A warning has been issued to residents in parts of New South Wales and Queensland after a number of dramatic rescues were made overnight as wild weather lashed the east coast.
State Emergency Services (SES) received more than 850 calls for help and performed 34 flood rescues across NSW overnight.
Major flood warnings were issued across NSW and QLD as the states were expected to receive over a month's worth of rain in one day.
A woman and her puppy were rescued by NSW SES crews overnight after becoming trapped in flood waters at Muswellbrook (pictured)
Rescue crews were called to retrieve a woman and her puppy from a causeway in Muswellbrook in the NSW Upper Hunter Region at 11pm on Friday.
The woman had attempted to flee to safety after a deluge lashed the area, causing her home to become flooded.
SES Assistant Commissioner Dean Storey says it has been a hectic 24 hours throughout the state but particularly in the Upper Hunter.
The Bureau of Meteorology (BOM) reported some areas of the state had been hit with more than 100mm of rain on Friday
'That continues to be where our focus is today,' he told ABC TV on Saturday morning.
'Scone and Muswellbrook were affected by floodwaters over the last 24 hours and will continue to be to an extent today, with the focus shifting downstream.'
In the state's Central West occupants of two vehicles driving on Nyrang Creek Bridge had a lucky escape after it gave way from flooding.
One car plunged into the floodwaters while the second vehicle was forced to jump the collapsing bridge.
The driver was taken to Orange Hospital and remains in a stable condition, while the passenger escaped with non-life-threatening injuries.
Flood warnings remain in place over the weekend for NSW inland rivers, and the Hunter, Hawkesbury Nepean Rivers.
'This is quite a large statewide flood risk at the moment,' Mr Storey said.
'We are urging all communities and those flood prone areas to be aware of the risk and monitor the local conditions and follow the advice.'
The Bureau of Meteorology (BOM) reported some areas of the state had been hit with more than 100mm of rain on Friday.
By 9pm the downpour caused Sydney's Warragamba Dam to reach capacity and it began to spill.
There could be 'downstream impacts' from release of excess water, said WaterNSW, the body responsible for