Queenslanders have experienced some of the heaviest rain Australia has seen in months, while thousands of people on New South Wales’ south coast remain without power and evacuees in Victoria were unsure whether their homes survived another night of fires.

In Queensland’s southeast, roads have been cut off, theme parks have closed and residents have taken to travelling the flooded streets by boat after a month’s worth of rain fell in parts overnight.

More than 100 millimetres of rain fell in many locations across south-east Queensland overnight and early this morning. More severe storms were expected today and tonight.

New warnings have also been issued for severe thunderstorms developing over northern Cape York Peninsula.

A flood watch has also been issued for the Orara and Bellinger Rivers in NSW. Some parts of eastern and northern NSW got more than 200mm of rain.

Bureau of Meteorology forecaster Kimba Wong said that the thunderstorms were a “one-in-100-year event”.

“The highest total that we have recorded is 330 millimetres at Loder Creek on the Gold Coast, so some very heavy rainfall there,” Ms Wong told ABC.

“We did have an emergency warning in place for that rainfall because we had some reports of flash flooding in some locations and in some locations it was a one-in-100-year event.”

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