Cars were underwater and roads and train lines were cut after heavy rain and severe storms caused flooding in parts of South East Queensland and the Darling Downs.

Key points: A severe storm warning was issued for parts of South East Queensland on Sunday afternoon

A severe storm warning was issued for parts of South East Queensland on Sunday afternoon Heavy rain hit parts of Brisbane, with cars going underwater and roads and train lines cut by flooding

Heavy rain hit parts of Brisbane, with cars going underwater and roads and train lines cut by flooding In the Darling Downs, Myall Creek at Dalby peaked at 3.2m Sunday morning and caused widespread flooding in the town

Trains on the Ipswich/Rosewood line were suspended between Wacol and Gailes stations in both directions due to flooding, with customers warned to expect delays.

Brisbane suburbs including Pullenvale, Kenmore, Woolloongabba, Moorooka, Holland Park, Tarragindi and Durack experienced flash flooding.

Authorities had to come to a rescue of a driver whose car was stuck at Moorooka. ( Supplied: Claire Garton )

East Brisbane resident Deslea Sneddon was one of several locals who took advantage of the brief reprieve to take a look at flooding at Hanlon Park.

"It's pretty exciting to see it so full of water and flowing so fast, we haven't seen it like this for some time," she said.

Locals visited Hanlon Park in East Brisbane to see the flooding. ( ABC News: Anna Hartley )

"I've never seen it before when it's flooded like this. It's quite extreme.

"It's great to see the rain, I love it. There does seem to be more on the way so we'll just have to keep the washing under the house."

Watch Duration: 53 seconds 53 s Watch Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Flash flooding has hit parts of Brisbane with creeks overflowing in Pullenvale, Tarragindi and Kenmore

Redlands Mayor Karen Williams said the council had opened sandbagging stations at Cleveland and Russell Island after calls from concerned residents.

"Everyone is welcoming the rain because it's been so dry, but we've had such heavy rain in short periods and, after a week of on-and-off rain, the ground is saturated," she said.

"Our residents know the drill. We still have a week of rain coming so being prepared could help avoid damage to homes."

Grandview Road at Pullenvale was cut off by floodwater. ( Supplied: Laura Greive )

The storms followed heavy rain overnight in eastern parts of the Darling Downs and Granite Belt, as well as on the Gold Coast, which recorded the highest rainfall total of 201mm up to 9am.

Flood warning issued for Dalby

The bureau has warned towns downstream of the Condamine River of flooding at river crossings following the flash-flooding at Dalby on Sunday.

Dalby flood levels reached just below peak on Sunday morning before temporarily falling.

The Condamine River rises over Park Road Pedestrian Bridge in Warwick. ( Supplied: Southern Downs Council CEO David Keenan )

Water arriving from upstream caused levels to rise again Sunday afternoon, approaching the moderate flood warning level.

Senior hydrologist Paul Birch said towns downstream will be impacted in the coming days.

"For townships downstream of Dalby like Condamine and Chinchilla where those sorts of areas are crossing its more about the big flow that's happening in the Condamine River rather than the small flow that's coming out of Myall Creek," Mr Birch said.

"There will be a number of crossings that will be affected by the floods when they come through this week.

"It's still coming out of the middle reaches of the Condamine River above where Dalby connects in so over the next several days that water will start moving downstream into those areas."

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 33 seconds 33 s Heavy rain has caused flash flooding on South and McDougall Street in Toowoomba

On Sunday, two people had to be rescued from a car in floodwaters at Greenmount, south of Toowoomba, and about 10 homes were evacuated in Jondaryan.

The Bureau of Meteorology said severe thunderstorms also created intense downpours around Warwick, with more than 80 millimetres falling in an hour.

Forecaster Peter Markworth said while some areas received more than 200mm of rain in 24 hours, no records were broken.

Residents are being urged not to drive through floodwaters. ( Supplied: Sowerbys Towing )

"We've had some decent falls across the south-east," he said.

"The Gold Coast and Stradbroke Island were the most affected and the Darling Downs saw large totals getting up to over 100mm, with Coolangatta getting up to 201mm."

Parts of Dalby are already under water after heavy rain overnight Saturday. ( Supplied: Hamish Felton-Taylor )

Rain provides drought relief for Southern Downs

Residents of Warwick have received some minor relief from drought conditions following significant rainfall overnight Saturday.

The town has received over two years of water supply following the rain, with water still flowing into the Leslie Dam which supplies water to the area.

Condamine River flooding at Churchill Drive in Warwick. ( Supplied: Southern Downs Council CEO David Keenan )

Southern Downs Regional Mayor Tracy Dobie said while residents are pleased with the rainfall, she hopes the town remains drought-declared.

"We haven't seen rain like this since ex-tropical cyclone Debbie in March 2017 and following that big downpour, our drought declaration was lifted," Ms Dobie said.

"We have been drought-declared since 2018 and our assessment for drought declaration comes up at the end of March and it's really important that our declaration remains in place.

"Even though we've had this rain and the tanks have been filled, the land is dried from three years of no rain.

"It's going take a year of average rain before our land becomes moist again."

Heavy falls hit Gold Coast

Doug Lance, who lives at Ingenia Holiday Park in Chinderah, south of the Gold Coast, said he and another 20 residents did not get much sleep as floodwaters rose at the caravan park overnight Saturday.

Water reached the doorsteps of some caravans at Chinderah, south of the Gold Coast. ( ABC News: Cathy Border )

He said it was lucky no homes were flooded and water only reached doorsteps.

"The rain just didn't stop. It just kept coming non-stop all night. It never let up," he said.

"It was restless all right, I didn't go to bed.

"I was up every half hour checking the water level.

"We could get another 100mm yet."

Despite the heavy falls, the Bureau of Meteorology said no records had been broken. ( Supplied: Hamish Felton-Taylor )

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 36 seconds 36 s Flash flooding forced the closure of Mihi Tavern in Ipswich.