Australia weather: Heavy rain and flooding: Sydney, Melbourne, Brisbane, Perth, Adelaide

Almost every part of Australia will experience rainfall over the next 10 days as a massive rain bomb engulfs the country.

Extremely heavy falls, hailstones, thunderstorms and flooding is expected for large parts of the east coast, particularly southern New South Wales and Victoria.

A large low pressure system is set to collide with a cold trough – sparking significant precipitation through Australia’s states and territories.

Almost every part of Australia will experience rainfall over the next 10 days as a massive rain bomb engulfs the country

Heavy rain, thunderstorms and flooding is expected for large regions of the east coast, particularly southern New South Wales and Victoria

Heavy rain, thunderstorms and flooding is expected for large regions of the east coast, particularly southern New South Wales and Victoria

The heaviest rain is expected to be see in northern Victoria and southern NSW – areas which are already experiencing flooding in the past few days.

Some catchments have already seen more than 200 per cent of annual rainfalls in just the last month. 

Forecasters are warning three states could see severe thunderstorms over the next three days. 

Moderate to major flooding is set to continue through NSW this week, with the worst of the weather expected on Tuesday and Wednesday.

The state’s east will experience thunderstorms on Tuesday, with strong winds and even hail predicted. 

Heavy rainfall is predicted for NSW's southern regions on Tuesday and Wednesday

Heavy rainfall is predicted for NSW’s southern regions on Tuesday and Wednesday

The state's east will experience thunderstorms on Tuesday, with strong winds and even hail predicted

The state’s east will experience thunderstorms on Tuesday, with strong winds and even hail predicted

The rain is expected to ease on Thursday, but further rain is expected on the weekend.

Weatherzone say almost the entire country will see rainfall over the next 10 days as the huge system sweeps through.

Another low pressure system is predicted to hit the Kimberly and Pilbara areas of Western Australia early next week – which could bring unseasonable rain.

Broome has seen no rainfall so far through September, but could see significant precipitation to start October. 

A low-pressure system that brought torrential rain and flooded dozens of river systems in inland NSW and the state’s north in the latter part of the week is moving offshore, although forecasters say the situation is still ‘evolving’.

Early on Saturday, flood warnings remained active for 28 river systems from the inland west, through to the Northern Rivers and the Mid North Coast.

Emergency services used a boat to rescue four people from the Hilux who were found clinging to trees, including a 37-year-old man, a 28-year-old woman, and a young boy and girl. However, the five-year-old boy became trapped in the car before it submerged and was swept away

In the town of Gunnedah, home to 9000 people, major flooding was continuing after the Namoi River peaked at 8.24 metres on Saturday morning. The water is expected to remain high going into Sunday.

At Wee Waa, just 120km northwest, floodwaters are still slowly falling but could remain above major flood levels into next week.

The cotton town is protected by an 8km levee but Narrabri Shire mayor Ron Campbell told AAP the rainfall had destroyed local roads.

‘If we get substantial rain across the summer, we could have a record flood for sure – probably something not seen since the 1970s,’ Mr Campbell said.

The wet weather has caused anxiety in the Tumbulgum community on the Tweed River after its burst its banks and flooded paddocks on Friday.

Many locals remained hyper-vigilant after major flooding hit the region earlier this year, Husk Distillers co-owner Harriet Messenger told AAP.

‘Everybody in the region is always very on edge – particularly so close to another major event,’ she said.   

A five-year-old boy died after becoming trapped in a car last week that was swept away by floodwaters in central western NSW

A five-year-old boy died after becoming trapped in a car last week that was swept away by floodwaters in central western NSW

A five-year-old boy died after becoming trapped in a car that was swept away by floodwaters in central western NSW.

Two vehicles, including a Toyota Hilux, became trapped in floodwaters on McGrane Way at Tullamore, northwest of Parkes, on Friday night.

Emergency services used a boat to rescue four people from the Hilux who were found clinging to trees, including a 37-year-old man, a 28-year-old woman, and a young boy and girl.

However, the five-year-old boy became trapped in the car before it submerged and was swept away.

NSW Police officers started searching on Saturday for the Hilux and at about 3.20pm the boy’s body was located in the still-submerged car by police divers.

His family were taken to Dubbo Base Hospital for observation. The occupants of the second vehicle weren’t injured.

The Hilux has since been retrieved and police are investigating ahead of a report being prepared for the coroner. 

A large low pressure system is set to collide with a cold trough - sparking significant precipitation through Australia's states and territories

A large low pressure system is set to collide with a cold trough – sparking significant precipitation through Australia’s states and territories

THREE-DAY FORECAST 

Sydney

Tuesday, Max 20, scattered thunderstorms

Wednesday – Max 20, thunderstorms

Thursday – Max 17, rain

Melbourne

Tuesday – Max 17, rain

Wednesday – Max 15, showers

Thursday – Max 16, partly cloudy

Brisbane

Tuesday – Max 26, scattered thunderstorms

Wednesday – Max 25, thunderstorms

Thursday – Max 25, partly cloudy

Adelaide

Tuesday – Max 14, showers

Wednesday – Max 16, partly cloudy

Thursday – Max 18, partly cloudy

Perth

Tuesday – Max 23, sunny

Wednesday – Max 25, partly cloudy

Thursday – Max 28, sunny

Darwin

Tuesday – Max 33, mostly cloudy

Wednesday – Max 32, thunderstorm

Thursday – Max 32, thunderstorm

Canberra

Tuesday – Max 17, thunderstorm

Wednesday – Max 16, showers

Thursday – Max 17, partly cloudy

Hobart

Tuesday – Max 16, partly cloudy

Wednesday – Max 13, scattered showers

Thursday – Max 10, showers 

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