The Met Office has warned that snow is likely to fall on Wednesday (February 18) in the afternoon and evening, although forecasters say there is some uncertainty over the precise locations that will be hardest hit. Temperatures could feel as low as -9C in south Wales and northern England during the wintry spell.

Met Office meteorologist Annie Shuttleworth said:"As colder air mixes with a low-pressure system, there is a risk of snow above around 100 metres across southern areas. The most likely scenario brings snow to parts of south Wales and southern England, with heavy rain further south. There is a less likely chance that the snow extends north into the Midlands, north Wales and Northern Ireland."

Forecasters currently expect the bulk of the snow to fall across the South West, with Exmoor and parts of Somerset potentially seeing more than five inches in just three hours. Flurries may reach as far east as Surrey, while areas further north than Herefordshire are unlikely to see snow overnight.

Graphics released by the Met Office highlight the expected snow corridors, showing the heaviest falls targeting the South West, the Home Counties, and south Wales. A secondary scenario could bring snow further north, with stronger easterly winds lashing the south coast, including Dorset, on Wednesday night.

Thursday is set to remain wet and cold, particularly across southern England, with temperatures feeling as low as -5C in northern England – a stark contrast to recent mild days when temperatures topped 11C in places like Gosport, Hampshire.

Drivers and residents in affected areas are being advised to prepare for treacherous conditions and rapidly changing weather.

The Met Office update comes as drivers across the UK are being reminded of a handy hack ahead of the ice and snow -  put tea bags inside their cars ahead of the frosty weather.

Teabags, especially black or green tea, are natural moisture absorbers. To address this problem, automotive experts say teabags can help. 

Ben Pitcher, a motoring expert at DPF Experts, said: "Teabags, especially black or green tea, are natural moisture absorbers. Placing them in your car can help reduce condensation, especially in winter. While they aren't as powerful as professional dehumidifiers, they offer an economical and eco-friendly solution for combating minor dampness."

Placed near the windscreen, they absorb some of the moisture from the air and prevent fogging. This trick works with new, completely dry black or green teabags. Alternatively, used bags also work, but they must be totally dry.