Bong Bong road was cut off and it was feared Dapto Public School would be forced to close for the day. At 11am, the school decided to stay open, with a skeleton staff.

A number of roads, particularly in the south of Wollongong, were also closed as the water rose.

South Coast train services were delayed for 30 minutes.

Wollongong had received 174mm of rain in 24 hours until 9am, and Nowra 112mm. Kiama had received 169mm.

Click on the Audio & Video option alongside to see our slideshow of photos from today's floods.

**************** *******

If you have any photos or stories about the flash flooding, email as at scoop@illawarramercury.com.au

< p>***********************

Bureau of Meteorology warning:

A low pressure system is expected to develop just off the Illawarra or South Coast today then move further south. A strong onshore airflow is expected to the south of the low.

Heavy rain may cause local flash flooding in the Illawarra, South Coast and eastern parts of the Southern Tablelands today, slowly contracting further south.

The Severe Weather Warning has been cancelled for the Sydney Metropolitan Area, Central Tablelands and northeastern districts although thunderstorms may produce localised heavy rain, particularly this afternoon. The situation will be monitored and if necessary a Severe Thunderstorm Warning for flash flooding will be issued.

Flood Warnings are current for the Orara, Wilsons, Bellinger, Nepean and Georges Rivers.

Emergency services advise do not enter flood water. Stay well clear of creeks, storm drains and causeways.

For emergency help in floods and storms ring the SES on 132500.