A downpour has hammered Bundaberg and flash flooding is affecting the area, with 200 millimetres of rain falling in six hours.
There are reports of localised flooding, with some motorists in the city stranded by floodwater.
About 5,000 properties have also lost power, according to energy supplier Ergon.
In a statement, Queensland Fire and Emergency Services said the SES had responded to 90 callouts by 4:45pm, for fallen powerlines, roof damage and minor house flooding.
“Motorists are advised that some roads are flooded and to drive with caution and to conditions,” QFES said.
“Never drive, walk or ride through floodwaters and keep clear of creeks and storm drains.”
A severe weather warning has been issued for parts of the Capricornia, Wide Bay and Burnett and Southeast Coast forecast districts.
In Bundaberg, rain had fallen steadily since about 10:30am, but a huge downpour occurred after lunch with 90mm falling in the space of 90 minutes.
Bureau of Meteorology (BOM) forecaster Michelle Berry said the rain was expected to head south towards Gympie and the Sunshine Coast.
“We will see this focus for heavy rain though eventually shifting offshore into the coral sea through Tuesday, and then we’ll be left with showers and storms continuing over the eastern half of the state especially through inland parts,” Ms Berry said.
The BOM said Bundaberg had been hit with 200mm, while Cordalba north of Childers recorded 146mm.
Earlier, Central Queensland received its heaviest rain since Cyclone Debbie in March as a trough moved across the state.