Weather maps indicate that the UK, including London, will be covered with massive areas of snow starting Tuesday, therefore British citizens should brace themselves for frigid conditions.

On November 21, as winds carry the snowfall to the west and south of the UK, the capital should prepare for significant disruptions to roads and transportation.

On Thursday, snow is anticipated to fall in parts of the southwest with a 100 percent chance and in Northern Ireland with an 80 percent chance.

On November 22, London can expect to wake up to some level of snow.

Weather maps produced by WXCharts show areas of southern England and Wales covered by swathes of purple, with one to three centimetres of snow expected.

Frequent wintery showers are expected to be covering the country from November 18 to 27, according to the Met Office long range forecast. This will hit mainly in the north of the UK, as well as eastern and western coasts which are exposed to the northwesterly flow.

Earlier today, the Met Office issued a new 17-hour alert for ice, warning of increased risks of slips, falls and travel disruptions overnight.

Residents have been urged to exercise caution, allow extra travel time and stick to main roads when walking or driving, as these are more likely to be gritted.

Snow has already arrived in large parts of the United Kingdom - with swathes of England and Scotland hit by flurries.