
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158-205 mph
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6%
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Severe: Exterior walls and roofs blown off homes. Metal buildings collapsed or are severely damaged. Forests and farmland flattened, roofs and walls torn down, trains overturned, cars thrown.
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F-4
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207-260 mph
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2%
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Devastating: Few walls (if any) standing in well-built homes. Large steel and concrete missiles thrown far distances. Well-constructed walls leveled.
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F-45
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261-318 mph
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Less than 1%
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Incredible: Homes leveled iwth all debris removed. Schools, motels, and other structures have considerable damage with exterior walls and roofs gone. Top stories demolished; homes lifted off foundation and carried considerable distances; autos thrown as far as 100 meters.
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Here are some informative Internet sites that will provide you with further helpful information on hurricanes:
1. National Oceanic & Atmospheric Administration (NOAA) - Outlook - Tornadoes: Tornado facts, safety information, photo gallery, & much more!
2. The Online Tornado FAQ: Here you'll find answers to all your tornado questions.
3. Storm Chase Online!: Learn all about storm chasing; read articles; view storm images; & more!
4. Kansas Storm Chasers: Keep up to date on Kansas tornadoes; safety information; fun tornado project area for kids!
5. Tornado Guard: This is a weather shelter that's designed to be "placed within the home's slab foundation, providing an easily accessible, clean, "safety zone" below ground as is recommended by weather emergency experts".
Here are some informative books to read that deal with tornadoes. Use Amazon.com's secure server to order:
 Tornado: Nature in Action : - Stephen Kramer. Learn all about tornadoes; includes safety information. Buy it NOW through Amazon.com's secure server!
Click HERE or on the image of the books to give this gift to yourself or someone else!
Eye of the Storm: Inside the World's Deadliest Hurricanes, Tornadoes, and Blizzards: - Jeffrey P. Rosenfeld Gain more knowledge about the strong forces behind mother nature, and the scientific studies that are being done. Buy it NOW through Amazon.com's secure server!
Click HERE or on the image of the books to give this gift to yourself or someone else!
Tornadoes! (The Weather Channel Series): - Sally Rose. This book from Cable TV's Weather Channel "examines the nature and origins of tornadoes, where they occur, and how to prepare for one, along with looking at particularly bad ones from the past". Buy it now through Amazon.com's secure server!
Click HERE or on the image of the books to give this gift to yourself or someone else!
The safety information contained on these pages is provided as a courtesy to My ParenTime's visitors. My ParenTime makes no representations or guarantees concerning the effectiveness of such information. In no event shall My ParenTime be held liable for any failure of such safety information.
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