Northern Australia is awash with intense rainfall threatening Queensland’s Gulf Country communities with more flash flooding.

Doomagee, Burketown, Normanton and other towns in the region have endured near-constant rain since mid-December.

Meteorologists are warning locally intense rainfall up to to 150mm in six hours could hit the northwest, which may lead to dangerous and life-threatening flash flooding, from Thursday.

People living in Winton, Mount Isa, Cloncurry, Julia Creek, Camooweal, Dajarra, Duchess, Mckinlay and Lawn Hill could be affected.

The Bureau of Meteorology says 24-hour rain totals of 250mm are possible “once again” following record falls on Wednesday.

“Already saturated catchments are likely to respond quickly to any heavy rainfall and exacerbate the flash flooding risk, while leading to further isolation of communities and disruption to local road networks,” the BoM said in an alert.

Burketown recorded its highest daily rainfall total in eight years when 173mm fell on Wednesday and a record 314mm drenched Century Mine near Lawn Hill.

Trucks of essential supplies have come from as far as Brisbane, Townsville and Cairns to service communities still reachable via road.

In Western Australia, the Australian Defence Force will help deliver essential supplies to people in Kununurra, which is isolated because of heavy flooding.