Overnight temperatures are plummeting well below freezing in many places across the UK, the Met Office says, as wintry showers are expected to continue on Friday.
Rain, sleet and snow are expected to fall before the weekend, with temperatures close to freezing.
Overnight Friday to Saturday, the thermometer will hit -2C in London, -3C elsewhere in the south, and -4C or -5C in the northwest, forecasters predicted.
Met Office chief meteorologist Frank Saunders said: “Where the showers fall as rain, there is a risk of icy patches forming overnight with temperatures widely dipping below freezing.
“A number of National Severe Weather Warnings have been issued and these are likely to be updated over the coming days.”
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