Cyclone Joyce to hit NW Australia, major flooding threat as half a metre of rain forecast


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Tropical Cyclone Joyce is located in the north sea of Western Australia and over the past six hours is slowly moving southward.

Here's the latest on the storm:

  • Currently Category 1 strength (Australia Scale) with sustained winds of 83km/h, gusting over 100km/h.
  • 24hr rainfalls of above 500mm (half a metre!) have occurred in some areas of the north coast, around Broome.
  • There are huge threats of mud slides, floods, damaging winds, high waves and storm surges.
  • TC Joyce will develop more today, and it reach Category 2 strength
  • Joyce will make landfall over or near Broome and move southwestward.
  • 24hr rainfalls of 200-300mm will be possible in north part of Western Australia, and rain accumulation may locally reach near 500mm.
  • TC Joyce will gradually weaken below tropical cyclone status, but heavy rain will continue after it becomes a tropical depression.
  • The threats of heavy rain may shift into southern parts of Western Australia tomorrow.

- Maps by The Weather Company (an IBM business)

- WeatherWatch.co.nz (an official IBM business partner)