More hail, flash-flooding and damaging winds are on the way for the entire New South Wales coast but the state’s week of wild weather is almost over.
NSW has been lashed by rain and wind since last Friday but one more day of miserable conditions is forecast for Saturday.
The Bureau of Meteorology on Saturday issued a warning for severe thunderstorms along the entire NSW coast and as far inland as Dubbo, with large hail, heavy rain and damaging winds expected.
An urgent warning was issued around midday for areas in Sydney’s south-west – Camden, Campbelltown, Sutherland, Liverpool, Helensburgh and Bundeena – with the storm forecast to track over waters off Stanwell Park and Thirroul by mid-afternoon.
Flash-flooding is expected all along the coast, with the bureau warning it could be life-threatening near Goulburn, Yass and Young.
Massive rainfall totals had already been recorded across the state on Saturday morning, with Ulladulla on the south coast receiving 109mm in only three hours.
A flood warning had also been issued for Wamban in the south, with the Deua River expected to swell to 4.4m on Saturday afternoon.
The low-pressure trough causing the weather will head east during Saturday, bringing showers to many areas and the risk of hail and strong winds to parts of the mid north coast and Northern Tablelands.
Queensland is also expected to be lashed by supercell thunderstorms bringing hail, torrential rain and destructive winds.
The severe thunderstorms are forecast to rapidly develop along the Great Dividing Range in the state’s south-east and push towards the coast throughout Saturday afternoon.
“Already we are seeing severe thunderstorms on the NSW-Queensland border and Scenic Rim,” meteorologist James Thompson said. “Very dangerous thunderstorms … supercell thunderstorms that could lead to giant hail and destructive wind gusts in excess of 125km/h.”
The Gold Coast, Brisbane, Sunshine Coast, Gympie, Kingaroy, Ipswich, Lockyer Valley and Scenic Rim may be affected.
People are urged to move cars undercover, secure loose outdoor items and stay indoors.
The forecast comes less than a week after two days of storms delivered a month’s worth of rain and flash-flooding to some parts of the state, including Brisbane.
Tennis ball-sized hailstones pummelled the region on Tuesday and Wednesday.
Beachmere, near Caboolture, recorded 80mm of rain in an hour and 70mm fell on yhe Upper Lockyer, west of Brisbane.
Tiaro, north of the Sunshine Coast, recorded 51mm of rain in an hour with 22mm of it falling in five minutes.
Flash-flooding affected some Brisbane areas at the height of the storms on Tuesday, which was the wettest October day in the city since 2010.