The yellow warning is in place from 8pm today until 3am on Tuesday, affecting regions on the west coast of Scotland, England and Wales.
A 60-year-old man was hit by a falling tree near Castle Douglas in Dumfries, Scotland over the weekend, and a man in his 20s died in north London after a tree fell on his car, authorities said.
Two women were also taken to hospital after they were struck by another falling tree in Aberfeldy, Perth and Kinross.
Scotland, parts of Northern Ireland and England's north were hit with the worst of the wind and rain on Saturday and Sunday.
An amber alert for wind ended at 9pm last night, after Britain had endured a weekend of wild weather brought by two storms in three days.
By 7pm on Sunday, about 90,000 customers were still without power, according to the Energy Networks Association, which represents operators in the UK and Ireland.
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The equivalent of a third of a month's rain fell in parts of Scotland over the weekend.
First Minister John Swinney met senior politicians, emergency teams and forecasters to discuss the ongoing response to the weather.
Forecasters have warned that similar conditions will likely return early next week.
Met Office meteorologist Alex Burkill said conditions would improve on Monday, before more rain and wind arrives on Tuesday.
"There are more heavy rain and strong winds to come because of a deepening area of low pressure - another one - which is heading towards us," he said.
"All be it, this low doesn't look as deep or is coming quiet as close as Boelo did."
The Met Office has issued a yellow warning for strong winds from 3am Tuesday to midnight for the far north of England, Scotland, and the far northeast of Northern Ireland.
Early on Monday, the Environment Agency issued 10 warnings that flooding is expected and 65 alerts where it is possible.
The Scottish Environment Protection Agency said 10 flood warnings and 11 flood alerts were in place.
Meanwhile, Natural Resources Wales reported nine flood alerts were active at the same time.
After the meeting, Transport Scotland's Stuart Wilson said "significant recovery work" was required before the rail network returns to normal.
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Trains services faced widespread disruption on Sunday, with Northern Rail "strongly advising" people not to travel.
Meanwhile, Network Rail Scotland shared an image of flooding at one Glasgow station and fallen trees above the lines near another.
It also shared pictures of a trampoline beneath a train and a shed next to tracks, and asked people living near rail lines to firmly secure their garden furniture.
Speed restrictions were in place across Scotland and several sections of its railways was closed, the operator added.
Some flights were diverted from landing at Leeds Bradford Airport and others were cancelled.
Collapsed trees, cables on carriageways and damaged surfaces also prompted closures affecting major roads in Scotland.
Buildings in Ayr, southwest Scotland, were evacuated by police over concerns they posed a danger, as well as a caravan park in Ballantrae, around 33 miles away.
Emergency services were called to a flooded care home in Sidney Street, Saltcoats, North Ayrshire, on Sunday evening.
Storm Boelo followed Storm Austen, which brought strong winds to southern parts of the UK on Friday.
And he would know. In 2022, he was part of a small garrison of fighters who held out against appalling odds as the city of Mariupol fell around them.
The siege of the Azovstal steelworks in the opening weeks of the war had far-reaching effects on the battlefield.
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The defenders are credited with holding up Russian troops and buying time for Ukrainian forces elsewhere to regroup and rearm.
Four years later, it continues to resonate in both Ukraine and Russia.
Anatolii first signed up for Ukraine's military in 2014 - the year Russia seized Crimea and parts of the Donbas - and served until 2021, when he moved to Poland.
"When the full-scale war began, I simply returned to Kyiv, to Ukraine, that same day," he told Sky News.
"I thought we would have to defend the capital and fight for it."
He joined what became the Third Assault Brigade, one of Ukraine's most elite units whose members included Azov Battalion veterans.
The fight to secure the capital in the early weeks of the war was fierce. But defenders in Kyiv knew that bitter conflicts raged across their country, too.
"During periods of rotation, we were also watching the news and saw that Mariupol was surrounded.
"We also talked about how the guys needed help and that somehow we needed to break through to Mariupol."
Located on Ukraine's south coast, Mariupol was one of the first targets for Russian forces, who sought to establish a land bridge to occupied Crimea.
"Then, towards the end of March, they started gathering people for Mariupol," Anatolii says.
The volunteers weren't initially told what kind of mission it would be.
"They simply said there was an opportunity to help the guys."
But Mariupol at this point was under siege. Any operation would have to break Russian lines or cross them somehow.
The classified mission to reinforce the defenders of Mariupol was to be by helicopter.
Anatolii and others landed at the city's port and engaged Russian forces. They fought their way to the Azovstal steelworks, where many of the city's defenders were holed up against horrific odds.
"I was wounded in the leg during that fighting. I was evacuated to a bunker at Azovstal where there were medics, and they amputated my leg there."
Living at the Azovstal steelworks, a network of underground tunnels, Anatolii encountered surgeon Yevhen Gerasimenko, who previously told his story to Sky News.
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Fighting there was brutal and continued as stocks of food and weapons ran low.
Anatolii and the others remained there until the middle of May 2022, when the Azovstal garrison finally laid down their weapons under orders from military command.
"We surrendered only after the president intervened and Zelenskyy made a statement about surrendering into captivity in order to save lives."
Anatolii was taken into Russian captivity.
"The Russian Investigative Committee would come to see us very often, and then the FSB would come as well. They kept having the same conversations with us: 'We'll release you soon. Once we agree on a good price, we'll hand you over straight away'."
