Bitterly cold temperatures and deep snow are forecast across the UK this week as weather blows in from Russia.
A wind chill will mean that during the day it will feel like -10C to -15C.
Yellow and amber weather warnings for snow are in place for Monday and Tuesday, covering southern and eastern England before extending to cover the Midlands and Scotland.
Wednesday and Thursday’s yellow warnings will also cover Cornwall, Scotland and Northern Ireland.
By Wednesday night, more than 20cm of snow could have accumulated in some parts of eastern England and Northern Ireland, say forecasters.
Scotland is expected to have between 5cm and 10cm of snow on Wednesday.
Road, rail and air travellers could face severe disruption, with BBC Weather warning of a possibly hazardous conditions in southern England later in the week as a low pressure weather system moves up from the Bay of Biscay and hits the already “exceptionally cold air”.
“Any precipitation will turn readily to snow, and with bitterly cold strong to gale force easterly winds,” blizzards are likely, said Alina Jenkins from the BBC’s Weather service.
UK weather warnings
Met Office meteorologist Charlie Powell said: “Unusually for Britain, the snow is going to be quite dry, so it will blow around and gather in drifts and we could see some blizzard conditions.
He added that while he did not want to alarm people, the Met Office was urging people to be prepared.
Parts of the UK will feel as cold as northern Norway and Iceland.
The Local Government Authority said councils were well prepared, having stockpiled 1.5 million tonnes of salt to help keep roads clear.
Council teams will also be visiting elderly and vulnerable people to deliver hot meals and carry out emergency heating repairs, the LGA said.
However, it urged people to check on neighbours who may struggle to cope in the cold.
Manchester United moved back into second place in the Premier League as substitute Jesse Lingard gave them victory over top-four rivals Chelsea at Old Trafford.
The Red Devils had to come from behind after Willian started and finished a flowing move to give the visitors the lead in the first half.
United pulled level before the break, with striker Romelu Lukaku getting in front of Marcos Alonso to score against his former club for the first time.
Lukaku then set up Lingard to head home with 15 minutes left, after which Chelsea’s Alvaro Morata had a goal incorrectly disallowed for offside.
Defeat leaves the Blues in fifth place after Tottenham beat Crystal Palace 1-0 earlier on Sunday.
A run of just one win in their past four league matches, coupled with Spurs’ 10-game unbeaten streak, means they are out of the Champions League places with 10 games remaining.
Chelsea went close to taking the lead at Old Trafford after just four minutes, when Morata ran on to Alonso’s brilliant volleyed cross, but his shot hit the bar.
Lukaku, facing the club he played for between 2011 and 2014, also had a flying volley superbly saved by Thibaut Courtois.
Lukaku rises to the occasion
Lukaku came into the game having scored 12 goals in the Premier League so far this season, but with none – and only four shots on target – against the other teams in the top six.
The Belgian, signed for £75m from Everton last July, had never scored in either seven previous league appearances against Chelsea, or 10 for the Blues during a spell in which he enjoyed more success while on loan at West Brom and Everton.
But the 24-year-old edged in front of Alonso to finish off a neat move involving Alexis Sanchez and Anthony Martial and end his dry spell against the top flight’s elite.
Lukaku came close to a second when he met Sanchez’s superb ball with a flying left-footed volley, but Courtois denied his international team-mate by tipping the ball over.
He swung the match decisively in United’s favour, though, when he slipped free on the right of the box and chipped in a cross that Lingard nodded home.
Missed opportunity for Chelsea
When Willian rounded off a move he started to score his fourth goal in his past three outings, everything looked to be falling into place for Antonio Conte’s side. The Blues had not lost after scoring first in the league since a 2-1 defeat by Crystal Palace on 1 April in 2017 – 22 games ago.
But things unravelled – and while Conte substituted the influential Eden Hazard, Mourinho’s decision to bring on Lingard was rewarded.
Conte will be aggrieved by the decision to disallow Morata’s late goal, and the Italian will look back at the visit to Old Trafford as an opportunity missed.
