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Understanding the Weather
What is the dew point?
The dew point is a measure of how much moisture is in the atmosphere. It is the temperature to which air must be cooled for saturation to occur. It is a better measure of the amount of moisture in the air than relative humidity because it is not dependant on temperature.
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- What is the Nino3.4 Index?
- What time do the maximum and minimum temperatures refer to?
- Where do the background maps come from in your charts and how is the data turned into graphics?
- Who gives you the information used in your weather charts?
- What does wind chill mean?
- What is relative humidity?
- What is feels like temperature?
- How is the UV index measured?
- How are sunrise and sunset times measured?
- How do I set my barometer?
- How is rain measured? How is snow measured? How do you calculate the water equivalent of snow?
- What are common sources of errors in measuring precipitation?
- Why is wind not always included in the forecast?
- When you talk of a north or northerly wind, do you mean that the wind blows from the north or towards the north? Is this the geographic north of the magnetic north?
- How is a weather forecast made?
- What is the difference between a tropical cyclone, a hurricane and a typhoon?
- Do you have an explanation of the terminology you use in weather forecasts?
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Australia's tropical cyclone season in satellite images
14:34 AEST Images captured by the Himawari-9 satellite over the past six months show the entire 2023-24 Australian tropical cyclone season in all its glory from start to finish.
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