An emergency warning remains in place for the Ferndale Caravan Park and residents downstream of the Chichester Dam — on which an amber alert has been issued — were advised to prepare to evacuate.

Natural disaster declared in some areas

Warnings are in place for communities and campers northwest of Newcastle, downstream of the Chichester Dam.

Emergency services attend the scene of a fallen tree blocking the road near Hyde Park in Sydney, Friday. Source: AAP / Steven Saphore

“We do currently have some communities and some locations that are becoming isolated, and the warnings reflect that, and we’re very closely engaged with the local communities,” SES commissioner Michael Wassing told reporters on Saturday.

Earlier in the week, a man in his 80s was killed when a tree fell on his car overnight in the state’s central west.

Natural disaster declared

“This is a time when individuals need to think about their own risks and listen to advice.”

Hazardous surf warnings will remain in place for the Sydney and Illawarra coasts.

Tropical low likely to form in WA

While the expected cyclone will move offshore before it develops, large waves could cause minor flooding between De Grey and Exmouth.