NSW weather LIVE updates: Domestic flight cancellations, Sydney ...

It might not have seemed like a nice day for a white wedding, but one resourceful bride refused to be defeated by the weather.

Brianna Cooke knew days in advance that 3pm on Friday would possibly be the windiest, wettest moment to try and enter St Mary’s Cathedral for her wedding ceremony.

In a bid to shield herself from the worst of the weather, she devised a custom-made outer layer.

Her father Paul Cooke, who walked her down the aisle said: “It was a material she made to stop her from getting wet, she dropped it on the ground and stepped out of it.”

“It was, in layman’s terms, a fitted sheet,” Cooke said.

She deftly managed to remove the cover, before entering the Cathedral.

“Nobody knew, not even guests at the wedding knew,” he said.

While some might be disappointed with the poor weather for their wedding, Cooke said his daughter was philosophical about it.

“All good plans change due to the weather, you have to make the most of any occasion. You know what they say, it is good luck to rain on your wedding day.”

Let’s have a look at the latest rainfall data around Sydney to see which suburbs have experienced the biggest falls between 9am and 5pm today.

The State Emergency Services is urging people in Sydney, Wollongong, Nowra, Batemans Bay and Goulburn to stay indoors this evening, with six-hourly rainfall totals of between 50 and 90mm likely, and reaching up to 220 mm over the Illawarra escarpment.

The SES said in its warning that heavy rainfall which may lead to flash flooding is forecast for the southern parts of the Hunter to the Sydney metro, Illawarra and Central Tablelands districts today.

Six-hourly rainfall totals are likely to reach up to 130mm over the Blue Mountains and Illawarra escarpment, while 24-hour totals of 70 to 120mm are also likely, reaching up to 150mm over the Blue Mountains and Illawarra escarpment.

“Within the broad heavy rainfall area, locally intense rainfall which may lead to dangerous and life-threatening flash flooding is possible between the Blue Mountains and Narooma from this evening into Saturday morning, then extending further south later Saturday with localised six-hourly rainfall totals between 90 to 150 mm possible, reaching up to 220 mm over the Illawarra escarpment,” the SES warning said.

“Localised 24-hourly rainfall totals between 120 and 200 mm are possible, and may reach up to 300 mm over the Illawarra escarpment. Damaging easterly winds, averaging 60 to 70km/h with peak gusts of around 90 km/h are possible from this evening along the coastal strip south of and including coastal parts of the Sydney metropolitan area, as well as adjacent elevated areas, particularly above 500 metres.”

For more updates on this warning, head to the SES site here.

Our excellent team of photographers are out across NSW, capturing some great shots of the wet and wild conditions.

Wolter Peeters is at Katoomba Falls, where he captured tourists entering floodwaters to take photos. Peeters warned them of the dangers, and said they left the water soon after.

Rhett Wyman has been in Parramatta this afternoon, on the banks of the Parramatta River near the construction site of the Powerhouse Museum.

And down on Sydney Harbour, Tom McKendrick captured this dramatic shot of the city.

Just an update on the serious crash near Mudgee this afternoon, NSW Police have confirmed that six people are in hospital, including two children.

Police were called Castlereagh Highway south of Mudgee about 2pm, where officers found two cars - a ute and a four wheel drive - had collided. A crime scene has been established, and the highway remains closed.

NSW Police said in a statement:

“Two males were traveling in the utility, with a male, female and two children in the four wheel drive.

The male passenger in the ulitily, believed to be aged in his 60s, was airlifted to hospital with serious injuries.

The male driver of the utility, aged 55, was taken to Mudgee Hospital with minor injuries and for mandatory testing.

The female passenger in the four wheel drive, aged 32, was airlifted to hospital with critical injuries.

The male driver of the four wheel drive, aged 34 was airlifted to hospital with serious injuries.

Two children, aged 2 and 6, who were in the back seat of the four wheel drive, sustained minor injuries and were taken to Westmead Children’s Hospital for observation.”

Sydney has eclipsed its April average rainfall of 127mm, with 131.6mm falling in just 30 hours to 2.30pm on Friday, according to Weatherzone.

The moisture colliding over Sydney and surrounds has led to a month’s worth of rainfall falling in some locations since Thursday.

The map below shows one model’s predicted accumulated rainfall expect until 10am on Saturday, with widespread falls of 50-100mm forecast, and isolated falls of 200-300mm possible across parts of the Illawarra escarpment.

The deluge is likely to be accompanied by damaging winds tonight and into tomorrow morning, Weatherzone said.

The severe weather is expected to clear the Sydney metro area tomorrow morning, and later in the day for the Illawarra and South Coast regions.

A major flood warning has been issued for the Hawkesbury and Nepean Rivers from Saturday morning, as rainfall totals from 9am Friday hit 150mm.

In a warning issued just after 5pm, the Bureau of Meteorology said that further heavy rainfall is forecast through the catchment for the remainder of Friday and into Saturday. There is still uncertainty associated with the location and intensity of the heaviest falls.

Major flooding is possible at Menangle and North Richmond from Saturday morning, and moderate flooding is possible at Windsor and Putty Road from overnight Friday, the Bureau warned.

Minor flooding is likely along the Hawkesbury, Nepean and Colo Rivers from overnight Friday. With the forecast rainfall, further river level rises and moderate to major flooding is possible from Saturday morning along the Hawkesbury and Nepean Rivers, the Bureau said in its warning.

The situation is being closely monitored and warnings will be updated as required.

More information on this warning can be found on the Bureau’s website here.

Numerous roads across Sydney are closed this afternoon due to flooding, spelling chaos for the evening commute home.

On the Northern Beaches, Wakehurst Parkway has been closed due to flooding between the Sydney Academy Of Sport and Recreation and Oxford Falls Road, since 4.30pm.

In Sydney’s northwest at Berkshire Park, there has been flooding along St Marys Rd at Stony Creek Road since just before 3pm.

The SES has advised people to avoid any non-essential travel during and immediately after significant floods and storms as the floodwater can damage roads, make causeways impassable and people that have tried to cross flooded roads have been swept away.