A mix of wet and windy weather is sweeping across south-east Australia this weekend with damaging winds, a flood risk and Extreme Fire Danger for Sydney.

First, let's have a look at the latest warnings.

And we do have Severe Weather Warnings current for winds above 90 km/h for parts of South Australia, Victoria and New South Wales and the ACT.

And we can see the weather system is responsible for these damaging winds, that's a strong cold front moving through south-east Australia.

Ahead of the cold front, we've got very warm and gusty west to north-westerly winds and those are shifting cooler but also very gusty west to south-westerly behind the cold front.

We've already seen winds of more than 100 km/h.

And we are expecting these damaging winds to continue for much of Saturday, really only easing up later in the day, but let's have a closer look at that now.

Starting off with South Australia, and those damaging winds will ease from later on Saturday afternoon. For Victoria, across the south-west those winds will ease from the afternoon, and then for the north-east of the state later into the evening.

For New South Wales, those winds will ease later in the day, but we could see those damaging winds redevelop across parts of the southern ranges as well as the Snowy Mountains.

So do keep across those latest warnings if you are in the area.

And that cold front is bringing quite a contrast in temperatures, we can see here on Saturday maximum temperatures across the far south-east in the mid to high teens across South Australia, Victoria and Tasmania.

But ahead of that cold front, we are seeing those very hot winds pouring down from the interior and maximum temperatures between 10 to 12°C above the September average, and the combination of hot and dry gusty winds and high temperatures is leading to elevated fire dangers.

On Saturday, we do have high fire dangers for much of eastern New South Wales, reaching extreme for Sydney, where there is a Fire Weather Warning and a total fire ban.

But the hot weather won't stick around for long, we do have cooler weather on the way. And heading into Sunday, we'll see that cooler change pushing up the coast, reaching Sydney in the middle of the day.

So much cooler day for eastern New South Wales, but remaining quite warm across the north-east of the state up into south-east Queensland.

Brisbane will peak at 33°C on Sunday before the cooler air pushes through right across southern Queensland later on Sunday and then into Monday.

So now let's have a look at the latest computer model guidance.

And we can see that on a Saturday afternoon, that cold front moving through the south-east connected to a low pressure system just to the west of Tasmania.

The cold front is bringing a band of rain as well as thunderstorms, and behind that very cold and gusty showers moving up from the south-west, we could even see thunderstorms bringing damaging winds to parts of southern Victoria, including Melbourne, and blizzards are possible across the higher peaks of the alpine ranges.

As we head into Saturday night, we'll see those showers easing from the west across South Australia and Victoria, and by late at night the showers will mostly be contracting to the ranges, as well as parts of eastern Victoria and Tasmania.

The easing trend continues into Sunday, as that cold front moves away will see showers broadly easing right across the region, but there is another weak cold front pushing out from the south-west.

We will see that moving up later on Sunday night.

That will bring another band of light showers to parts of Victoria and Tasmania overnight Sunday and into Monday.

But with the upcoming rainfall, we have issued a number of Flood Watches and we have had a Flood Watch issued for the northern Victoria as well as Tasmania, given how wet it has been there over recent days and weeks.

We still, however, do have flood warnings current in Victoria for the Murray and Loddon rivers.

And passing Tasmania, the North Esk River and we could be issuing further flood warnings over the next few days, with the flood risk continuing even after the rain eases.

So, if you are in south-east Australia, we are seeing quite a contrast in weather conditions right across the region.

Stay up to date with the latest warnings and forecasts on our app and our website and follow us on social media. And, as always, please stay safe.