Northeast NSW is set for another soaking, with a weather system wreaking havoc in northern Australia expected to cause another round of flooding.
The Bureau of Meteorology on Sunday issued a warning for the Gwydir, Peel, Namoi, Hunter, Paterson and Williams river catchments.
A slow-moving low pressure trough will deepen later on Sunday or Monday, bringing heavy rain that is expected to linger over northeast NSW.
State Emergency Service Assistant Commissioner Sean Kearns said communities in the Hunter area and Tamworth, Narrabri, Coonamble and Coonabarabran in particular need to be ready.
"As heavy rain is very likely, flash and riverine flooding is a risk we need our communities to be aware of," he said.
Flooding is already occurring at Coutts Crossing, south of Grafton on the Orara River, but river levels are falling.
A warning for the Bellinger River at Thora, southwest of Coffs Harbour, has also been issued, with minor flooding expected to begin on Monday.
Severe thunderstorms are expected to bring heavy rainfall, damaging winds, flash flooding and large hailstones to the northeast corner of NSW.
Lismore, Grafton, Tenterfield, Kyogle, Yamba and Maclean are in the firing line.
A severe weather warning has also been issued for Tamworth, Gunnedah, Narrabri, Walgett, Lightning Ridge, Scone, Coonabarabran Armidale and Maitland.
