chris,
refer to this thread for more information on cyclone Lua, but to answer your question, the next map should be out around 9-930pm WA time.
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Vincent, Townsville Nth Qld -
April 2013 Total - 48.4mm (197mm)
May 2013 Total - 32.8mm(17mm)
2013 Year to Date - 586.0mm (1132mm)