Peace breaks out between bosses
Much of the build-up to the match had centred on a verbal spat between the two managers over the preceding weeks.
Mourinho had referenced Conte’s four-month ban for failing to report match-fixing, for which the Italian was later cleared of any wrongdoing.
The Chelsea boss called his United counterpart “a little man” – though both played down the issue in their final news conferences before the match.
Conte said the dispute had “stopped”, while Mourinho said he would “not speak about it – not at all”.
Despite that, there was a frisson of interest about how – or perhaps if – they would greet each other before kick-off.
Mourinho was first out of the tunnel while Conte delayed his entrance slightly, but the pair shook hands before referee Martin Atkinson got the match under way.
There was another handshake at full-time, coupled with a conciliatory pat on the back of the head from Mourinho.
Man of the match – Romelu Lukaku (Manchester United)
What the managers said
Manchester United manager Jose Mourinho: “It is not special because it is Chelsea, it is very special as we beat the champions, who are a fantastic team, who are very difficult to beat and because this is the three points that keep us in second place, which is the place we are fighting for.
“It opens a little gap, not much to Chelsea, and it is a very important result for us. It feels special as the players gave everything. It is not possible to win against a team with the quality of Chelsea without the quality we gave.
“We did not start well, Chelsea started much better, but we found our position on the pitch and found our concentration and we grew up throughout the game.”
Chelsea manager Antonio Conte: “We had a great chance to get a good result against Manchester United, but instead we talk about a defeat.
“You must be the best team at the end of the game, not just in the first half. We had a great chance to take three points here. Now we have to start to work this season as the league is very difficult and we need to fight for a place in the Champions League. I hope the players realise this soon.
“Luck is important for every team, but this season we have not been so lucky. It is disappointing after this performance to finish with a defeat.”
Lukaku and Lingard lead way – the stats you may have missed
Lingard has scored 13 goals in all competitions for United this season – only Lukaku (22) has scored more.
United have won two of their past three matches against Chelsea – one more than they managed in their previous 14 combined against the Blues.
Chelsea have lost back-to-back away Premier League matches for the first time since November 2015, when they were managed by Mourinho.
The Red Devils have lost just one of their past 35 home league matches against the defending top-flight champions (W20 D14).
Chelsea lost a Premier League match in which they scored first for the first time since last April against Crystal Palace. They had won 22 games consecutively when scoring first before today.
Willian has scored 12 goals in all competitions this season, equalling his best tally in a season for Chelsea (also 12 in 2016-17).
Eden Hazard has been involved in nine goals in his past eight appearances for Chelsea in all competitions (six goals, three assists).
Chelsea have only lost four of their past 55 Premier League games played on Sunday – all four defeats have been in Manchester (two against United, two against City).
Chelsea return to the north west when they take on Manchester City at Etihad Stadium on Sunday, 4 March at 16:00 GMT. United are in action the day after, when they face Crystal Palace at Selhurst Park at 20:00.
Scotland and England have been asked by Six Nations organisers to explain a clash in the tunnel before Saturday’s Calcutta Cup match at Murrayfield.
As the teams returned to the dressing rooms after the pre-match warm-up, England back Owen Farrell and Scotland forward Ryan Wilson appeared to clash at the entrance to the tunnel.
Television footage showed other players then pulling the pair apart.
Scotland won 25-13 to secure their first victory over England since 2008.
Six Nations Rugby said it would be “writing to the unions to request clarification on what happened in the tunnel”.
Once both have responded, the tournament organisers will decide whether to begin an investigation or initiate disciplinary proceedings.
A Scottish Rugby spokesperson told the BBC: “Scotland are delighted to have won the Calcutta Cup at Murrayfield and the focus of the team now turns to the game against Ireland in Dublin.”
England head coach Eddie Jones said he had not seen the pre-match incident and did not believe it had any bearing on the outcome, adding: “These things happen.”
Scotland scored three tries – two from centre Huw Jones – to end England’s hopes of a second Grand Slam in three years.
They remain in contention for a historic third successive Six Nations title, but trail leaders Ireland – whom they face in the final round – by five points.
