The most severe weather will be seen on Friday with widespread falls of 50mm to 100mm of rain expected to hammer down from Brisbane to the NSW South Coast.
The reason for the wild weather is the combination of an upper-level low pressure system and a coastal trough forming off the east coast.
This coastal trough will funnel tropical moisture from the north, resulting in intense rainfall.
Miriam Bradbury from the Bureau of Meteorology warned the heaviest rains and strongest winds will be seen on Friday.
‘As we go through the later part of Thursday into Friday, that’s when we’ll see the most severe weather starting to ramp up as a trough deepens off the east coast of NSW,’ she said.
‘Rainfall of this magnitude can lead to flash flooding.’
