Almost continuous rain is forecast for Brisbane and Sydney every day until Sunday.
A dangerous surf warning is in place from Fraser Island to Batemans Bay on the NSW north coast, while a flood warning has been issued for northern rivers.
On the west coast of Australia, a severe weather warning is currently in place for a massive swath of WA, with the affected area extending over 1000km.
Thousands of WA residents are without power winds of up to 125 mph knocking massive trees over power lines overnight.
Perth has been hit with up to 50mm of rain since yesterday.
However, the wind and rain are expected to ease in WA today, and tomorrow it should be 21C and sunny.
Sydney is expected to receive around 40mm of rain today, particularly around Cronulla and Collaroy, and Sydney Airport, where flights were delayed for several hours yesterday due to a lightning strike.
In Victoria, sunny conditions are expected across the state with cool temperatures.
Cities cut off by floodwaters for second time this year
