Sydneysiders have been warned to prepare for heavy rainfall, large hailstones and damaging winds after the Bureau of Meteorology issued a severe thunderstorm warning for the Sydney metropolitan and surrounding area.
The Bureau of Meteorology warned that, at 9:15pm, severe thunderstorms were detected on the weather radar near Parramatta, Cessnock, Bucketty and Berry.
“These thunderstorms are moving towards the east to northeast,” the BOM warning said. “They are forecast to affect Kiama, Penrith and Kurri Kurri by 9:45pm and Hornsby, Liverpool and Maitland by 10:15pm.”
At 8pm, residents in Metropolitan, Illawarra and parts of Mid North Coast, Hunter, Central Tablelands, Southern Tablelands, Northern Tablelands and South Coast Forecast Districts were warned to be prepared for the risk of flash flooding, large hailstones and damaging winds over the next several hours.
“Locations which may be affected include Penrith, Parramatta, Wollongong, Nowra, Bowral and Katoomba,” the BOM said in a statement.
The State Emergency Service advises that people should move their cars under cover or away from trees and secure any loose items around the house, yard and balcony.
People should also keep at least eight metres away from fallen power lines or objects that may be energised, such as fences. During the storm people are advised to unplug computers and appliances, avoid using the phone and stay indoors away from windows, and keep children and pets indoors.
If you are trapped by flash flooding, the SES advises you to seek refuge in the highest available place and ring 000 if you need rescue.