Date: 2021-12-03 07:20:22
Severe thunderstorm warnings were issued late on Friday afternoon for parts of western Sydney, with the storm cell moving north into the Hunter region with the potential for large hail.
Hail landed at Agnes Banks, near Castlereagh in the north-west, and a separate system hit motorists on the Hume Highway at Pheasants Nest in the Macarthur region, to the south.
The Bureau of Meteorology warned that severe thunderstorms were detected on the radar at 4.05pm near Penrith in Sydney’s west and Springwood in the Blue Mountains.
It warned “very dangerous thunderstorms”, including possible giant hailstones, were forecast to affect Richmond, Windsor and Riverstone before moving over Colo, Wilberforce and the Wollemi National Park, north of Kurrajong.
In an update, severe thunderstorms were detected near Spencer and Maroota at 5.05pm, moving towards the north-east, where they were forecast to affect Calga, Gosford and Mangrove Mountain by 5.35pm.
“A trough moving north along the coast is leading to thunderstorm development on the ranges inland from the coast,” the bureau said.
“Severe thunderstorms are likely to produce damaging winds, large hailstones and heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Gosford, Cessnock, Maitland, Penrith, Springwood and Bilpin.”
By 5.30pm, severe thunderstorm warnings had been cancelled for the Illawarra, Gosford/Wyong and Sydney metropolitan areas.