He says he mentally prepared himself to spend at least a year in captivity. He remembers two occasions when he was struck by his captors.
When he was brought in, his captors asked which unit he had been in. When he answered, he says he was hit in the face with a rifle barrel.
As a severely wounded PoW, he was returned to Ukraine in a prisoner exchange on 29 June 2022. He says he lost 25kg in three months.
But many of his Azovstal comrades have not been released. One of Anatolii's roles now is as an ambassador for the Heart of Azovstal, a charitable initiative that works to support the Azovstal defenders and their families.
Anatolii said: "Our main goal is to remind people that many soldiers from the Mariupol garrison are still in captivity. When they went into captivity, they were promised a maximum of four months.
"It's now the fifth year they've been there, and we continue to remind people about them."
World champion boxer Oleksandr Usyk has also called for the Azovstal defenders to be released.
It's thought that Russia places a particularly high price on them when it comes to prisoner exchanges.
"They don't want to exchange the Mariupol garrison because even during the most difficult times, when Mariupol was surrounded, nobody laid down their weapons and everyone fought to the very end," Anatolii says.
Anatolii helps people who have just returned from captivity adjust to life on the outside.
He also plays amputee football for a team in Kyiv, where he lives, as well as working as a military instructor for the Azov Corps.
"I don't train military personnel, but rather people who are considering joining," he says.
"I believe that everyone in Ukraine should know how to apply a tourniquet and how to stop someone's bleeding. So people come to us and learn how to do that."
PC Lee Lane was shot in the foot after he approached two suspects at a bus stop in Angel Row at 4.50am, Nottinghamshire Police said. He continues to be treated in hospital.
A woman was charged on Thursday in connection with the shooting.
Detectives have now charged a man with assisting an offender.
Jahmal Ruddock-Senior, 35, from Bulwell, will appear at Nottingham Magistrates Court today.
Police said the incident happened after the officer approached two people acting suspiciously.
Aisha Zaman, 27, from Hyson Green, was charged with possession of a prohibited firearm and possession of that firearm with intent to commit an indictable offence.
She was remanded into custody after appearing at Nottingham Magistrates' Court on Friday.
Several others have been arrested in connection with the incident and have been released on bail pending further inquiries.
Among them are two men, aged 24 and 30, and two women, aged 25 and 21, who were arrested on suspicion of assisting an offender.
A 33-year-old woman arrested on suspicion of possession of a firearm with intent to endanger life and assisting an offender has also been bailed.
Police have appealed for anyone with information to get in touch.
The trilateral talks are understood to be taking place in November, the Ukrainian leader wrote in an X post on Sunday, citing an interview with Ukrainian television programme TSN Week.
While it's not clear who would attend such a meeting, Mr Zelenskyy said Ukraine was ready for discussions between technical groups.
Mr Zelenskyy said Ukraine would not discuss limits to its armed forces, or enforced post-war neutrality.
Kyiv has long sought entry into the NATO alliance despite the reluctance of some members.
The Ukrainian president also renewed his push for a trilateral US-brokered meeting between him and Vladimir Putin, having long-argued Putin is the only person in Russia who can make major decisions to end the war or meaningfully discuss core issues, such as the fate of the nearly 20% of Ukraine that Russia occupies.
"The issue of territories is a red line that can be discussed exclusively at the level of leaders," Mr Zelenskyy said.
However, he stressed he did not want to approach any meeting of the three nations' leaders "having lifted all sanctions".
"Sanctions were imposed for aggression, not for an opportunity to have a chat," the Ukrainian president said, adding that he didn't want to meet with Putin "without tools," including sanctions and frozen assets.
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In the interview with TSN, the Ukranian leader also said US warnings about imminent Russian ballistic missile strikes, critical to Ukraine's air defences, had been fully restored after recent issues.
Mr Zelenskyy said SpaceX's Starshield satellite internet had been working at speeds of up to 260mph (420kph) since early on Saturday morning, after it was reduced earlier in October amid diplomatic pressure on Kyiv from Washington.
He said both issued had been discussed in a meeting with US special envoy Steve Witkoff in Oslo on Tuesday, casting the changes as results of that meeting.
Despite the improvements, Mr Zelenskyy still criticised the approach of the US, including when it came to Ukraine getting missiles for its Patriot systems, which he said was "moving very slowly".
Authorities said the coach left the road and "plunged" down a steep ravine on a mountain road in Fogars de Montclus, located between Barcelona and Girona.
In total 83 people were injured in the crash, with 24 being taken to hospital, the Catalan emergency services said.
The local government said the accident was between a car and a bus, which then veered off a narrow, winding road and fell down a 65ft (20m) embankment.
A total of 23 ambulances and two medical helicopters were deployed to the scene, alongside psychological support and rescue teams.
Catalonia's Corps of Firefighters said drones and sniffer dogs would be sent to the scene, with "intensive searches" being carried out around the bus to ensure no casualties have been missed.
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An alert for the incident was issued just after 4pm UK time, with emergency services receiving at least 25 calls about the crash and regional police closing part of the BV-5114 road where the accident happened.
Catalonia's police force said it was working to investigate the causes of the accident.
A Red Cross reception centre has been set up at Can Ramis in Sant Celoni, to help people affected by the accident.
Salvador Illa, the president of the Catalonian government said on X: "I am following with great concern the bus accident in Fogars de Montclus."
He thanked emergency services for their work and said he was in "constant contact" with Catalonia's interior minister and health minister.