Singapore Airlines: Is flight turbulence getting worse – and what types are there?
Severe turbulence struck a Singapore Airlines flight from London Heathrow earlier today, with one man killed and many others “launched into the ceiling”.
Authorities believe a 73-year-old British man, who had a heart condition, likely died from cardiac arrest, with at least 30 others injured as a result of the turbulence.
Deaths from turbulence are extremely rare, and the US’ Federal Aviation Administration (FAA) said 146 passengers and crew have been seriously injured by turbulence between 2009 and 2021.
Read more:
Images show damage in plane after one killed in turbulence
But what could have caused the incident, what types of turbulence exist, and are the events getting worse? Here’s what experts have said so far:
Pic: Reuters
What does the flight data show?
Flight data shows a spike in altitude of around 275ft (84m) at 2.49pm local time. Shortly after, the plane returned to a cruising altitude of around 37,000ft (11,277m).
According to Flightradar24, “the flight encountered a rapid change in vertical rate, consistent with a sudden turbulence event”.
At 3.03pm local time, the flight changed course and began its diversion to Bangkok.
Around 20 minutes later, at about 3.25pm, the flight declared an emergency – a Squawk 7700 – before landing in Bangkok at 3.45pm.
Source: Flightradar24. All times are local
What could have caused the turbulence?
Tim Atkinson, an aviation consultant and pilot, told the Sky News Daily podcast he believes “it’s fairly clear” the Singapore Airlines flight “encountered atmospheric turbulence”.
He noted that the area – called the Intertropical Convergence Zone – where the Boeing 777 plunged 6,000 feet is “renowned among pilots, and I dare say passengers, for turbulence”.
“Despite abundant caution occasionally, there’s turbulence ahead which can’t be identified, and the unfortunate result of an encounter is injury and, very rarely, fatality,” he said.
Mr Atkinson also noted that the larger the aircraft, “the worse the atmospheric perturbation, the disruption in the smoothness of the atmosphere, needs to be to cause major problems”.
He then said the 777 is “one of the largest and, I daresay, most solid airframes widely flying around the world”.
Pic: Reuters
What types of turbulence are there?
Sky News’ weather producer Jo Robinson notes there are a few forms of turbulence – where there’s a sudden change in airflow and wind speed.
Turbulence can often be associated with storm clouds, which are usually well forecast and monitored, allowing planes to fly around them.
Clear-air turbulence (CAT) is much more dangerous as there are no visual signs, such as clouds.
This invisible vertical air movement usually occurs at and above 15,000ft and is mostly linked to the jet stream.
There are clues on where CAT may occur, but generally it can’t be detected ahead of time, which means flight crews can be caught unaware with no time to warn passengers and put seat belt signs on.
It is unclear what type of turbulence the Singapore Airlines flight went through.
How common is an incident like this?
Chris McGee, a commercial pilot for more than 20 years, said in her experience the plane did encounter CAT which is “almost impossible to predict” and comes “out of the blue”.
Ms McGee said turbulence is not in fact that rare, but to experience it to this degree is “phenomenally rare”.
“In my career I’ve experienced one incident of severe turbulence,” she said, adding that she has heard of maybe “two, possibly three incidents of something that extreme” from fellow pilots.
The reported 6,000-ft drop in under five minutes is quite normal in a controlled descent instigated by the pilot, she said.
However, what they experienced was not a nice smooth, controlled descent, but an “absolute maelstrom of the aeroplane flinging itself around all over the sky”.
“It’s awful what happened to those on board, one death is tragic, other people were injured, but something like that is incredibly rare,” she said.
“We do train in the simulator every six months at least where we practicse things we can’t practise in the real aeroplane. Things like emergency procedures, abnormalities and unusual weather conditions like this, for example.
“We are taught how to fly the aeroplane through these extreme events and how to recover them should the plane depart from its normal flight mode.”
Her best advice for any passengers concerned about their safety on the flight is to follow what the cabin crew “strongly suggest and keep their seatbelts loosely tied at all times. On the flight deck that’s what we do. It will protect you”.
Pic: Reuters
Is turbulence getting worse?
It’s been understood for some time that climate change is increasing turbulence during flights, and the trend is set to worsen according to reports.
In June last year, a study from Reading University found that in a typical spot in the North Atlantic – one of the world’s busiest routes – the total annual duration of severe turbulence increased by 55% from 17.7 hours in 1979 to 27.4 hours in 2020.
Moderate turbulence was also found to have increased by 37% from 70.0 to 96.1 hours, and light turbulence increased by 17% from 466.5 to 546.8 hours.
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Professor Paul Williams, an atmospheric scientist who co-authored the study, said at the time: “My message from this is we need to do something otherwise flights will become more turbulent in future [as global heating increases further].”
Professor Paul Roundy, from the University of Albany, said on X on Tuesday that the 55% increase in “a very infrequent signal gives a real, but small, change in absolute risk”.
He noted that “it’s not something a randomly selected passenger should worry about,” before adding: “Airline travel of the future won’t be fraught with wings ripped off planes, or have thousands of dead or injured passengers.
“It will mostly look like it does today.”
World
Ten explosions near international airport in India-administered part of Kashmir, officials say
Ten explosions have been heard near Srinagar International Airport in India-administered parts of Kashmir, officials have told Reuters news agency.
The blasts followed blackouts caused by multiple projectiles, which were seen in the sky above the city of Jammu earlier on Friday.
