A severe weather warning remains current for people in the Mid North Coast and parts of the Hunter and Northern Tablelands Forecast Districts this morning.
The Bureau of Meteorology says a strong, slow-moving high pressure system south of Tasmania is extending a ridge along the NSW coast and a low pressure trough lies off the central and north coasts.
“The trough is directing very moist and unstable onshore winds bringing heavy rain and thunderstorms across the Mid North Coast and to the parts of the Hunter and Northern Tablelands districts,” BOM said.
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“This may lead to dangerous conditions in these areas.”
The weather bureau says very heavy rainfall, with rainfall rates exceeding 70 mm in one hour, is also possible with thunderstorms in these areas.
Locations which may be affected include Coffs Harbour, Port Macquarie, Taree, Kempsey, Sawtell, Dorrigo, Nelson Bay, Dungog and Yarrowitch.
Since 9am Wednesday, Tocal has recorded 124 mm of rain, Williamtown 122 mm and Maintland 109mm.
Dungog recorded 68mm in 1 hour from 4:10am to 5:10am associated with thunderstorms.
The State Emergency Service advises that people should:
* Don’t drive, ride or walk through flood water.
* Keep clear of creeks and storm drains.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* For emergency help in floods and storms, ring your local SES Unit on 132 500.