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The bush fire is burning to the north east of the township of Harrington.
Winds are expected to increase throughout the day which may put pressure on containment lines.
No properties are at threat, the Rural Fire Service said on Thursday morning.
Weather conditions have eased and there is no longer any direct threat to properties.
Overnight firefighters will be conducting backburning operations in an attempt to contain the fire.
Local roads may be closed or affected by smoke at times overnight. Authorities have asked motorists to slow down and drive to conditions.
Crowdy Bay Road is closed in both directions
The bush fire is burning near properties at the north of Harrington.
Numerous fire trucks are working between homes and the fire as the fire moves closer to home.
The fire is being fanned by strong north-easterly winds in a south westerly towards Harrington.
People in the area of Harrington should be on alert for burning embers.
Rural Fire Service authorities have warned that spot fires may start ahead of the main fire front.
"Be ready to put out any spot fires which may start in or around your property," an RFS spokesman said.
"You may see smoke and flames increase as the fire moves closer. Follow your Bush Fire Survival Plan. Ensure you know what you will do if the fire impacts on your property."
Firefighters are working in the Harrington area.
Emergency alert telephone messages has been sent to mobile and fixed line telephones in the area.
If your life is at risk, call Triple Zero (000) immediately.
Continue to stay up to date with the bush fire situation by checking the RFS website, listening to your local radio station or by calling the NSW RFS Bush Fire Information Line on 1800 679 737.
For information on road closures, check www.livetraffic.com. Roads may be closed without warning.