Explosions were also heard in the Sikh holy city of Amritsar, in the neighbouring Punjab state, according to Reuters.
An Indian military official told the agency that “drones have been sighted” and “they are being engaged”.
It comes as tensions between India and Pakistan across the line of control around the region of Kashmir have boiled over this week, leading to fears of a wider conflict.
On Wednesday morning, India carried out missile strikes in Pakistan and Pakistan-administered parts of the disputed region.
The retaliation came weeks after 26 people, mainly Indian tourists, were shot dead by gunmen in an India-administered part of Kashmir last month.
The government in India said it hit nine “terrorist infrastructure” sites, while Pakistan said it was not involved in the April attack and the sites were not militant bases.
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Explained: India-Pakistan conflict
Around 48 people have been killed since Wednesday, according to casualty estimates on both sides – which have not been independently verified.
India also suspended its top cricket tournament, the Indian Premier League, as a result of rising tensions, while the Pakistan Super League moved the remainder of its season to the United Arab Emirates.
Meanwhile, White House press secretary Karoline Leavitt said at a conference on Friday that the US is in constant contact with both India and Pakistan.
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Conclaves are famously unpredictable affairs – and once again the election of Cardinal Robert Francis Prevost as the new pope caught many by surprise.
The newly elected Pope Leo XIV won the consensus of the 133 cardinal electors after only four ballots – a fast process for a diverse college of cardinals.
Though his name had circulated among some Vatican watchers, other cardinals had emerged as clear front-runners, including Pietro Parolin – the Vatican’s number two who would have been the first Italian in almost 50 years to become pontiff – or Luis Tagle, a Filipino cardinal looking to become the first Asian pope.
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What are the conclave’s secrecy measures?
Instead, it was the first North American to win the highly secretive process.
So, what went on behind the closed doors of the Sistine Chapel?
Until Thursday lunchtime, Cardinal Parolin was ahead, gathering between 45 and 55 votes, sources say.
A substantial number, but well short of the 89 votes he needed for a two-thirds majority.
At this point, Cardinal Prevost had between 34 and 44 votes.
But as the Italian struggled to grow his support during the first three rounds of voting, he stepped down from the race, endorsing Prevost instead, Sky News understands.
Read more:
Who is Pope Leo XIV?
List of demands in new pope’s in-tray
How does new pope compare to his predecessors?
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Who is Pope Leo?
An internal battle between Luis Tagle and Pablo Virgilio David – both cardinals hailing from Asia – cancelled out both of their chances.
And a contender from Africa – the most conservative sector of the church – was never likely for a conclave where the overwhelming majority of cardinals had been appointed by Francis, a progressive pontiff, sources say.
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Moment new pope emerges on balcony
An American pope has long been seen as highly improbable, given the geopolitical power of the US.
But Cardinal Prevost was able to draw from across the groups making up the electors: moderate US cardinals, South American cardinals and many European cardinals all coalesced around him.
Italian newspaper La Repubblica said Prevost “certainly attracted cross-party preferences, both ideologically and geographically”.
“In the conclave he was the least American of Americans: Born in Chicago, he lived 20 years in Peru,” the newspaper said.
It added: “As a man used to teamwork, Prevost appeared to many as the right man to make the papacy evolve into a more collegial form.”
Standing on Red Square, this was an intimidating sight, which felt much more like a celebration of war rather than peace.
I could feel the ground shake as the tanks rolled past, their caterpillar tracks on the ancient cobbles providing a deafening clatter.
The hairs on the back of my neck stood up in fear as the phalanxes of troops roared “Hurrah” in response to their commander in chief.
And the sight of combat drones being paraded on their launchers was actually quite sickening. Weapons that have been at the forefront of Russia’s invasion of Ukraine were paraded in a show of pomp and patriotism.
Xi Jinping and Vladimir Putin watch the procession. Pic: Reuters
Ukraine war latest: Putin welcomes Xi at Victory Day parade
For the rest of Europe, the 80th anniversary of the end of the Second World War has been a celebration of peace, but this felt much more like a celebration of war.
And it wasn’t just military hardware on display here, but the very identity of modern Russia.
Pic: Reuters
For this is a country that is now defined by its military and its memory. The glory and sacrifice of 1945 have been weaponised to give credence to Russia’s current course and to make people believe that victory is their right.
For Russians, it served as a rallying cry and there was applause when the troops who have fought against Ukraine marched past.
But for those watching in Kyiv and other European capitals, it was an overt warning that Moscow has no intention of backing down.
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Putin hails sacrifice of Russian troops
The parade was considerably larger in scale than in recent years, when units and hardware have been needed on the battlefield. I think it was a deliberate attempt to project an image of confidence, and so was Vladimir Putin‘s positioning of his guests.
China’s Xi Jinping was given a prime position on the Kremlin leader’s right-hand side. It was no surprise given the economic lifeline Beijing has provided, but it felt like a particularly pointed gesture to the West – that they were looking at a new world order.
Despite that appearance of confidence, there were signs of Moscow’s unease that the parade could be disrupted.
There were snipers on every rooftop. Security was extremely tight. And the mobile internet signal across the city centre was completely shut down for fear of Ukrainian drone attacks, meaning none of the international media that had gathered could broadcast any live transmissions.
After the parade finished, Putin saluted the crowds as they spontaneously erupted into rhythmic shouts of “Rus-si-ya” at the sight of him.
Another PR coup complete without interruption, he will have departed as a very happy man.
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