Heat Waves
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Questions and Answers

What is a characteristic of a heat wave?

  • Average weather conditions for a region
  • Unusually hot weather lasting two or more days (correct)
  • Weather that is neither hot nor cold
  • Unusually cold weather lasting several days
  • What occurs when a high-pressure system moves into an area?

  • Winds become strong and gusty
  • Air from upper levels of the atmosphere is pulled towards the ground (correct)
  • Clouds form and bring rain to the area
  • Air from the ground rises to upper levels of the atmosphere
  • Why can a heat wave last for several days or weeks?

  • Because the high-pressure system is weak
  • Because the area is near the equator
  • Because the high-pressure system is strong and prevents other weather systems from moving in (correct)
  • Because the area is near the poles
  • What is a consequence of the high-pressure system preventing clouds from entering the region?

    <p>The area becomes hotter due to the intense sunlight</p> Signup and view all the answers

    Why are heat waves considered dangerous weather?

    <p>Because they can be deadly</p> Signup and view all the answers

    Study Notes

    What is a Heat Wave?

    • A heat wave is a period of unusually hot weather lasting two or more days
    • Temperature is hotter than the average for the region

    Causes of a Heat Wave

    • Occurs when a system of high atmospheric pressure moves into an area
    • Air from upper levels of the atmosphere is pulled toward the ground, where it becomes compressed and increases in temperature
    • High concentration of pressure makes it difficult for other weather systems to move into the area

    Characteristics of a Heat Wave

    • High-pressure inhibits winds, making them faint-to-nonexistent
    • Prevents clouds from entering the region, allowing sunlight to heat up the system even more
    • Combination of these factors creates exceptionally hot temperatures

    Effects of a Heat Wave

    • Can be deadly
    • Lasting for several days or weeks makes the area hotter
    • Frequency, severity, and length of heat waves are increasing

    Safety Precautions

    • Stay out of the sun during the hottest parts of the day
    • Avoid strenuous activities
    • Keep yourself hydrated with plenty of fresh water

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    Description

    Learn about heat waves, their causes, and characteristics including the role of high atmospheric pressure, increased temperatures, and their growing frequency and severity.

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