Three states have been slapped with severe weather warnings as "dangerous winds" developing ahead of a blustery cold front.

Destructive winds of up to 125km/h could lash parts of Tasmania this morning as a cold front crosses Australia's southern states.

The Bureau of Meteorology have also issued severe weather warnings covering eastern Victoria, and southeast NSW, including the Central Tablelands and Illawarra and Tasmania.

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There was a possibility of "destructive wind gusts" of up to 100-125km/h for Tasmania with eastern Victoria expected to see peak gusts in excess of 90km/h.

The strong gusts are due to a high-pressure system passing over southern Western Australia, as a cold front also passes over the east of Tasmania.

Tasmania has been warned of locally destructive wind gusts for the Western Tiers from mid morning.

Hobart can also expect a morning shower, with a top of 13 degrees.

Victoria will see winds develop further in the far east this morning, particularly near the coastal areas, such as Mallacoota.

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There is also a gale warning in place for the Central Coast, Central Gippsland Coast and East Gippsland Coast.

Showers will be easing for Melbourne today, with a top of 15 degrees.

Meanwhile, strong and gusty westerly winds are developing over south eastern parts of New South Wales.

Westerly damaging winds averaging 60 to 70 km/h with peak gusts of around 100 km/h are likely over parts of the Snowy Mountains, South Coast, Central and Southern Tablelands, and Illawarra districts this morning.

There's also a severe weather warning for damaging surf for Lord Howe Island for today and tomorrow.

A strong cold front will generate "large and powerful" waves today, with significant wave heights exceeding five metres expected from tomorrow morning.

Sydney will be partly cloudy with winds today, and a top of 19 degrees.

https://twitter.com/BOM_NSW/status/1659815195563130880

It will be a calm end to the weekend for Brisbane with a top of 22 degrees, Darwin will see a maximum temperature of 30 degrees, and in Perth the mercury will climb to 23 degrees.

Winds will ease across Tasmania, Victoria and New South Wales this afternoon and evening as the cold front moves further away and high pressure takes over.

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After hearing a massive crash, residents in a quiet Sydney suburban street ran out to help the victim.

Instead, when people came out of their homes on Copperfield Drive in Rosemeadow last night, they ended up making a citizen's arrest.

The alleged drunk driver tried to flee the scene after crashing into two parked cars.

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"His hand was on the key trying to turn it, I just grabbed him – grabbed his hand with the key in it – and marched him over to the footpath," resident Mark Aylott said.

"I wouldn't let him walk off the footpath because I knew there was a possibility he could run. Now, I'm not gonna let that happen."

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The 54-year-old man was arrested at the scene by police, who allege the man returned a reading of 0.191 on a roadside breath test – close to four times the legal limit.

A red SUV belonging to a family with eight children was hit during the incident – it's uninsured and likely a write-off.

But the family are grateful the outcome wasn't worse, telling 9News their kids often play in the front yard where their car was hit.

"I'm glad it was that time of night," witness Rihannon Snape told 9News.

"I'm glad no other kids were out the front because it could have been so much worse."

The man was arrested and charged with driving while under the influence of alcohol.

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A new mother has been identified as one of two victims of a caravan fire near Brisbane last night.

Jane Strong and a 22-year-old male were killed when the caravan they were sleeping in caught on fire in Upper Brookfield at about 4.30am.

Strong's Partner, Carl Weiss has been taken to hospital to treat his burns, Queensland police inspector Karl Hahne said his burns suggested he either tried to escape or break in to help those inside the caravan.

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The couple's child was sleeping in the neighbouring home on the rural property when the fire broke out.

The baby was found alive and unharmed.

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Emergency services found the caravan completely destroyed after the blaze caused its roof to cave in.

Hahne described the scene as "intense" as flames were bursting from the windows of the caravan.

"There were a number of people staying at the premises overnight and the alert was that there were two people unaccounted for," he said.

"Obviously some of them witnessed the fire so it's been quite traumatic but we are systematically going through, speaking to those people, getting their versions to understand what occurred in the early hours of this morning."

The home on the rural property, located about 30 minutes from the capital city, was unaffected.

