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20 How are Australian tropical cyclones ranked?




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This article is from the Storms FAQ, by Chris Landsea landsea@aoml.noaa.gov with numerous contributions by others.

20 How are Australian tropical cyclones ranked?

The Australian forecasters have developed a scale for tropical
cyclone intensity for storms in their area of responsibility - 90 to 160E
(Holland 1993). Note that the sustained winds are based upon a 10 min
averaging period instead of the USA 1 minute period.

Australian Scale         Sustained Winds (km/hr)
      1                       63-90 km/hr
      2                       91-125
      3                       126-165
      4                       166-225
      5                       > 225

There are further comments on this scale in subject D1).

 

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