The heavy rain and strong winds will continue in the Illawarra today, resulting in more anticipated damage to homes and roads.
A number of location have received over 60 millimetres of rain over the past 24 hours and a similar amount could fall again today.
There's currently a severe weather warning for the Illawarra and South Coast for heavy rains, gale force winds and dangerous surf conditions.
Alex McFadden from the Illawarra South Coast State Emergency Service says the number of requests for assistance has now jumped to over a hundred.
Ms McFadden is warning motorists not to drive into deep water across roads.
"We had a flood rescue overnight in the Shellharbour area where teams from our Shellharbour unit assisted people trapped in their car after they had driven into floodwater," she said.
"And also overnight our Crookwell team in the southern highlands region responded to a flood rescue in regards to a person who had driven through floodwater as well."
Francois Geffroy from the Bureau of Meteorology says residents should be prepared for more rain.
"We'll probably see widespread rainfall for the rest of today somewhere in the range of around 25 to 50 mm," he said.
"Locally you could see double that, maybe another 100 millimetres here or there could accumulate throughout the day."
Janine Cullen from Endeavour Energy area says crews are working to reconnect power at locations including Kangaroo Valley and Port Kembla.
"Kangaroo Valley is probably one of the hardest hit since about 2.30am this morning," she said.
"We've got some patrols out there, the crews looking to locate the problem but in these atrocious conditions it's very difficult.
"There's about a 1,000 (properties) out there and just recently we've had about another 1,030 go out at Port Kembla."
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