Huge amounts of rain are coming down in areas surrounding the border between south-east Queensland and north-east New South Wales.

Sky News Meteorologist Rob Sharpe says Coffs Harbour is one of the worst places which has been hit by the severe weather system.

“In just a matter of three hours, we saw 180 millimetres (of rain),” Mr Sharpe said.

“This wasn’t just heavy rain or flash-flooding – we’re talking about intense rain and life-threatening flash-flooding.

“That is still a chance up around the border area.”