Cyclone Ita, while downgraded from a maximum level five to a category four storm, was expected to bring fierce gales when it hits north of Cooktown, some 1,600 kilometers from Brisbane, late today.
"It's still a destructive cyclone which has very strong winds," Queensland Premier Campbell Newman said, adding some 9,000 people in and around Cooktown were "staring down quite a destructive cyclonic event".
A total of 30,000 further south were reportedly urged to evacuate.
Newman warned that homes built prior to 1985 when new building regulations were enacted may not withstand the impact of the storm, and urged residents in the path of the menacing storm to head to local cyclone shelters.
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"Anything over 80 kilometers (per hour) is dangerous," Cook Shire mayor Peter Scott told the Australian Broadcasting Corporation.
"Anything over 80K will put a piece of tin through you and chop your head off, it will lift roofs off, it will make severe damage so the best place to be is staying inside," he said.