Just over a week after the Bureau of Meteorology declared a third La Nina was underway, residents in New South Wales have been hit with another round of severe thunderstorms and widespread flooding.
Residents in northern NSW and south-east Queensland have been ordered to evacuate due to life-threatening floods while Sydney and Brisbane will receive significant rainfall.
Southeast Queensland and northeast NSW are again bracing for severe wet weather as a slow-moving and potentially dangerous system moves across the border.
The northern NSW town of Lismore was in tatters after floods caused by two weeks of heavy rain ripped through the region, destroying more than 2000 homes and leaving four people dead.
The Bureau of Meteorology said heavy rainfall and thunderstorms on Sunday had the potential to cause renewed river level rises to areas in NSW already hit by flooding.