MOST of the 1500 people cut off by floodwaters in northern NSW won't be isolated by the end of the day.About 850 people on rural properties around the Macleay and Bellinger Rivers, on the mid-north coast, were isolated this morning.
Another 425 people remained affected by floods on the far north coast, State Emergency Service spokesman Phil Campbell said.
Recent downpours have also hit the town of Goodooga, with 250 of its inhabitants surrounded by floodwaters.
But Mr Campbell said the easing rainfall had emergency services optimistic.
"We are hoping the majority of people will be out of isolation today," he said.
"River levels are still falling, but councils will need to assess the safety of the local roads and bridges before they can be reopened."
Areas around the Paroo River are bracing themselves for major flooding as a record downpour in Queensland travels downstream.
The waters are likely to isolate about 135 people in Wanaaring, west of Bourke, in the coming weeks, Mr Campbell said.
"But we have several weeks to plan and make sure people are stocked up for floodwaters," he added.
Since the flood began last week, isolating more than 2000 people over the weekend, the SES has received just over 1000 calls for assistance, with most people requesting resupply.
There have been no rescues.
The Pacific Highway has reopened at Grafton after heavy rain and localised flooding closed the highway late last week.
The Bureau of Meteorology said minor flooding along the Clarence River at Grafton and Ulmarra was expected to continue into tomorrow.
Local rainfall has caused some minor flooding along the Culgoa River at Weilmoringle and Kenebree in the central north, with some minor rural flooding along the Warrego River.
The flood threat for the Nambucca Valley has eased, while the flood warning for the Tweed River has been cancelled, the BoM said.