Wet weather causes explosion of Queensland power line as flooding set to continue in south-east

Video footage has captured the explosion of a Queensland power line during the state's wet weather deluge, as several communities brace for more flooding.

Dozens in south-east Queensland remain without power with the latest downpour causing roads to collapse on the Gold Coast and several streets to remain cut off.

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Several houses have been inundated by floodwaters with two more people confirmed to have died after becoming swept into floods, bringing the state's flooding death toll to 19 since the start of January.

The Bureau of Meteorology has confirmed the rain is easing in Queensland, instead moving south through New South Wales.

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Despite easing conditions, flooding is expected to continue throughout the south-east, with more rain expected to exacerbate existing flash flooding in affected regions.

A major flood level (8.4 metres) is tonight expected in the region of Beaudesert, an hour drive south of Brisbane.

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Roads remain cut off across the Logan and Albert River catchments, with the Albert River at Wolffdene expected to reach a moderate flood level of eight metres overnight.

"Further showers and thunderstorms are possible for the catchment area for rest of Tuesday and into Wednesday, which may lead to further small river level rises," the BoM warning read.

In Dalby, north of Brisbane flooding reached major levels, peaking at 3.6 metres overnight, just short of the peak reached during the 2011 floods.

Traffic crews worked tirelessly to ensure vital routes to access supplies via the flooded Warrego Highway remained open, allowing food, fuel and cattle to reach the town's centre.

Homes and streets affected by the floodwaters remain coated in mud with more rain threatening to trigger more river rises.

Dalby business owner Dean Gibbs spent the day cleaning his mechanics shop, which has been inundated with water.

"We were pretty worried when they first said they it was going to be up to 3.8, because where we're standing now it would be up to our chests," he said.

"Because we've had so many floods in a short amount of time we've got a flood management plan with the business, so as soon as a flood is coming with enact that and put everything up."