Analysis from the scene
BBC rugby union reporter Sonja Mclaughlan
It was a bit shocking to find myself in the middle of a melee at Murrayfield as it’s not something I’ve ever witnessed before.
I’d just finished doing interviews for BBC television and had moved to the mouth of the tunnel at the exact moment it kicked off to take photos of Scotland captain John Barclay and the team mascots.
I was aware of the atmosphere suddenly changing and turned round to see Owen Farrell animated and angry, being restrained by a number of his team-mates. Meanwhile, a number of Scotland players were trying to stop the scuffle escalating by pulling back one of their squad.
It was caught from a distance by BBC cameras and it’s clear the fracas started as the players finished warming up and moved towards the mouth of the tunnel at the same time, which in itself is unusual.
There’s not a lot of space there as Murrayfield has a dividing pillar at the entrance to the tunnel, so the players were suddenly in very close proximity to each other, creating a flashpoint.
Tottenham striker Harry Kane said he had surprised himself with how quickly he had matched last season’s goal tally, after his late winner at relegation-threatened Crystal Palace.
Kane netted 35 goals in 38 games in 2016-17, and equalled that total in his 36th match of this campaign on Sunday – peeling away at the back post to head in Christian Eriksen’s 88th-minute corner.
It seemed Spurs were going to fail to capitalise on having 76% of the possession, with England international Kane unusually wasteful when he missed from close range at the start of each half.
“I know I’m in good form,” said the 24-year-old, who reclaimed his position at the top of the Premier League scoring chart with his 24th of the season, one more than Liverpool’s Mohamed Salah.
“That gives me confidence going into every game, so I’m happy with how it’s going.
“I set myself little targets and I’m going quicker than I expected to this season. I’ve got 35 now, so I just have to keep scoring goals.”
Before Kane’s match-winning moment, Palace goalkeeper Wayne Hennessey saved superbly from Ben Davies with just over 15 minutes left, and Serge Aurier missed an open goal for the visitors inside the last five minutes.
Helped by Chelsea’s 2-1 defeat at Manchester United, Spurs moved up one place to fourth and extended their unbeaten run in all competitions to 15 games.
Mauricio Pochettino’s side are the only team yet to lose a Premier League match in 2018, although this was only a third league win in their past 10 away games.
Defeat leaves Palace 17th, level on points with 18th-placed Swansea.
Dive, dive, dive
Dele Alli was involved in another diving controversy with 16 minutes remaining.
“He’s probably half a foot away from Wayne Hennessy when he’s dived into him,” former Premier League striker Steve Claridge said on BBC Radio 5 live, in reference to the England midfielder’s dramatic tumble over the Palace keeper.
Alli was not shown a yellow card by referee Kevin Friend on this occasion – he has already been booked twice for diving this season – but he might prefer to avoid social media for a while after his latest fall.
The 21-year-old was involved in the most tackles of any Spurs player (five), but it was a quiet match for him overall as he made 36 passes compared with 92 from Eric Dier, and 58 touches compared with 109 by Eriksen.
It was a better afternoon for Kane, who has now scored 23 goals in 34 Premier League London derbies – equalling ex-Chelsea striker Didier Drogba’s total in those fixtures in 30 fewer matches.
Kane’s goals have also been worth more points to his club – 14 – than any other player in the top flight this season.
“He’s incredible and his achievements in this season, and the previous seasons too, have been great,” said Spurs boss Pochettino.
“Congratulations to him for one more goal.”
Get well soon, Wilfried
Palace have 12 senior players out injured heading into the home stretch, including meetings with another three of the top five in their next four games until the end of March.
That injury list led manager Roy Hodgson to hand winger Aaron Wan-Bissaka a debut at right-back – and the 20-year-old did not look that out of place.
But for Palace, the most crucial on a list that also includes Mamadou Sakho, Martin Kelly, Joel Ward, Jeffrey Schlupp, Ruben Loftus-Cheek and Bakary Sako, is Wilfried Zaha.
“There wasn’t much choice [playing Wan-Bissaka],” said Hodgson. “If he hadn’t played, I don’t know who would have played there.
