Eyes turn to skies as early monsoon trough formsFriday November 22, 2013 - 12:36 EDT
The weather bureau says there is a high possibility of a cyclone forming in the Top End over the weekend.
Forecasters say a tropical low is developing off the north-west Australian coast.
The system is tracking first toward the Kimberley coast of Western Australia and is expected to reach the west coast of the Northern Territory in the next few days.
Forecaster Graeme King says it is unusual to see this type of weather system so early in the wet season.
"We have only ever had three cyclones before in November and normally our monsoon troughs, when most cyclones form are not expected ... until mid-December," he said.
Mr King says the WA Bureau of Meteorology may issue a weather watch for the Kimberley area over the next 24 hours.
© ABC 2013
More breaking news
About 13,000 properties remain without power in Perth and Western Australia's south-west after damaging winds brought down trees and debris, with a severe weather warning still in place for a large part of the state.
The South Australian towns of Virginia and Port Wakefield are under threat from floodwaters as the Gawler and Wakefield rivers burst their banks, with warnings more rain is on the way.
An evacuation order has been issued for low-lying areas of Condobolin in the central west of New South Wales, as flood peaks in the Lachlan River move downstream.