A renewed flood warning for the Richmond and Wilson's River was issued by the Bureau of Meteorology which now predicts a peak height of 10.4 metres with major flooding at Lismore around midday today.
An evacuation centre was established at the Southern Cross University and an evacuation shuttle service has also been established.
The Bureau of Meteorology has issued a severe weather warning for flash flooding, destructive wind, abnormally high tides and damaging surf for people in the Northern Rivers, Northern Tablelands and Mid North Coast.
The SES urge people living in these areas to be vigilant in following advice from emergency services, seek appropriate shelter and limit all non essential travel in and through the north coast during this event.
There are also flood warnings current for the Tweed River, Brunswick River, Richmond and Wilsons Rivers, Clarence River, Bellinger Valley, Hastings River, Orara River and Nambucca River. Flood warnings for these areas range from minor to major levels.
A flood watch is also current for rivers from the Queensland border to Port Macquarie covering today and Saturday.
Two-hundred and fifty volunteers plus support from the RFS and NSW Fire Brigades have been working in these areas and will continue responding to requests for assistance today.
A total of 1,118 requests for assistance have been received by the SES with the majority of these coming from towns in the Richmond/Tweed region. The majority of requests have been for storm tasks including fallen trees, damage to roofs and wind related tasks.
The SES is urging people in Northern NSW to make sure they are well prepared for continuing severe weather and flooding over the next couple of days.
The SES advises that people living or working along rivers and streams keep monitoring the latest weather forecasts and warnings and be ready to evacuate if advised.
Stay in touch with neighbours and make sure they are aware of the warnings and any possible actions that need to be carried out.
Farmers and other landholders should keep a watch on streams and be prepared to move pumps, equipment and livestock to higher ground
The SES warns people should never drive, ride or walk through or allow their children to play in floodwaters, which can be very powerful, run fast and deep and contain hidden debris.
Road closure information can be found on the Road and Traffic Authority, NSW (RTA) website.
For emergency assistance in floods and storms, contact the SES on 132 500. For life-threatening emergencies call 000.
The Public Information and Inquiry Centre is open to provide information regarding displaced families, road closures, welfare assistance and all other general inquiries. They can be contacted on 1800 227 228.
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View Lismore evacuation route map
Check out the Bureau of Meteorology's live radar image.
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