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Syoptic Charts

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  • What is the standard unit of measurement for air pressure on a synoptic chart?
    Hectopascals.
  • What type of weather is usually associated with a low-pressure system?
    Cloudy skies, rain, and unsettled weather.
  • If a synoptic chart shows a strong cold front moving across southern Australia, what weather change might this bring?
    Sudden drop in temperature, strong winds, heavy rain/storms.
  • True or False: In the Southern Hemisphere, winds around a low-pressure system move anticlockwise.
    False.
  • What does a synoptic chart show?
    The weather conditions across a large area at a given time. E.g. Australia, 1st Jan, 2025.
  • True or False: On a synoptic chart, isobars are usually close together in a High-Pressure System.
    False.
  • What weather is most likely with a cold front? A) Steady rain B) Heavy showers/storms C) Clear skies D) Hot, dry winds
    B. Heavy showers/storms (especially when combined with a low pressure system). A drop in temperature is also common.
  • What direction do winds travel around a high-pressure system in the Southern Hemisphere?
    Anticlockwise.
  • What is one piece of information a meteorologist can predict from analysing synoptic charts?
    Possible answers: wind speed, rainfall, storms, temperature changes, cyclone risk.
  • What is the abbreviation for hectopascals, the unit used to measure air pressure on a synoptic chart?
    hPa.
  • Which feature on a weather map can make the conditions associated with a cold front more intense?
    A Low-Pressure System
  • Which feature on a synoptic chart can develop into a Tropical Cyclone?
    A Low Pressure System.
  • What do the lines on a synoptic chart represent?
    Air pressure.
  • Where is the air pressure lowest in a Low-Pressure System?
    At the centre of the system.
  • What type of rainfall is more common when a cold front passes over an area? A) Steady, continuous rain. B) Heavy showers and thunderstorms.
    B. Heavy showers and thunderstorms.
  • True or False: Close isobars indicate stronger winds.
    True.
  • Which region of Australia is most at risk of tropical cyclones? A) Southern B) Northern C) Western desert D) Central outback
    B. Northern.
  • True or False: High-pressure systems usually bring clear skies.
    True.
  • In the Southern Hemisphere, which direction does air move around a low-pressure system?
    Clockwise.
  • What type of front is shown by a blue line with triangles? A) Warm front B) Occluded front C) Cold front D) Stationary front
    C. Cold Front.
  • What are the lines on a synoptic chart called?
    Isobars.
  • Which symbol represents a warm front? A) Red line with semicircles B) Blue line with triangles C) Purple line with both D) Black dotted line
    A. Red line with semicircles
  • What does the letter H represent on a synoptic chart? A) Humidity B) High Pressure C) Hot Weather D) Heavy Rain
    High Pressure.
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