Motorists should be on guard as forecasters warn a cold snap is set to hit England and Wales on Friday.
On what is often thought of the last day of winter, the Met Office issued a yellow warning - or 'be prepared' - with forecasters predicting snow for higher ground.
Snow is also expected on some lower ground, with the morning rush hour singled out as a particularly troublesome time.
The weather turnaround may come as a surprise, with the UK so far enjoying a warmer-than-average winter. Temperatures were recorded at 12.5C in Gravesend, Kent, only a day earlier.
But the South is now expected to see temperatures drop to 6C; and 5C in the North, meaning drivers should prepare andplan their route carefully.
The Met Office's chief forecaster said: "An area of low pressure is expected to move eastwards on Friday. There is considerable uncertainty in its track and therefore on the risk and location of any snow.
"This warning will be kept under review and the public are advised to keep up to date with the forecast and warnings."
Copyright Press Association 2014