An average of 227 millimetres of rainfall has been recorded during the past 96 hours to 9am Wednesday over the Richmond and Wilsons River valleys. Rain has eased since Tuesday afternoon.
The Wilsons River at Lismore peaked at 5.5 metres at 1:15am today, with minor flooding.
Up to 75mm of rain has been observed during the past 48 hours to 8.30am Wednesday over the Orara River valley.
Further rainfall is forecast for the remainder of the week.
A low pressure system has developed within a trough off the far southern Queensland and northern NSW coasts.
This system is bringing rainfall, heavy at times, to far northern parts of the coast. Rainfall is expected to gradually ease during Wednesday as the system shifts northward.
This weather system has the potential to cause renewed river flooding as well as local flash flooding in the following river valleys from today onwards:
1. Tweed - minor flooding
2. Brunswick - renewed minor to moderate flooding
3. Richmond-Wilsons - renewed minor to moderate flooding
Wilsons River: Minor flooding is occurring along the Wilsons River at Lismore.
Richmond River: Minor flooding is occurring along the Richmond River at Coraki and Bungawalbyn.
The Richmond River at Coraki is expected to peak near 4.2m late Wednesday morning with minor flooding.
The Richmond River at Bungawalbyn is expected to peak near 3.9m early Wednesday afternoon with minor flooding.
Orara River: Minor flooding is predicted along the Orara River at Coutts Crossing.
The Orara River at Coutts Crossing is expected to reach around 6.5m Wednesday afternoon, with minor flooding.