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Understanding the Weather
Who gives you the information used in your weather charts?
Most of our information comes from the Bureau of Meteorology. The radar and satellite imagery all come from the Bureau, as do observations and most of the forecasts. A number of the forecasts that are not sourced from elswhere are prepared by The Weather Company (TWC) meteorologists. The forecast rain charts are prepared by TWC meteorologists using information sourced from the Bureau and other international weather agencies. The computer models come from the Bureau (mesoLAPS, LAPS and GASP), the US (GFS) and TWC(Mesocast).
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- What is the Southern Oscillation Index?
- 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?
- 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?
- What is the dew point?
- 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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The Australian fire danger ratings system explained
17:05 AEDT With summer almost upon us, it's worth a quick reminder about the new national fire danger ratings system which came into effect on September 1, 2022.
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