“Playing against a team with Tottenham’s quality, we did pretty well I think – but it’s so tough when you’re robbing the under-23s of players just so you can fill a bench.”
Palace have now lost all 10 games they have played without Zaha since September 2016.
The Ivory Coast forward, who has scored four league goals in 20 starts this season, injured a knee in the 1-1 draw with Newcastle at the start of February.
Hodgson has said Zaha – who was initially ruled out for a month – is “well ahead” of schedule, although that is still likely to be several weeks.
Palace’s fate will probably not be determined by results against Tottenham, Manchester United, Chelsea and Liverpool, but by games like the 17 March visit to Huddersfield that breaks up that run.
‘We always knew we could score’ – reaction
Tottenham manager Mauricio Pochettino speaking to BBC Match of the Day: “I think in the end we got what we wanted, and we fully deserved the victory. The three points put us in a really good position in the table.
“We started to feel towards the end it was difficult today, but we always knew we could score. We had great players on the pitch and when you have them it’s always possible to score.”
Crystal Palace boss Roy Hodgson speaking to BBC Match of the Day: “It’s very frustrating. I feel really sorry for the players, because to work as hard as that, and to be under the cosh as long as we were, I thought we worked so hard, and suffered the loss of James Tomkins to a severe cramp, so it’s cruel then when you concede so late in the game.
“If I’d have been talking to you here at 0-0, I’d have been a happy man. But now I can’t hide my feelings. I’m not an actor, I’m really sad for the players. I see how disappointed they are in the dressing room and there’s not much I can say to change how they feel – no praise will change how they’re feeling right now.”
Assist king Eriksen at it again- the stats
Only Darren Anderton (67) has provided more assists for Spurs in the Premier League than Eriksen (45), who is now joint second alongside Aaron Lennon.
Spurs are now unbeaten in their past 15 games in all competitions, their longest run since going 16 without defeat between December 1998 and March 1999.
Kane scored the 150th goal of his club career in all competitions, with 134 of those coming as a Spurs player.
Palace are winless in their past five Premier League games, their worst run since Hodgson took charge in September 2017.
Spurs have conceded just one goal in their past six games against the Eagles in the Premier League, winning all six meetings.
In fact, Spurs have won three consecutive away league games against Palace for the first time in their history.
Man of the match – Harry Kane (Tottenham)
Crystal Palace’s tricky run continues with the visit of Manchester United at home next Monday, 5 March (20:00 GMT), while Tottenham entertain Rochdale in their FA Cup fifth round replay on Tuesday (19:45 GMT) before returning to the Premier League against Huddersfield at home next Saturday, 3 March (15:00 GMT).
For one small US non-profit group, the murder of 17 people at Marjory Stoneman Douglas High School came as no surprise.
“We felt like there was a something big potentially coming,” said Amy Klinger of the Educators’ School Safety Network.
Her organisation tracks media reports on school threats and incidents. It found a 12% increase in threats to schools between the autumn school semesters of 2016 and 2017, and a 59% rise in violent incidents.
But what has alarmed the group is that they have tracked almost 400 cases since the 14 February attack.
The Ohio-based network has seen up to 65 threats to US schools a day, compared with a daily average of 11 before.
“We always know there’s an uptick after an event like [Florida’s school shooting] – a contagion effect, a copycat effect,” Ms Klinger, who has a 28-year career in education, said. “But this is a significant spike.”
Ninety minutes after the gunman, alleged to have been Nikolas Cruz, killed students and three teachers in Parkland, Florida, there was a new threat in Brooklyn, New York.
Two 16-year-old boys are alleged to have posted a picture on social media platform Snapchat. One was posing with what looked like an assault rifle, New York police told the BBC.
They had threatened to attack their charter school and captioned the photograph with “Don’t come to school tmw”, prosecutors said according to local media.
Two days later, a security guard at a California high school overheard a student threatening to “shoot up” his school in the next few weeks after a teacher took away his earphones.
