Hundreds of people have been evacuated from remote communities in the Northern Territory as flood waters exceed predictions and more heavy rain is on the way.

Territory authorities declared an emergency for communities where the upper Victoria River reached major flood levels on Wednesday.

“Earlier predictions were that the river would reach moderate flood level, however that has now been exceeded,” NT Police Commander Daniel Bacon said.

About 700 people were being relocated by air to Katherine and then driven by bus to temporary accommodation in Darwin.

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Commander Bacon said access roads had been cut, with the community of Daguragu isolated by floodwaters for two days.

“A decision has been made for the safety of the residents to evacuate,” Commander Bacon said.

Residents of Daguragu were evacuated to the community of Kalkarindji ahead of further inundation expected on Wednesday night.

The Bureau of Meteorology warned residents to expect rainfall totals of up to 140mm over a six-hour period and flash flooding.

The Bradshaw Bridge over the Victoria River in the NT. Photo: Twitter (Charlie Borschmann HeliMusterNT)

The Victoria River at Kalkarindji had risen to 15.7m on Thursday morning, above the major flood level of 14 metres.

The town, located about 550 kilometres south of Darwin, had 99mm of rain by 6am on Wednesday morning.

Authorities have urged people in the area to avoid unnecessary travel to allow for the safe evacuation to take place.

The affected communities are in the Gregory region, south-west of Katherine.

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