Severe thunderstorms have swept across Queensland's southeast, with flash-flooding carrying cars down Brisbane roads.

The storms struck at about noon (AEST) today, producing thousands of lightning strikes, strong winds and heavy rain.

Strathpine, Brisbane and Logan are among the hardest hit areas.

The Bureau of Meteorology (BoM) said the Brisbane CBD received more than 91mm of rain since 10am (AEST), leaving some of the city's roads under water and bringing traffic to a standstill. reported the city received its heaviest 10-minute downpour of rain in at least eight years, receiving 25mm just after 11.40am (AEST).

In the Brisbane westside suburb of Milton, localised flooding carried cars down streets.

One local Milton resident, Tom Goldman, tried to drive his car through the severely flooded Haig Road, only to have the engine stall.

Despite the damage to his vehicle, he said he had no regrets running the gauntlet through the one-metre-deep water.

"Because feeling the sensation of floating in car down a street is something that everyone has to experience at least once in their life," he said.

Further down Haig Road, a commercial artist - who wanted to be known only as Raj - said the water had risen over his front step and damaged his carpet.

"Come in, please take pictures, it may even help me with my insurance claim," he said.

Other vehicles at Woolloongabba and East Brisbane have also been swamped.

Energex reports more than 60,000 homes and businesses between the Sunshine Coast and Beenleigh are currently being affected by power outages. They have also recorded tens of thousands of lightning strikes.

People have been warned not to swim in flooded creeks or drive their cars through flood waters.

The Department of Community Safety says while they have not yet had to make any rescues, State Emergency Service (SES) volunteers are currently responding to 47 jobs, including roof leaks and minor flooding.

The wild weather has shut down a rail line in Brisbane and passengers have been told to expect long delays.

Alternative transport is being arranged between Dutton Park and Yeerongpilly stations, and 90-minute delays are expected, Translink says.

Rail and bus passengers across the commuter network have also been warned to expect delays of up to 45 minutes as services return to normal following heavy rain that caused flash flooding in parts of Brisbane.

Meanwhile the weather bureau is warning that severe thunderstorms are on the way for areas between Beerburrum on the Sunshine Coast and Tallebudgera on the Gold Coast this afternoon.

Very heavy rainfall and flash flooding are likely.

The storms follow others yesterday that cut power to more than 20,000 homes and businesses across the southeast.