Tornado Formation and Prevalence
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Questions and Answers

What atmospheric phenomenon primarily causes tornadoes to form?

  • Low-pressure systems created by the interaction of warm and cold air (correct)
  • High-pressure belts that circulate warm air upward
  • Regular thunderstorms that develop into supercells over time
  • Stable air masses that lead to prolonged thunderstorms
  • Which region is most commonly associated with tornado formation in the United States?

  • The Great Plains due to high elevation
  • The Pacific Northwest due to ocean currents
  • The Southeast due to frequent thunderstorms
  • Tornado Alley because of its unique geography (correct)
  • How does the speed of air circulation in a tornado funnel impact its formation?

  • Increased spin speed creates a significant low-pressure area (correct)
  • Slower circulation encourages more rainfall to fall
  • Higher air speed reduces the severity of the tornado
  • Faster air speeds lead to a higher humidity content
  • What is the average duration of a typical thunderstorm compared to a supercell?

    <p>Thunderstorms last about 60 minutes and supercells can last for hours</p> Signup and view all the answers

    What combination of air masses is primarily responsible for the development of tornadoes?

    <p>Dry air from the Rockies, warm humid air from the Gulf, and cold air from the Arctic</p> Signup and view all the answers

    Study Notes

    Tornado Formation

    • Warm air rises, causing rotation due to surrounding winds, creating a funnel.
    • Faster spinning air in the funnel creates a low-pressure area which pulls in air and objects.
    • Ordinary thunderstorms last 30-60 minutes, but supercells can persist for hours.

    Tornado Prevalence

    • Tornadoes occur globally, but the US experiences the most, with roughly 1,200 annually.
    • "Tornado Alley" is a high-risk area due to specific geographic factors.
    • Dry air from the Rockies, warm/humid Gulf air, and cool Arctic air meet, creating ideal conditions for powerful storm formation and tornadoes.

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    Description

    Discover the science behind tornado formation, including how warm air and surrounding winds create rotation and funnels. Explore the geographic factors that make certain areas, like Tornado Alley in the U.S., particularly prone to these powerful storms.

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