Communities in two states remain under threat from wild weather packing hailstones, heavy rain and destructive winds.

Severe thunderstorms could continue to lash parts of NSW and Queensland on Sunday, the Bureau of Meteorology says.

Damaging wind gusts, heavy rainfall or hailstones were possible, meteorologist Angus Hines said.

"From Port Macquarie northwards across the border into much of eastern and central Queensland, we could continue to see severe thunderstorms," he said.

"Where these storms do develop, they could bring some pretty significant weather impact with them."

Power outages, travel and transport delays, flash flooding, road closures and damage to cars and property are possible.

"We've seen that happen many times in the last few weeks," Mr Hines said.

Eastern Australia

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