As much as five centimetres of snow is "likely" to fall in Northern Ireland over the next 24 hours, according to the Met Office.
The current Met Office weather warning of ice and snow is valid until 6:00pm on Saturday.
There have been several reports across the Province of vehicles getting into difficulty on some untreated roads, especially in rural areas.
The Glenshane Pass remains open.
"Snow showers will continue to affect parts of Scotland, Northern Ireland, Wales, northern England and parts of the Midlands," reads the weather warning on the official Met Office website.
"Two to five centimetres of snow is likely in places over the warning area.
"Ten-20 centimetres is possible for some locations, mainly in northern Scotland, Northern Ireland, north Wales and perhaps the northwest Midlands.
"Icy surfaces are also likely to be an additional hazard, especially overnight. The heaviest and most frequent snow showers will progressively become confined to northeast Scotland during Saturday. Impacts include possible travel delays on roads stranding some vehicles and passengers with possible delays and cancellations to rail and air travel.
"Some rural communities could be cut off and power supplies interrupted. Probably some icy stretches on some untreated roads, pavements and cycle paths and also a chance of injuries from slips and falls on icy and snowy surfaces."