Sydney, Brisbane, Melbourne weather: East coast to be smashed with 250mm rain bomb as severe weather warning is issued
- Rain bomb predicted to smash parts of NSW
- Cooler weather set in to as the first week of winter wraps up
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A severe weather warning for heavy rainfall and flash flooding has been issued for swathes of New South Wales.
With rain forecast well into the long weekend, it may be a while before NSW - as well as Perth and some parts of Victoria - get any respite from the wet weather.
BOM meteorologist Angus Hines said significant weather will impact both the east and west coasts of Australia as we finish off the first week of winter, with some areas to be hit with a 250mm downpour.
The Bureau of Meteorology said heavy rain will hit parts of the east and west coasts of Australia on Friday (pictured: the forecast rainfall at about 11am Friday on the NSW coast)
Sydney has already seen unseasonably heavy downpours this week (pictured is Moore Park)
'The action happening in terms of rainfall is happening in New South Wales, as well as far south west of WA,' he said.
'The wet weather will kick off in both of those regions late on Thursday and it is expected to be quite wet on both edges of the country through Friday.'
By Friday, some areas in northeastern Victoria will also be experiencing heavy rainfall.
Mr Hines said more than 100mm of rainfall, if not more, was predicted to hit the Illawarra region and the south coast across the three days.
Due to the expected heavy rainfall, flood warnings have been issued for parts of the Sydney metro area, Illawarra and the central and south coasts of NSW.
Melbourne and Perth will also be wet but other capitals should avoid a drenching
'A surface trough extending from the Illawarra region into the Tasman Sea will deepen during Thursday in response to an upper low over New South Wales,' the BOM website states.
'Rainfall totals between 100 and 150mm are likely with isolated totals of 250mm possible.'
A flood watch warning has been issued for parts of Wollongong, Nowra, Bowral, Ulladulla, Taralga and Nerriga.
Rivers predicted for minor flooding include the Cooks River, Shoalhaven River, St Georges Basin, the Moruya and Deua Rivers.
Particular rivers on flood watch are the Upper Nepean River, Hawkesbury and Lower Nepean Rivers, Colo River, Georges and Woronora Rinvers for moderate flooding.
Along with rain, the Bureau has outlined cooler temperatures across most of the states.