Parts of northeast NSW received close to 100mm of rain during the past 24 hours and the rain is expected to intensify further over the next few days as a low pressure system approaches. In the 24 hours to 9am this morning, high rainfall totals have been recorded around the Tweed Heads catchment area with some areas receiving nearly 100mm of rain. Coolangatta, Terania Creek and Banora all saw 97mm. The heavy rainfall has prompted a flood watch for the Tweed, Richmond and Wilsons rivers. For today, periods of rain will continue over much of the North Coast, becoming heavy at times. The heaviest rain will fall on Friday, with widespread totals of 100-200mm expected along the North Coast in just 24 hours. This may lead to localised areas of flash flooding with the potential for significant stream and river rises. Squally thunderstorms and strong winds will also become a threat on Friday, with the potential for gusts to 100km/h along the coast. As the low slowly moves southwards, heavy rain will impact the remainder of the NSW coast and adjacent areas the into the weekend. A trough will linger in the wake of the low, requiring the use of a sturdy umbrella well into next week.