Australia's east coast is under threat with severe thunderstorms expected across large parts of NSW and ACT today and possible flash flooding on its way for Queensland.
A heavy deluge of rain and damaging winds are expected across the east coast of NSW with wild weather warnings extending inland to Goulburn and Orange in the central west from Thursday night.
The ACT is also forecast to expect similar wet La Niña conditions with south-east Queensland being battered by rain and lightning since the early hours on Thursday morning.
Melbourne metro and areas across Victoria are experiencing some wet weather conditions as the low pressure system brings rain for the rest of the week.
The Bureau of Meteorology's David Wilke says thunderstorms forming yesterday will turn into full-blown monster storms on Thursday.
Wild weather is battering Brisbane (pictured) and areas of QLD's south-east, with similar conditions expected for more of Australia's east coast
Torrential rain and wild wind are hitting areas of QLD, with 50mm of rain recorded in just one hour on the Darling Downs
Peak hour traffic crawls through Brisbane as rain batters the city (pictured)
Rain and lightning has been pelting Brisbane (pictured) since the early hours of Thursday morning with severe thunderstorm and flash flooding warnings put in place for areas on south-east QLD
A cold front hitting the east coast is causing the miserable conditions in Brisbane (pictured) and is set to move the wild weather to NSW and VIC
'We're going to see a cold front moving through NSW ... it's going to bring pretty widespread areas of showers and storms and some reasonable rain through the southern part of the state,' he told AAP on Wednesday.
The rain will extend to more eastern parts of the region into Thursday night, with Sydney and Canberra experiencing the worst of it.
Meteorologist Jonathan Howe said the wild weather is due to a slow moving cold front that is dragging a lot of moisture and allowing the instability to 'fester'.
'A low-pressure system has brought a lot of rain to the Melbourne Metro and across Victoria and SA and gets down to Tasmania. We are seeing a lot of flood watches out later today,' he told Today on Thursday morning.
Severe thunderstorms are forecast for NSW and ACT with similar weather expected for the coastal areas (pictured: storms building over Melbourne with the city expecting to see showers throughout the week)
Meteorologist Jonathan Howe says conditions in QLD could see tornadoes forming with tennis ball-sized hail likely in south-east QLD and areas in NSW
Damaging winds, heavy rain, and large hail and flash flooding is possible in some locations around the east coast (pictured: traffic braving the weather in Brisbane on Thursday morning)
Meteorologists recommend keeping an eye out for weather warnings throughout the week as the wild weather is set to continue (pictured: pedestrians cover up from the rain lashing Brisbane)
A severe thunderstorm warning is in place for Brisbane (pictured) and Moreton Bay
He also commented that conditions were making it possible for tornadoes to form in south-east Queensland.
'Today, the ingredients for a tornado really do line up. We cannot predict where they are going to form but the environment is there to see these super events and the advice is keep an eye on any of the advice is keep an eye on any of the
