Rain has eased on the NSW South Coast but flood warnings remain for several regions.
Sussex Inlet residents were told to evacuate on Monday night as waters rose faster than expected due to torrential rainfall.
By Tuesday afternoon wild weather had eased and the Bureau of Meteorology cancelled a severe weather warning which had been in place for the southern coastline, Snowy Mountains and parts of the ACT.
However, the SES St Georges Basin unit warned flooding could worsen at Sussex Inlet at high-tide, around 2pm, and some residents could become isolated.
"It is expected that Badgee will become isolated for a few hours during high tide multiple times over the coming days."
ACT Emergency Services Agency responded to 124 calls for help following damaging winds over the past 24 hours.
As of 1pm Tuesday there were still five active jobs.
"Most calls for help were due to fallen trees across the territory's south including Tuggeranong and Calwell with only a few jobs reported on the northside of Canberra," an Emergency Services Agency spokesperson said.
Several parts of the South Coast recorded more than 100mm rainfall in the past 24 hours.
Moderate flood warnings are in place for Wollombi Brook at Bulga, Belubula River at Canowindra and St Georges Basin.
Minor warnings are also in place for the Deua River and Snowy River.
Wild weather led to widespread power outages on Monday night, which forced the SES St George's Basin unit to seek shelter. A landslide at Pooh Corner on the Kings Highway affected traffic for several hours.
On Monday, the unit had responded to more than 200 callouts to assist with leaking roofs, fallen trees, flooding and sandbags.
"We take this opportunity to remind our community to avoid driving in this weather and definitely not through any floodwaters, no matter how familiar the road/area is to you. Please also avoid parking under trees wherever possible," a post to its Facebook page said.
The SES Kiama unit performed several rescues throughout the day, including several motorists stuck in floodwaters and a herd of six cows.
In the Eurobodalla area power had been restored to 920 people by Tuesday afternoon.
An Essential Energy spokeswoman said trees had fallen onto powerlines in several locations and caused "significant damage" to the network.
"Crews worked throughout the night in challenging conditions to restore power to approximately 4,800 homes and business across the region," she said.
A further 4500 were without power on Tuesday afternoon in the Shoalhaven region.
Endeavour Energy said it was expected to be fixed by that night.