More than 300 NSW SES volunteers and emergency service partners were activated across Sydney to respond to over 560 storm-related incidents. Most requests involved flood rescues, inundated properties, leaking roofs and fallen trees.
NSW SES Assistant Commissioner Sean Kearns said the severe weather caused rapid flash flooding across parts of Sydney.
"The NSW SES and our emergency service partners completed more than 40 flood rescues, mostly across South West Sydney, including vehicles trapped in floodwaters along major transport routes," Assistant Commissioner Kearns said.
"The busiest suburbs included Strathfield, Greenacre, Fairfield East, Yagoona and Chester Hill."
Assistant Commissioner Kearns said flash flooding can occur quickly and without warning.
"Flash flooding is extremely dangerous and conditions can change rapidly. Never drive, ride or walk through floodwater. If you come across a flooded road, stop, turn around and find an alternative route," he said.
While conditions eased this morning, debris and water remain on some roads and commuters are urged to take care.
Further rainfall is forecast to continue today across Sydney and surrounding districts, including the Central Coast and Hunter regions, with additional heavy rainfall possible before conditions ease by Saturday morning.
Residents are encouraged to monitor warnings, review emergency plans and stay up to date via the Hazards Near Me app, local radio and the NSW SES website.
For emergency assistance during floods and storms call NSW SES on 132 500. In a life-threatening emergency, call Triple Zero (000).