Of the fires burning right now around NSW, 25 are not yet contained, with the NSW Rural Fire Service saying their focus on Sunday will be in Cessnock and Port Stephens.

More than 600 firefighters battled blazes across NSW yesterday, with several fires in areas of Sydney. A north shore blaze at Castle Cove threatened a number of homes, and the well-reported fire at a wrecking yard in Revesby, south of Bankstown, destroyed two buildings before being brought under control by 100 firefighters and 20 fire trucks.

Winds pushed the blaze into residential streets and homes were evacuated. Bankstown-Lidcombe Hospital, just a block from the fire, had been on standby to evacuate.

In Shoal Bay, north of Newcastle, two 16-year-old boys were detained by police yesterday after a campfire they lit spread uncontrollably into neighbouring bushland.

Last night the Cessnock bushfire north-west of Newcastle was returned to emergency warning level after it escaped containment lines. The fire flared up close to homes around Kitchener, Abernathy and Kearsley, and residents were sent telephone warnings telling them to take shelter.

In response to forecasts predicting warm weather and northwesterly winds of up to 60 kilometres per hour, the first fire ban in NSW for the season was raised on the Far North Coast on Saturday morning. A southerly change moving up the coast was expected to cool temperatures overnight, however Rural Fire Services still lists the greater Sydney region as a 'very high' fire danger zone.

Echoing the words of The Rural news service, the past two days have given us a worrying reminder of the fire risk now facing us over summer.

For up to date information, head to rfs.nsw.gov.au.

With additional reporting from ABC and The Rural.