Unusually hot and windy Sydney weather could spark bushfires

An unusually hot Father’s Day is in store for Sydney but there are fears strong winds could spark bushfires in and around the city.

Daytime maximums tomorrow are expected to reach 28 degrees, but winds will peak around 30 to 45km/h during the afternoon.

Fire danger warnings will be very high from the north coast to the south coast, including the greater Sydney region.

The warm winds, coming from the north, will calm in the late afternoon, before a gusty southwest wind picks up in the evening.

"(The conditions) will lead to quite a nice warm day on Sunday in Sydney,” Weatherzone senior meteorologist Jacob Cronje told 9news.com.au.

The scorching Father’s Day weather comes a day after parts of Sydney were covered in smoke from hazard reduction burns.

Up to 100 firefighters are conducting hazard-reduction burns in Wollemi National Park and the Blaxlands Ridge area on Saturday, leading to poor air quality.

Strong winds forecast for Sunday have resulted in “the majority” of planned burns being postponed for tomorrow, an RFS spokesman said.

Sydneysiders with respiratory problems were warned to take precautions in the hazy conditions created by the controlled burns outside the city.

Dr Ben Scalley, the director of NSW Health's Environmental Health Branch, said those most at risk were children, older adults and people with heart and lung conditions.

"If you have asthma you should follow your asthma action plan and take your relieving medication where necessary and if symptoms get worse, seek medical advice," he said in a statement.

The RFS insists hazard reduction burns are needed "ahead of a potentially dangerous fire season".

Not since 2002 has Australia experienced such a dry winter with high fire loads fuelling the bushfire potential, the BOM said this week.

Further hazard reduction operations are planned for across Sydney in the coming weeks.