A total fire ban has been declared across Sydney and much of NSW’s north, with warm, dry and windy conditions forecast.

The Bureau of Meteorology has issued an extreme fire danger warning for the North Coast, New England and Northern Slopes on Friday.

A severe fire danger warning is also in place for the greater Sydney region, Hunter, Far North Coast, Central Ranges, and North Western regions.

Sydneysiders will be barred from lighting any fires in the open, including incinerators and BBQs that burn wood, charcoal or heat beads. Welding, grinding, soldering or gas cutting is also banned in the open.

The bureau says very warm, windy and dry conditions forecast for Friday have created an elevated fire danger for northern NSW.

Warialda in the state’s northwest is expected to reach 34C on Friday, while the temperature is forecast to hit 33C in Wauchope and Scone is expecting 30C.

Sydney is set to reach 29C, with strong winds tipped for the afternoon.