Sydneysiders have been told to be vigiliant as the city is set to face its own extreme fire danger with temperatures up to 35 degrees coupled with strong winds forecast.
The Rural Fire Service (RFS) and Bureau of Meteorology (BoM) have warned that communities near bushland with plenty of fire fuel are at the greatest risk, however all of Sydney will feel the heat.
Sydney is forecast to wake to cloud cover on Wednesday morning before very hot and windy conditions set in from 10am.
BoM forecaster Deryn Griffiths said temperatures between 33-35 degrees and low humidity would be felt across the whole city.
"Locally the weather can vary but as far as we can see at the moment, we can't pick one area over the other," she told AAP.
Ms Griffiths said the combination of local winds and fuel - dry bushland and debris - would contribute to risk in some areas.
North-westerly winds of up to 45km/h are also expected for Sydney.
RFS Commissioner Shane Fitzsimmons said the second highest fire danger rating had been issued for the area.
"It's (Sydney) facing an extreme fire danger rating tomorrow," he said on Tuesday night.
"On days like tomorrow, minutes matter."We need the community to remain vigilant we need people to report fires to triple zero particularly if they don't see firefighters in attendance."