Huge Storms, Flash Flooding Across East Coast After Massive Downpour

Queensland is mopping up after 300mm of torrential rain bucketed down across the southeast of the state overnight.

The downpour triggered the closure of major highways and theme parks, and swamped dozens of vehicles.

Two people had to be rescued after attempting to drive through floodwaters on the Gold Coast, while another two were taken to hospital after a tree fell on their car in Currumbin, The Gold Coast Bulletin reports.

The Gold Coast copped the brunt of the rain with three times the monthly rainfall falling on the region in just 12 hours.

Loders Creek was the wettest place, seeing more than 325mm of rain, while 200mm dropped on the Hinterland.

The M1 remains closed at Helensvale as emergency crews try to pump floodwater away. Heavy trucks are being allowed to pass through, but cars continue to be diverted.

It started to reopen as of 10am.

Major parks such as Warner Bros Movie World, Dreamworld and Whitewater World Theme Park have closed to the public, saying the safety of guests was a major concern.

The State Emergency Service (SES) has been called to more than 150 jobs across the Gold Coast in the past 12 hours.

The slow-moving cell is now impacting northern NSW as the storm cell moves offshore, but more rain has been forecast for the region across the weekend.

"There is an 80 per cent chance of more storms and shower activity, but nothing to the extent that we have seen overnight," a Bureau of Meteorology spokesman said.

Queensland Fire and Emergency has warned people not to attempt to travel across flooded roads, citing unpredictable conditions and fast-moving water.

Gold Coast City Council also issued a statement which said the heavy rain and severe weather situation is now easing.

“Water within the City of Gold Coast catchment areas is receding and does not pose a threat to the community. Dam levels will continue to be monitored," the statement said.

“Some roads have been experiencing flooding, however roads are now clearing. There are some instances of minor damage to infrastructure across the city which is being attended to by city maintenance crews and key partners.”

With AAP