New South Wales and eastern Victoria are bracing for destructive winds, flash flooding, and dangerous ocean conditions as a low pressure system intensifies off the east coast. The Bureau of Meteorology has warned of persistent rain, strong winds, and treacherous seas from Monday evening.
Senior meteorologist Angus Hines said rainfall totals could reach 50 to 150mm in 48 hours, with some areas exceeding 200mm. The heaviest falls are expected on the NSW Central Coast, including Sydney and the Hunter, as well as parts of the Illawarra and south coast. However, a subtle shift could send rain north to regions still recovering from record flooding in May.
Damaging wind gusts are likely from southern Queensland to eastern Victoria, with sustained winds of 40 to 70 km/h and gusts up to 125 km/h. Hines warned these winds could bring down trees, damage property, and cause power outages. Waves up to seven metres are possible, leading to coastal erosion and inundation of low-lying areas.
The NSW State Emergency Service has pre-positioned 395 volunteers in high-risk areas. Deputy commissioner Debbie Platz urged residents to clean gutters, secure loose items like trampolines and outdoor furniture, and move vehicles away from large trees. Assistant commissioner Allison Flaxman stressed the risk of flash flooding and warned drivers not to attempt crossing floodwaters.
In Sydney, Tuesday's forecast is rain and wind with a maximum of 16°C, while Melbourne expects a top of 14°C with possible showers. Wednesday will see similar conditions, with Sydney reaching 17°C and Melbourne 13°C.
