New South Wales heatwave

'Most dangerous day of fire conditions in NSW history'

One small township in central New South Wales was all but destroyed by fire.

Residents in Uarbury said nine of the dozen or so homes in the town were burnt to the ground when the Sir Ivan fire near Dunedoo bore down on them yesterday.

A southerly change in the evening cooled temperatures and saw five emergency warnings downgraded to "watch and act", after a day of extreme heat and over 100 fires around the state.

The NSW Rural Fire Service (NSW RFS) downgraded the last blaze at Kains Flat about midnight.