Tens of millions will be eagerly looking to the skies later for a total solar eclipse – but a patchy forecast means the big moment could be ruined for some.
Cloud is forecast in places such as Texas, Oklahoma and southern Arkansas as people gather for what’s set to be the most viewed eclipse ever.
“A few tornadoes” and “very large hail” are also possible around the time of the eclipse in those states, says the US National Weather Service
Image: Path of the eclipse (UK timings)
However it’s a different story in the New England region and parts of Canada, where clear skies are set to bring near-perfect viewing conditions.
The eclipse begins on Mexico’s Pacific coast around 11.07am local time (7.07pm UK time) before moving into Texas 20 minutes later and tracking northeast.
Some 31 million people are within the 115-mile-wide path of totality – where the sun will be covered by the moon’s shadow for an eerie few minutes that will resemble dusk.
Many more ‘eclipse chasers’ have travelled for the spectacle, paying big money for accommodation months in advance – with some relocating as the forecast shifts.
Others are holding ‘eclipse parties’, while a million are expected at Niagara Falls – with a state of emergency declared on the Canadian side to free up more resources.
Image: A sign in Paris, Texas, but cloud in the state is set to make things tricky. Pic: AP
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But states like Vermont, which is expecting ideal viewing conditions, is expecting a last-minute influx.
“We’re hearing of people potentially rerouting private plane routes to see the eclipse here instead,” said Michael Hibben, director of the Pierson Library in Shelburne.
Other US states outside the path of totality will still be able to see a partial eclipse.
Astronomers also say northern and western parts of the UK will get a “small grazing” of the eclipse between 7.52pm and 8.51pm.
The best spots will be Belfast, where 28.1% coverage of the sun is predicted, and Stornoway in the Outer Hebrides – with a 33.7% eclipse.
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Glasgow is also expecting 12%, Dublin 15%, and Liverpool a tiny 3.1%.
A partial eclipse will be viewed across nearly all of the UK in 2026, but a full one won’t happen until 2081 in the Channel Islands or 2090 in the South West.
Mr Biden was diagnosed on Friday, with tests revealing the cancer had spread to his bones.
The former president posted an image of himself and his wife Jill on X on Monday and wrote: “Cancer touches us all. Like so many of you, Jill and I have learned that we are strongest in the broken places. Thank you for lifting us up with love and support.”
Image: The King and Joe Biden at Windsor Castle in July 2023. Pic: Reuters
The King’s letter comes after British Prime Minister Sir Keir Starmer said he was “very sorry to hear President Biden has prostate cancer”.
“All the very best to Joe, his wife Jill and their family, and wishing the President swift and successful treatment,” he added.
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Meanwhile US President Donald Trump said he was “saddened” by the news, adding: “We extend our warmest and best wishes to Jill and the family, and we wish Joe a fast and successful recovery.”
Former US president Barack Obama said: “Michelle and I are thinking of the entire Biden family.
“Nobody has done more to find breakthrough treatments for cancer in all its forms than Joe, and I am certain he will fight this challenge with his trademark resolve and grace. We pray for a fast and full recovery.”
Image: Barack Obama (right) with Joe Biden at a campaign event in 2022. File pic: Reuters
After a poor debate performance against Mr Trump and amid escalating concerns around his age and fitness to serve, Mr Biden withdrew from the 2024 presidential election race and endorsed his vice president Kamala Harris.
Ms Harris wrote on X after his diagnosis: “We are keeping him, Dr. Biden, and their entire family in our hearts and prayers during this time.
“Joe is a fighter – and I know he will face this challenge with the same strength, resilience, and optimism that have always defined his life and leadership. We are hopeful for a full and speedy recovery.”
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1:16
Mr Biden’s diagnosis: What we know
Former US president Bill Clinton wrote on social media: “My friend Joe Biden’s always been a fighter. Hillary and I are rooting for him and are keeping him, Jill, and the entire family in our thoughts.”
Hillary Clinton, who unsuccessfully ran for president in 2016, said she was “thinking of the Bidens as they take on cancer, a disease they’ve done so much to try to spare other families from”.
Speaker of the US House of Representatives Mike Johnson said it was “sad news” and his family “will be joining the countless others who are praying” for Mr Biden.
Former House speaker Nancy Pelosi described Mr Biden as a “great American patriot” and said she was “praying for him to have strength and a swift recovery”.
Mr Trump’s secretary of state, Marco Rubio, wrote on social media that he and his wife were “united in prayer for the Biden Family during this difficult time”.
US President Donald Trump said he was “saddened” by the news, adding: “We extend our warmest and best wishes to Jill and the family, and we wish Joe a fast and successful recovery.”
Former US president Barack Obama said: “Michelle and I are thinking of the entire Biden family.
“Nobody has done more to find breakthrough treatments for cancer in all its forms than Joe, and I am certain he will fight this challenge with his trademark resolve and grace. We pray for a fast and full recovery.”
Image: Barack Obama (right) with Joe Biden at a campaign event in 2022. File pic: Reuters
British Prime Minister Sir Keir Starmer said he was “very sorry to hear President Biden has prostate cancer”.
“All the very best to Joe, his wife Jill and their family, and wishing the President swift and successful treatment,” he added.
After a poor debate performance against Mr Trump and amid escalating concerns for his health, Mr Biden withdrew from the 2024 election and endorsed his vice president Kamala Harris.
Ms Harris wrote on X: “We are keeping him, Dr. Biden, and their entire family in our hearts and prayers during this time.
“Joe is a fighter – and I know he will face this challenge with the same strength, resilience, and optimism that have always defined his life and leadership. We are hopeful for a full and speedy recovery.”
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1:16
Mr Biden’s diagnosis: What we know
Former US president Bill Clinton wrote on social media: “My friend Joe Biden’s always been a fighter. Hillary and I are rooting for him and are keeping him, Jill, and the entire family in our thoughts.”
Hillary Clinton, who unsuccessfully ran for president in 2016, said she was “thinking of the Bidens as they take on cancer, a disease they’ve done so much to try to spare other families from”.
Speaker of the US House Of Representatives Mike Johnson said it was “sad news” and his family “will be joining the countless others who are praying” for Mr Biden.
Former House speaker Nancy Pelosi described Mr Biden as a “great American patriot” and said she was “praying for him to have strength and a swift recovery”.
Mr Trump’s secretary of state, Marco Rubio, wrote on social media he and his wife were “united in prayer for the Biden Family during this difficult time”.
Following President Trump’s Middle East trip – which the White House is touting as an unbridled success – Sky News’ Martha Kelner sits down with Barbara Leaf, who was US ambassador to the United Arab Emirates during Trump’s first term and assistant secretary of state for Near Eastern affairs in the Biden administration.
She was also in the team that formed the first formal US presence in Syria after more than a decade.