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Weather Map Basics: Understanding Meteorological Conditions

Learn how to read weather maps and satellite images to assess current weather conditions and predict future weather patterns. Discover the key features such as high and low-pressure systems, air pressure, wind speed, and precipitation.

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Weather Map Basics: Understanding Meteorological Conditions

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  1. Be a weather presenter Activity 4

  2. Extreme weather images Cyclone Yasi – 3 February 2011 Category 5 cyclone Source: BOM

  3. Extreme weather images Victorian floods – 3 September 2010 Source: BOM

  4. Weather maps • Illustrates the meteorological conditions of an area at a specific time • Shows what the weather is currently doing • Shows what type of weather is expected during the hours and days ahead Source: BOM

  5. How to read a weather map • H = high pressure, L = low pressure • Isobars are labeled with a number = air pressure (hectopascals) • Air pressure is higher near the centre of a high pressure weather system • Air pressure is lower near the centre of a low pressure system • Isobars that are closely spaced mean strong winds (low pressure systems) • Isobars that are spaced far apart indicate calm weather (high pressure systems)

  6. Rainfall Text Text Calm, light winds High pressure system Strong winds Low pressure system

  7. What to do: Weather map • In pairs, choose a weather map • Save the image • Annotate and locate the following features: • High pressure system • Low pressure system • Air pressure • Strong winds • Light winds • What is the expected weather at your current location (include rainfall)?

  8. Video: Satellite images and rain radar images Text Text

  9. Satellite and rain radar images • Radar (radio detection and ranging) images: • Predict when and where precipitation will occur • Satellite images: • Predict cloud cover • Show wind speed • Show wind direction

  10. Satellite images Source: BOM

  11. What to do: Satellite images • In pairs, choose a satellite image (same date and time as before) • Read the observation made by the BOM • Note the findings about cloud cover and precipitation • What is the weather doing at your current location? Source: BOM

  12. Source: BOM

  13. Source: BOM

  14. Meteorologist presentation • Watch the following video of a Channel 9 news weather presentation • http://www.youtube.com/watch?v=xPVmTRJ1ggE • What does the presenter talk about? • How does the presenter stand? • Who does she look at when presenting the weather?

  15. What to do: Meteorologist presentation • Make your own weather presentation in pairs • Use the weather forecast map and satellite image information • Refer to the images throughout the presentation • Use a recording device to record the presentation which will be played to the class • One of the pair act and the other films for the first half, then swap

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