Murwillumbah

There have been two flood-related deaths in NSW

A woman was reported missing at Burringbar, south of Murwillumbah in NSW, overnight on Thursday and police said a body was found on a flood-affected property about 8:00am on Friday.

Between 500 and 740 millimetres of rain was recorded in NSW's Tweed River valley in the 24 hours to 2:00am on Friday, after which it began to ease.

The main areas affected are around Murwillumbah, where residents were forced to seek refuge in ceiling cavities and on the roofs of their homes, and in Lismore, where the Wilsons River has reached 11.6 metres.

Flood records have broken in the town and there are a significant number of people needing flood rescue in the area.

The State Emergency Service (SES) has managed to get rescue planes in the air, but winds of between 50 and 90 kilometres per hour may be hindering the attempts.

The SES has made 220 rescues and is facing 100 outstanding rescues in the region and has warned people to cooperate and stay out of floodwaters, which are at "unprecedented" levels across the north coast.