SES crews across the Illawarra are on high alert and are assisting the public with storm-related rescues after a severe weather was issued for the region.
As of Monday morning, there were 83 calls for assistance in the Illawarra, which includes the South Highlands and down to Nowra, in the last 24 hours mainly for help with fallen trees and roofs leaking.
Early on Monday morning, SES volunteers from Kiama were called to two vehicles stuck in floodwaters on Swamp Road, Jamberoo.
Flood rescue operators entered the floodwaters and accessed the vehicles. The male and female drivers were rescued, and are safe and well.
Another two men rescued from their cars stuck in floodwater at Moruya and Nowra.
Another man, aged in his 30s, was trapped in his car in floodwater at Congo Creek on Monday before police arrived and assisted him out of the car and dropped him home.
Sydney, the Illawarra and the South Coast are in for some wet and windy weather on Monday.
The Bureau of Meteorology has issued a flood watch for local and minor flooding along coastal rivers from Sydney to Moruya until Tuesday.
Heavy rainfall may lead to localised flash flooding in the Illawarra and the South Coast districts.
There is flooding on the Illawarra Highway between Princes Highway and Taylor Road at Albion Park. The highway is closed in both directions and drivers should use Tongarra Road.
Rain rate should ease from this afternoon, although steady rainfall will still continue.
A low pressure system currently just off the Illawarra coast is maturing and slow moving, while bringing damaging wind gusts and wind-driven large sea waves along the southern coast.
Damaging winds, averaging 60 to 70 km/h with peak gusts in excess of 90 km/h are expected along the coastal parts of the Illawarra and the South Coast districts.
Winds should gradually ease later this evening or early tomorrow as the low gradually weakens.
There is also the possibility of damaging winds with gusts over 90km/h strong enough to bring down trees and powerlines.
Very heavy surf is expected, which may lead to localised damage and coastal erosion with wind-driven large sea waves is also possible today, especially in the south-facing surf zones.
Beach conditions in these areas could be dangerous and people should stay well away from the surf and surf exposed areas.
For emergency help in floods and storms, call the NSW SES on 132 500, or if life-threatening call 000.
People are reminded to move vehicles under cover or away from trees and secure or put away loose items around your house, yard and balcony.
They should keep at least eight metres away from fallen power lines or objects that may be energised, such as fences.
Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
Don't drive, ride or walk through flood water; keep clear of creeks and storm drains and if you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
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