It has been the wettest November on record for parts of Queensland, but the weather bureau forecasts rain will ease after heavy falls caused flash flooding on the first weekend of summer.

Police warn road users to avoid Lamington National Park due to rock slides, as severe thunderstorm warnings issued

Streets were inundated and cars swept away from Brisbane to the Gold Coast at the weekend as everywhere north of Cairns sweltered under a heatwave warning.

A torrent of rain fell within an hour, turning roads into rivers, submerging cars and trapping drivers who tried to cross floodwaters during sudden storms.

Queenslanders should brace for a very wet and hot summer the Bureau of Meteorology has warned, as central parts of the state brace for a drenching over the next 24 hours, with isolated totals up to 300mm possible.

Parts of Brisbane have been submerged by flash flooding, with more storms predicted for south-east Queensland.