NSW SES and RFS have conducted 2 flood rescues this morning in the Shoalhaven.
One incident was at South Nowra where two people were rescued from their car.
People were rescued from a home at Wrights Beach at St Georges Basin.
A Watch and Act do not enter flood waters has been issued for Lake Conjola.
Water levels on the lake have risen overnight due to severe weather. This has caused low lying areas of Lake Conjola to be impacted by floodwaters.
The SES is advising thunderstorm activity will escalate across much of the state today.
The main risk associated with these storms will be localised heavy falls, large hail, and damaging wind gusts.
Widespread rainfall has fallen across parts of the NSW South Coast in the early hours of today, with severe thunderstorms and heavy rain expected to continue into tomorrow.
This rainfall may cause Riverine and flash flooding along rivers in parts of Shoalhaven Coast, South Coastal Rivers.
Localised heavy rainfall of up to 200mm over a 24hr period is possible on the south coast today.
Widespread totals of 20 – 40mm across much of NSW is likely.
NSW SES is urging people to assess conditions before traveling on the roads, not to walk, ride or drive through flood waters and to heed any warnings.