Wintery storms are due to make their way over British Isles on Saturday, with heavier snow expected on Sunday.
Accumulations of 4 to 8 centimetres could occur quite widely with greater totals possible.
Temperatures in some areas could drop as low as -2C.
A weather warning issued for Sunday has been upgraded to amber which means an increased likelihood of bad weather.
The warning is a change in the Met Office's original predictions of heavy snow across Lancashire, meaning the worst of the snowy weather hitting the United Kingdom could stay away.
Significant snow fall expected as status Orange warning issued
It is warning that there will be slippery footpaths and "treacherous" road conditions as a result.
Saturday night will be cold, with very heavy rain spreading up from the southwest overnight and snow showers expected in the east, west and north of the country.
Nevertheless, the Met Office, in conjunction with Highways England, is warning that rural communities in the county still face being cut off by the snow.
Strong winds pose the risk of blizzard conditions across northern Scotland on Saturday, where thousands of homes were left without power on Friday.
An orange warning is the middle of three warning categories used by Met Eireann. Bitterly cold with frost lingering in places through the day.