The Bureau of Meteorology (BOM) is warning of minor to moderate flooding of the Gloucester and Manning Rivers with increased rainfall rates are likely to continue today (Friday March 19) as the coastal low weather trough is due to move slowly down the Mid North Coast.

According to the BOM, the intense rainfall may lead to dangerous and life-threatening flash flooding in areas of the Mid North Coast and northern Hunter districts. Roads are likely to be cut off by water, and there will be an increased risk of landslips over this period. The rainfall is expected to be heavy with strong winds along on the Hunter coastline.

NSW SES Gloucester Unit controller, Rob McNiece said it was fairly quiet overnight in the region but that warnings have been issued for potential flooding.

"There was some minor flooding in backyards and we were called out for help with that," Rob said.

"We've been in contact with the schools and the caravan park about potential flooding."

SES volunteers have suggested that people staying at the caravan park consider packing up and leaving as the Gloucester River and the channels through Billabong Park surrounding it continue to rise.

Business owners along Billabong Lane have also had a visit from the SES to advise of the potential flooding.

"The Gloucester River is already at minor flood levels," Rob said.

At the time of publication, MidCoast Council had closed the Bucketts Way at Stratford due to flooding.

The State Emergency Service advises that people should:

* Move vehicles under cover or away from trees.

* Secure or put away loose items around your house, yard and balcony.

* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.

* Trees that have been damaged by fire are likely to be more unstable and more likely to fall.

* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.

* 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

.* Be aware that run-off from rainfall in fire affected areas may behave differently and be more rapid. It may also contain debris such as ash, soil, trees and rocks.

* After bushfires, heavy rain and the loss of foliage can make the ground soft and heavy, leading to a greater chance of landslides.

* Stay vigilant and monitor conditions. Note that the landscape may have changed following bushfires.

* For emergency help in floods and storms, ring your local SES Unit on 132 500.