Millions of Australians are preparing for severe weather as recovery efforts commence in NSW after devastating floods. Warnings for damaging winds and hazardous conditions span southeast Australia, with gusts potentially reaching 120km/h, and conditions expected to peak on Monday. Additionally, flood watches are in effect in northern regions, including parts of the Northern Territory, while the southeast faces significant impacts from weak trees, driving hazards, and potential blizzard-like conditions in the Alps.