A woman has drowned after her car was swept away while leaving a fast food chain drive-through in Brisbane's north, the fourth person to die in Queensland floodwaters in three weeks.
Emergency services on Friday urged motorists to stop crossing flooded roads following the 44-year-old woman's death at Aspley.
The woman was travelling with a 52-year-old Geebung man when their vehicle was swept into a creek as they left a partially flooded fast food chain car park near Lucan Avenue at about 8pm on Thursday.
The man - who was the driver - was able to escape the vehicle and was found by emergency services a short time later.
The car was recovered at around 11.15pm and the woman was pronounced dead at the scene.
"Another tragedy on so many levels occurred last night. Our thoughts are with all the people who knew the lady who lost her life," Minister for Fire and Emergency Services Mark Ryan said on Friday.
"It will be a very sad Christmas for their family and friends."
The tragedy comes after a 75-year-old woman from Taringa died when her car became submerged in floodwaters in Brisbane's west on Wednesday.
Queensland Police Assistant Commissioner Ben Marcus pleaded with motorists not to cross floodwaters, as more heavy showers are set to inundate the state, including already flood-hit areas.
"That is four separate incidents in the last three weeks. Four honest, hard working people," he said.
"This is real. This is Queensland in storm season. We get flash flooding for a reason.
"Storms come and go quickly, flash flooding occurs quickly, creeks go up quickly and they go down quickly.
"What we are asking you to do is wait. Just wait. The question you have to ask yourself is 'do I really need to be driving around in the middle of a thunderstorm?
"If you see a flooded road, stop, turn around, drive away."
The warning comes after the Bureau of Meteorology forecast more severe thunderstorms for the state's southeast, particularly the Sunshine Coast, Capricornia and Wide Bay and Burnett districts.
Heavy rain is also set to hit areas that are already experiencing major flooding along the Dawson, Weir, Condamine and Balonne Rivers in central and southern Queensland.
Along Dawson River in central Queensland, there is major flooding at Baralaba - peaking at 11.34m - with falls of up to 50mm in 24 hours by 9am Friday with showers not clearing until the weekend.
Along the Condamine River on the Western Downs, there is major flooding between Chinchilla Weir and the Condamine township (at 10.7m).
Floodwaters are rising at the nearby Balonne River at Warkon (peaking at 11.50m) and Surat (12.10m) with water levels expected to peak at St George and Dirranbandi on the weekend.
Flooding is easing along the Macintyre River on border towns Goondiwindi and Boggabilla and downstream off the Weir River at Talwood after falls of up to 30mm.