ALL eyes are now on an angry, purple mapping suggesting 400mm falls of rain in the Gulf of Capentaria during the next four day.
The Bureau of Meteorology says a monsoon trough currently in the region is expected to develop quickly with an increasing risk of tropical cyclone forming later on Saturday or early Sunday.
The slow and erratic system is expected to move in a general south to south west direction later in the weekend.
BoM's mapping shows the heaviest of the rainfall missing Queensland and heading into the Northern Territory.
However, 50mm is predicted for much of the Queensland over the eight day period.
Parts of South West Queensland are expected to do better with 100mm indicated for a large area of country.
BoM said there were no significant tropical lows in the Coral Sea, and none were expected to develop during the next three days.