Thousands of flights have been cancelled, including services to and from London Heathrow, as a major snowstorm sweeps across the US Northeast.
The storm has already snarled travel along the East Coast from Washington to New England, forcing airlines to cancel more than 5,600 flights.
It is the first time in nine years that New York City has been placed under a blizzard warning. In the US, these conditions are more commonly seen in the Great Plains and the Midwest.
According to the National Weather Service, a blizzard is defined as a winter storm in which heavy or blowing snow combines with winds exceeding 35mph, reducing visibility to less than a quarter of a mile (402 metres) for at least three hours.
New York’s mayor has declared a state of emergency and urged residents to stay at home.
“I’m urging every New Yorker to please stay home,” Mr Mamdani said.
In New York, snow is reported to be shin-deep, with cars completely encased, while residents walk to and from stores under a travel ban that restricts vehicles to just snow ploughs and police SUVs.
More than 600,000 homes and businesses are without power, while schools have closed and after-school programmes have been cancelled.
Dozens of flights from London Heathrow to places like New York, Los Angeles and Boston.
According to FlightAware, the two airports with the most cancellations - John F Kennedy and LaGuardia - are based in New York.
John F Kennedy International has seen 1,086 cancellations to and from the airport, LaGuardia has seen 1,025 cancellations, Boston Logan International has seen 968 cancellations, Newark Liberty International has seen 861 cancellations and Philadelphia International has seen 602.
Below is a list of the UK to US flights departures cancelled from London Heathrow on Tuesday.
10.10 DL002 New York City (Delta Air Lines)
10.40 BA185 New York City (British Airways)
11.20 BA173 New York City (British Airways)
11.40 BA213 Boston (British Airways) - Delayed
12.00 UA017 New York City (United Airlines)
12.20 B6020 New York City (JetBlue)
12.50 UA147 New York City (United Airlines)
12.55 BA177 New York City (British Airways)
15.10 UA015 New York City (United Airlines)
16.00 UA941 New York City (United Airlines)
16.25 BA113 New York City (British Airways)
16.30 BA189 New York City (British Airways)
16.55 AA135 Los Angeles (American Airlines)
