Residents along Wollombi Brook have been told to move to higher ground as the State Emergency Service issued an evacuation order Tuesday evening.
Residents of Wollombi, Congewai, Paynes Crossing, Laguna, Bucketty, Ellalong and Millfield have been told to move to higher ground, the SES said in a warning issued just before 5pm.
"Storm and flood impact have interrupted essential services such as electricity, phones, internet, water and sewerage," the service advised.