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The NSW SES has responded to more than 115 incidents in the past 24 hours, after storms and flooding struck the north-east of the state.
SES specialists completed 27 rescues in the Northern Rivers as rivers swelled, following heavy rainfall that included 307 millimetres at Limpinwood and 200 millimetres in other parts of the region.
The Tweed, Wilsons and Richmond rivers all suffered minor to moderate flooding, with the most significant impact at Tumbulgum overnight.
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The Wilsons River at Lismore is currently below minor levels but still rising.
It may reach the minor level of 4.2 metres on Tuesday morning.
Minor flooding is still possible on the Tweed River at Chinderah coinciding with the high tide this afternoon, the SES warned.
NSW SES Assistant Commissioner Dean Storey said while the intense rainfalls experienced yesterday were not expected today, the risk was not over.
"Catchments in and around the Northern Rivers continue to see the impacts of significant rainfall over the past 24 to 48 hours, and we're expecting flood warnings to continue across the region," he said.
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"People in the Northern Rivers should heed the direction emergency services on the ground, never drive through floodwaters and avoid unnecessary travel today."
Flood rescue specialists have been deployed to the region to assist.
