Cyclone Debbie was expected to cross the Queensland state coast along a sparsely populated 100-kilometer (60-miles) stretch between the towns of Ayr and Bowen early Tuesday, Australian Bureau of Meteorology forecaster Michael Paech said.
The cyclone was expected to intensify from a category two storm on Monday to a category four storm with wind gusts of up to 260 kilometers per hour (160 mph) when it crosses on to land from the Pacific Ocean, he said.
Queensland Premier Annastacia Palaszczuk urged people in the most vulnerable areas to evacuate on Monday while there remains time before conditions deteriorate.
Older homes would not withstand a category four storm, Palaszczuk said.
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"The last thing I want is elderly men or women residing in their homes with these destructive winds," she told Australian Broadcasting Corp.
People were being bused out of low-lying areas ahead of a tidal surge that could be as high as 4 meters (13 feet), Palaszczuk said. "We need to prepare for worst-case scenario, so we are evacuating people along those coastal communities as quickly as possible," she said.