A crime scene has been set up and an investigation is underway.

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Two teenage boys have been questioned by police following the fatal stabbing of a Melbourne teenager.

Police have interviewed an 18-year-old male from Burnside, and a 17-year-old boy from Caroline Springs as they continue to investigate the fatal stabbing of 16-year-old Pasawm Lyhym.

The 17-year-old had been arrested by police yesterday, while the 18-year-old later went to a station himself following an appeal by officers.

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Both were released after questioning, with further investigations underway.

Police are still looking for a third teenage boy, who they believe was involved in the incident.

An altercation broke out between two groups at a Sunshine bus stop on May 18, where 16-year-old Lyhym was fatally stabbed, and two more teenagers of the same age were injured.

Police are still investigating the circumstances of the incident. 

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A man was allegedly attacked in Sydney's west after leaving a pub on Friday Night.

The 34-year-old man was allegedly intoxicated when he was punched and thrown to his knees on Station Road in Auburn.

Police say the alleged attacker was driving his Holden Commodore down Station road when the 34-year-old kicked the car, causing the tussle between the two men.

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The incident was captured on CCTV footage, where the 34-year-old can be seen grabbing a plastic crate to defend himself with before the alleged attacker reaches him.

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The driver of the Commodore allegedly jumped out of his car, attacked the man, and then drove off.

The 34-year-old was unresponsive at times from intoxication, not injuries, Police said.

He was treated at the scene by paramedics and was taken to Westmead Hospital for further treatment. 

Police are appealing for anyone who recognises the alleged attacker, who was last seen driving a white Holden commodore, to come forward.

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Prime Minister Anthony Albanese has met with US President Joe Biden on the sidelines of the G7 summit in Japan as the two leaders signed a new climate and clean energy agreement.

Speaking before pen was put to paper on the statement of intent to advance the two nations' climate cooperation, Biden said the agreement signified an expansion of the alliance between Australia and the United States.

"This statement of intent is a testament to our close, bilateral cooperation. I mean that – close," Biden said.

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"We're going to establish climate and clean energy as the third pillar of the Australia-US Alliance.

"This contract can enable the expansion and diversification of clean energy supply chains, especially as it relates to critical materials."

Albanese said climate was a crucial aspect of defence cooperation in the Pacific.

"Many of our neighbours understand that climate change is an existential threat," he said.

"And what we understand is that it's an important component of our national security, and that's why it is an important component, an essential part of our alliance."

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A joint statement from the two leaders said the accord signed the day strengthened Australia and the USA's alliance in response to "evolving challenges".

"We are taking urgent action to elevate global climate ambition, accelerate the global clean energy transition, and support mitigation, adaptation and resilience efforts in the Indo-Pacific and beyond," the statement said.

"The compact affirms the position of climate and clean energy as the third pillar of the alliance, alongside our defence and economic cooperation."

The bilateral meeting in Hiroshima comes as Biden and Albanese prepare for a makeshift Quad leaders summit in Japan, following the US president's withdrawal from next week's now-cancelled conference in Sydney.

"The Quad leaders' summit in Hiroshima will demonstrate the Quad's enduring contribution to the development, stability, and prosperity of the Indo-Pacific through its positive, practical agenda," the joint statement from Albanese and Biden said.

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NSW Police Commissioner Karen Webb has defended her decision to not front the media over the Tasering of a 95-year-old aged care resident until three days after the incident, saying she had to wait for "facts to become clear".

Clare Nowland, 95, remains in hospital after she was Tasered while holding a steak knife at Yallambee Lodge in Cooma on Wednesday.

It's understood police used their Tasers after struggling to disarm the elderly resident, who was using a walking frame and "moving at a slow pace".

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On Saturday, NSW Police Commissioner Karen Webb said she didn't speak to the public about the incident earlier because the big family needed to be notified first.

"Then we had to wait for the investigators to get onto the ground in Cooma, and those investigators have come from Sydney, and we have had to wait for those facts to become clear to us," Webb said.

NSW Police Assistant Commissioner Peter Cotter spoke to media about the incident yesterday.

Webb said she had not seen the footage from the officers' body-worn cameras of the incident, nor does she plan on watching it.

