Meteorologists
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Introduction to how meteorologists track and predict weather to fourth grade

Introduction to how meteorologists track and predict weather to fourth grade

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Meteorologists Meteorologists Presentation Transcript

  • How Meteorologists predict the weather
  • Air Masses and Fronts
    Air Mass: a large body of air that has about the same temperature and humidity throughout
    It can be warm or cold
    Can have a little or lot of water vapor
  • Air Masses Continued…
    Usually move west to east in the United States
  • Air Masses do not mix together!
    The line where two air masses meet is called a front.
  • Cold Front
    When a cold front moves and collides with a warm front, the warm air rises quickly and cools rapidly, causing huge storm clouds to build up.
    Rain or snow may fall.
    Thunder and lightning may also occur.
    Cold Fronts move quickly, so the storm may not last very long.
  • Warm Front
    When a warm front collides with a cold front, the warm air slides slowly upward over the cold air mas.
    As the warm air rises, it cools and forms clouds.
    Clouds are feathery and form high. Thicker clouds that form lower n the sky follow.
    A gentle rain or snow is produced.
    When the warm front passes, warm, mild weather follows.
  • Tracking and Predicting Weather
    Forecast: prediction of what the weather will be like for the next few days.
    Meteorologist: Person who studies the weather
  • What Meteorologists Track
    High and Low Temperatures
    Humidity
    Air Pressure
    Precipitation
    Air Masses
    Fronts
    Wind Speed and Direction
  • How They Track
    Computer-generated maps
    Radar Image Maps
  • National Weather Service
    A government agency that collects information about weather.
    Use advanced tools, such as satellites above the earth to collect information from all over the world