The UK experienced its coldest November night in over a decade, with snow and icy conditions forecasted to grip various parts of the country.
Temperatures plummeted to as low as -8C (18F) in Scotland's Aonach Mor, while towns like Prestwick and Keswick faced temperatures around -5.5C to -6.1C (22F to 21F).
The snow has spread across Scotland and even reached as far south as Norfolk in eastern England, a rare occurrence.
This freezing weather has made travel extremely hazardous in areas of the Midlands, northwest England, Northern Ireland, and potentially elsewhere due to freezing fog. More snowfall is anticipated in Scotland's north and east, as well as eastern England, with a chance of snowfall on the moors in southwest England.
Northern Ireland experienced rain and snow, contributing to icy conditions on roads and pavements, while north Wales saw sleet. The source of this bitter cold is from Scandinavia, where record-low November temperatures are being felt.
The Met Office issued warnings for snow and ice across Scotland, northeast England, Yorkshire, and parts of southwest England. These alerts predict disruptions and delays on roads and railways, with icy patches posing risks on pavements.
Road closures have already affected areas like Goathland in the North York Moors and the A1671 between Whitby and Pickering.
London's Mayor, Sadiq Khan, activated severe weather emergency measures to protect rough sleepers as temperatures are expected to drop below freezing.
Simultaneously, the UK Health Security Agency has raised an amber cold-health alert for the northern regions, foreseeing significant impacts on the health service and vulnerable populations. A yellow cold-health warning is in effect for the Midlands until early December.
Dr Agostinho Sousa from the agency advised the over-65s and unwell individuals to heat their main living areas and encouraged everyone to check on vulnerable neighbors and family members. These alerts underscore the severity of the cold spell and its potential health risks across the nation.