She also said she was "not sure" why there are calls for the footage to be publicly released.

"Firstly I am not sure why they would want to see it," she said.

"Body-worn video is subject to legislative requirements around the surveillance devices act and other things, so it is not routine and we don't intend to release it, unless there is a process at the end of this that would allow it to be released."

Cotter yesterday described the video as confronting.

Webb said she had sat with the family at the hospital yesterday to talk through the process and hear about Nowland's "rich and full" life.

"She has had eight children, she has got 24 grandchildren, 31 great-grandchildren and four further expected this year," Webb said.

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"She is a keen golfer, and very community-minded, and cared a lot for her community and people in her community."

Webb said the family would want answers but it would take time, adding she had complete faith in the investigation into the incident.

"The best detectives in New South Wales are on this case," Webb said.

"They have come from the homicide squad and it is being overseen by the law enforcement conduct commission so I have every confidence that it is being handled in the appropriate manner."

A critical incident investigation has been launched and will be led by the State Crime Command's Homicide Squad, as is standard.

The constable's actions will be examined from a criminal perspective, but Webb said it was too early to speculate on whether charges will be laid.

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Strong wind watches apply for most of the North Island, with sodden soil elevating danger.

When fire first broke out, nobody could imagine the horror that would unfold.

Mexico's Popocatepetl volcano rumbled to life again this week, belching out towering clouds of ash that forced 11 villages to cancel school sessions.

The residents weren't the only ones keeping a close eye on the towering peak. Every time there is a sigh, tic or heave in Popocatepetl, there are dozens of scientists, a network of sensors and cameras, and a roomful of powerful equipment watching its every move.

The 5,426-metre volcano, known affectionately as "El Popo," has been spewing toxic fumes, ash and lumps of incandescent rock persistently for almost 30 years, since it awakened from a long slumber in 1994.

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The volcano is 72 kilometres southeast of Mexico City, but looms much closer to the eastern fringes of the metropolitan area of 22 million people.

The city also faces threats from earthquakes and sinking soil, but the volcano is the most visible potential danger — and the most closely watched.

A severe eruption could cut off air traffic, or smother the city in clouds of choking ash.

Ringed around its summit are six cameras, a thermal imaging device and 12 seismological monitoring stations that operate 24 hours a day, all reporting back to an equipment-filled command centre in Mexico City.

A total of 13 scientists from a multidisciplinary team take turns staffing the command centre around the clock.

Being able to warn of an impending ash cloud is key, because people can take precautions.

Unlike earthquakes, warning times can be longer for the volcano and in general the peak is more predictable.

On a recent day, researcher Paulino Alonso made the rounds, checking the readings at the command centre run by Mexico's National Disaster Prevention Center, known by its initials as Cenapred.

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It is a complex task that involves seismographs that measure the volcano's internal trembling, which could indicate hot rock and gas moving up the vents in the peak.

Monitoring gases in nearby springs and at the peak — and wind patterns that help determine where the ash could be blown — also play a role.

The forces inside are so great that they can temporarily deform the peak, so cameras and sensors must monitor the very shape of the volcano.

How do you explain all of this to 25 million non-experts living within a 100-kilometre radius who have grown so used to living near the volcano?

Authorities came up with the simple idea of a volcano "stoplight" with three colours: green for safety, yellow for alert and red for danger.

For most of the years since the stoplight was introduced, it has been stuck at some stage of "yellow." The mountain sometimes quiets down, but not for long.

It seldom shoots up molten lava: instead, it's more the "explosive" type, showering out hot rocks that tumble down its flanks and emitting bursts of gas and ash.

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The centre also has monitors in other states; Mexico is a country all too familiar with natural disasters.

For example, Mexico's earthquake early alert system is also based at the command centre.

Because the city's soil is so soft — it was built on a former lake bed — a quake hundreds of kilometres away on the Pacific coast can cause huge destruction in the capital, as happened in 1985 and 2017.

A system of seismic monitors along the coast sends messages that race faster than the quake's shock waves.

Once the sirens start blaring, it can give Mexico City residents up to half a minute to get to safety, usually on the streets outside.

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