A month's worth of rain and tennis ball-sized hailstones have been dumped on southeast Queensland, leading to flash-flooding with cars fully submerged on Brisbane's streets.
Several main roads were flooded by Tuesday evening, leaving motorists stranded and banked up in 'nightmare' standstill traffic as hail hammered down on parts of the state.
Rescue crews were called to flooded roads where cars were submerged as the heavy deluge caused waters to rapidly and unexpectedly rise.
Members of the Swift Water Rescue team from the Queensland Fire and Emergency Services were seen searching flooded cars on Longlands Street at Woolloongabba in Brisbane on Tuesday afternoon
Flooded cars are seen on Longlands Street at Woolloongabba in Brisbane on Tuesday following torrential rain
Beachmere recorded 80mm of rain in an hour on Tuesday, while 70mm bucketed down on The Upper Lockyer, west of Brisbane. Pictured: Flooded cars are seen on Longlands Street at Woolloongabba in Brisbane
One stranded motorist was forced to seek refuge on the roof of his car while waiting for a Swift Water Rescue crew to free him.
In other parts of the city, drivers returned to their cars which were parked at garages and bus stops to learn they'd been flooded, while pictures show bins and random objects floating down main streets.
Several car accidents had been reported by 6.30pm, while trees were down and flash flooding blocked access to other main roads out of the state's capital.
RAQC urged Queenslanders to stay at home and said even as the rain eases, the repercussions of the storm will last well into the night.
Flooding was also reported in Gatton, east of Toowoomba, and Beachmere, near Caboolture.
'Eighty millimetres of rain in an hour is hard to get rid of,' meteorologist Rosa Hoff said. 'Very damp indeed.'
Beachmere recorded 80mm of rain in an hour on Tuesday, while 70mm bucketed down on The Upper Lockyer, west of Brisbane, the Bureau of Meteorology reported.
'That's a month's rain in the space of an hour,'