NSW bushfires can be tracked at Fires Near Me. When there is a bushfire, this is the information to monitor and act on.
In addition, there's Digital Earth Australia Hotspots which is a national bushfire monitoring system that uses satellite sensors to detect areas producing high levels of infrared radiation. NB. The satellites only pass over a given area between 2 and 4 times a day.
For a more detailed map that shows the hot spots and combines it with the Fires Near Me information see this ArcGIS webpage. Zooming in shows the detail. Magic!