The heaviest falls over saturated western Queensland are slowly beginning to pass, however the Bureau of Meteorology (BOM) is cautioning that heavy rain can still be expected in flood impacted districts such as Quilpie, Winton and Longreach today (Thursday) and Friday.

Up to Wednesday afternoon there were scarcely believable rainfall tallies throughout regions such as the Channel country, with stations in the Longreach district reporting over 600mm and over 500mm in the Quilpie region.

Many residents have reported over their annual rainfall in a week, with some heavier totals going close to doubling the annual rain, creating major flooding risk.

The wet end to the tropical rainy season is set to continue on the other side of the continent as well, with forecast heavy rain for north-west Western Australia over the next seven days.

In Queensland and the eastern Northern Territory it is expected many creeks and rivers will exceed long-term record flooding levels, with particular concerns around the Thomson and Barcoo catchments.

The Bureau of Meteorology is predicting up to another 150mm over much of south-western Queensland, with the focus shifting further east, before the rain spreads across northern NSW, which is likely to see 50-100mm for the week.

The majority of the heaviest rainfall has been in the Lake Eyre Basin, with rivers such as the Thomson and the Barcoo in central western Queensland which combine to form Coopers Creek, the Diamantina, which rises west of Winton, and the Georgina, starting west of Mt Isa.

These three largest river systems in the region all have major flood warnings, meaning significant flows are expected into Lake Eyre / Kati Thanda.

The Paroo River is the only catchment within the Murray Darling Basin that has received significant rainfall, which could see a rare event where it flows into the Darling River, which it meets near White Cliffs in NSW.

The rain started off promisingly for graziers in previously parched far western Queensland, however now with the excessive totals there are concerns about flooding and animal welfare, with potentially severe stock losses in places.

Similar to the Channel Country, the Pilbara is typically semi-arid, meaning forecast rain could represent a significant proportion of the average annual rainfall.

Further to the north, the Kimberley Coast, which has a higher average rainfall, is expecting even heavier falls in absolute terms of potentially over 200mm.