Water in Wisemans Ferry, on the outskirts of Sydney, has receded but there is still a lot underwater, including the local golf club and tennis courts.
Up to 100mm could fall in some areas at around 3pm, and if that happens the full and fast-moving rivers will rise again and some of those homes which have already been flooded once could go under again.
Thunderstorms are possible across most of eastern NSW, the Bureau of Meteorology has warned.
Suburbs along the Nepean and Hawkesbury Rivers will remain on flood watch into tomorrow, and there is a hazardous surf warning stretching from Byron in the north to Eden near the Victorian border.
In northern NSW, flood-affected communities are begging the government for more support.
There are still people and properties that are inaccessible by road, and essential supplies such as fuel, food, and medication is scarce.
In Queensland, the Mud Army 2.0 has mobilised after nearly 15,000 volunteers signed up.
Epic clean-up begins in flooded Queensland and NSW
They are currently going through a registration process and will then get on buses and be deployed throughout the region.
