The worst of the fire danger in central Australia may be yet to come, with the weather bureau predicting extreme conditions this weekend.
Bushfires NT director Mick Ayre says landholders must act immediately to do what they can to protect lives and property.
He says extra crews from the Darwin area are helping relieve local firefighters in the Red Centre who are exhausted from battling blazes at Wattarka National Park, Pine Hill and Ross River.
"The conditions are going to be considerably more severe than what we have seen in the last few days," he said.
The weather bureau says the heatwave will continue to push the mercury up until at least next week.
Forecaster Ashley Patterson says Kintore, about 500 kilometres west of Alice Springs, is looking to hit 44 degrees Celsius, and Yulara and Alice Springs 45 degrees.
Winds are also expected to strengthen over the weekend.
© ABC 2013
17:16 EDT Many farmers in southern Western Australia are working around the clock to keep their stock alive after a long, dry summer.