Road signs in New South Wales were engulfed by rising floodwater on July 5.

Footage from Wisemans Ferry shows the surrounding area submerged by the floodwater.

Around 50,000 people have been displaced from Sydney as more than 150 evacuation orders and warnings are in place.

Ben Domensino, a meteorologist at Weatherzone, tweeted: "Another 73 mm over the last 24 hours brings #Sydney's running annual total up to 1769 mm. Not only is this Sydney's wettest year-to-date on record by whopping 191 mm (above 1578.3 mm from 1890), this is also ALREADY the city's 11th wettest year in records dating back to 1859."

Residents between Wilberforce and Wisemans Ferry had their power cut last night due to ongoing heavy rainfall and rising floodwaters.

The Hawkesbury suburbs of Richmond, Windsor, Sackville and Wisemans Ferry have been impacted hardest and will likely see extensive flooding in the coming 24 hours. Water levels have also been rising near Liverpool in the city’s south west.

Overnight, residents in parts of Chipping Norton, Londonderry, Wilberforce, Woronora, Cattai, Richards, Georges Hall, Moorebank, Mulgrave, McGraths Hill, Vineyard, Lansvale, Pitt Town and Wisemans Ferry were told to leave their homes by the SES.

The current system may be moving away but it’s leaving a trail of destruction in its wake and further flooding fears.

The State Emergency Service (SES) has received more than 1500 requests for help and performed nearly 120 rescues. The Australian Defence Force has made available 100 troops to help in rescue efforts and provided two helicopters to help in the search for stranded people.