Firefighters went into "protection mode" on Friday night as several properties were threatened by a bushfire that continues to burn off Nerriga Road, north of Braidwood.
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Crews worked through the night to battle the blaze and bring it under control.
NSW RFS incident controller Chris Allen said the work carried out late on Friday afternoon and overnight has meant no homes are currently under threat.
However he said with a change in weather conditions expected later today this could change.
The current alert level is set to advice.
The NSW RFS currently has around 50 personnel on the fire ground, three medium helicopters completing bucketing runs and earthmoving machinery creating containment lines.
Mr Allen said the RFS were confident they could consolidate the edges of the fire today with minimum 30 metre containment lines.
Local crews are now being assisted by crews from the ACT and far south coast, and water bombing aircraft.
The ACT sent three heavy tankers, two light units and one command unit to assist their NSW counterparts.
The blaze was expected to burn for a number of days as inaccessible terrain hampered efforts to put the fire out. Mr Allen said it was likely smoke would be visible for five to six days.
Aerial support in the form of the VLAT (Very Large Air Tanker) and other water bombing helicopters were being used with retardant.
Mr Allen said the retardant runs on Friday evening had the desired effect of slowing down the fire front.
On Saturday morning, Mr Allen said there were still "pressure points" that firefighters are dealing with.
Crews are preparing for a wind change that is expected to come through around midday on Saturday.
The hot conditions, with low humidity, and a wind change from south-westerly to easterly could create increased fire behaviour Mr Allen said.
"Our priority today is consolidating our edges," he said.
"The intent is to hold its current footprint."
The fire had burnt through 150 hectares as of Friday evening, but that had increased to 270 hectares as of Saturday morning. At lunchtime on Saturday the fire was approximately 330 hectares but Mr Allen said the footprint of the fire had not changed since around midnight.
Smoke from the fire is affecting the Canberra region, Goulburn and some parts of the south coast, including Nowra and Batemans Bay.
Residents across the region are being warned to expect dangerous and severe fire conditions on Saturday.
Canberra is forecast to reach 38 degrees on Saturday, while Braidwood is tipped to reach 36 degrees.
A total fire ban is place for a number of regions including the Queanbeyan-Palerang council area and Goulburn Mulwaree.
For residents in the area of the Braidwood fire, updates are being provided to the Bungendore IGA and the Tourist Information Centre at Braidwood.