The student said he was joking, according to local media, but after a search of his home, police found two semi-automatic rifles similar to the AR-15 used by the Florida gunman, two handguns and 90 high-capacity magazines.
‘We cannot afford to not act’
While not every threat has proved credible, authorities across the country are not taking any chances.
“We cannot afford to not act on any threat,” County Sheriff Jim McDonnell told the LA Times. His department has since set up a 24-hour special team to tackle the threats that come in.
Since the Florida shooting, LA school authorities have received 160 calls related to a “possible criminal threat” and police recorded 19 tips about possible threats against local schools, compared with 52 in the whole of 2017.
“You’ve seen a huge spike in kids being arrested,” says Ms Klinger, who suggests this trend will help act as a deterrent against hoaxes as well as serious threats.
“We can’t joke about having a bomb in our bag in an airport, and so now we can’t say we’re going to shoot up our school and say that’s a joke – it’s not.”
She attributes the recent influx in threats and incidents to three elements – the intensity to which Americans are responding to the Florida tragedy, the copycat effect that incites others to commit similar attacks, and social media.
Over half have come via social media and have heightened alarm amongst parents.
A social media post that spread among students and parents on Friday at Bayonne High School in New Jersey led to 500 children being pulled from the school.
Authorities eventually said it was a false alarm based on a threat made to another high school in New Mexico that shared the school’s BHS acronym.
In the wake of the Parkland attack, the US’s worst school shooting since 2012, debate has been rife on what to do to ensure further attacks on schools are stopped.
Student survivors are calling for tighter gun control while Republicans have put forward the idea of arming teachers.
President Trump tweeted just 10 days after the Florida attack about incentivising educators to carry guns with bonuses and annual training.
Skip Twitter post by @realDonaldTrump
Armed Educators (and trusted people who work within a school) love our students and will protect them. Very smart people. Must be firearms adept & have annual training. Should get yearly bonus. Shootings will not happen again – a big & very inexpensive deterrent. Up to States.
— Donald J. Trump (@realDonaldTrump) February 24, 2018
End of Twitter post by @realDonaldTrump
Arming teachers would be too expensive and would not make children safer, Ms Klinger said.
“It’s just not a good solution. I can’t find anyone [in the field of education] who thinks it’s a good idea.”
The threat of a mass shooting at a school remains high in the minds of Americans, and her network’s research on national trends has become increasingly relevant to the national debate.
They began looking at bomb threats in 2014 and the following year set up a database on threats to schools when they found none existed.
But Ms Klinger worries the numbers are significantly under-reported.
“Our concern is that we need to know what some of the trends are predicting right now,” she says, “because it’s a lot easier for someone to secure a gun than build a bomb.”
The NHS is investigating claims by a new mother who says she found bandages in her body seven weeks after giving birth at Wexham Park Hospital, Slough.
“I took out a large piece of decomposing material from inside me that was soaked in blood,” Alexandra Loredana told BBC News.
Ms Loredana added that she had suffered from thrush and ‘light vaginal wounds’.
A hospital trust spokesman told the BBC: “We are aware. We have started an investigation.”
The new mother, from Slough, Berkshire, gave birth to baby Dominic in January.
Ms Loredana said she initially explained to her midwife how she felt uncomfortable going to the toilet and that something smelled terrible – her midwife checked her stitches and said ‘everything was fine’.
The new mother said she was unable to get an appointment with her local walk-in centre until 7 March, 2018.
She said: “For seven weeks I changed my pads more than 10 times a day. Whether I had bleeding or not I just wanted my pads to absorb the horrible smell.
“Last night I had a bath for the first time and I felt courageous enough to wash with my fingers inside my vagina to clean it.
“I was breathless when I took out a large piece of decomposing material from inside me that smelled horrible and was soaked in blood.
“How did this happen?”
Ms Loredana then went to the accident and emergency department at the same Slough hospital and saw a doctor.
James Taylor, head of communications at Frimley Health NHS Foundation Trust, said: “I don’t know how frequently these things happen”.
He said the Trust would make a further statement once it had spoken to Ms Loredana and completed an investigation into the case.