[T]he Met Office has issued a snow and ice warning for Thursday evening and Friday morning.
Following a spell of rain and hill snow, temperatures will fall quickly allowing widespread ice to form on untreated pavements, cycle paths and roads.
Heavy sleet, hail and snow showers will follow.
There is a chance of injuries from slips and falls on icy surfaces.
Bus and train services may be delayed or cancelled, with some road closures and longer journey times possible.
A spokesman for the Met Office said: “Rain and hill snow is expected to clear northwestern Scotland late on Thursday evening, these clearer conditions will spread to all parts by early Friday morning.
“Ice is expected to form as skies clear.
“Heavy sleet, hail and snow showers will follow, and these will be most frequent across Northern Ireland, western Scotland, northwest England and by morning across Wales and the north and west Midlands.
“2-5 cm of snow may accumulate above 100 m with some snow to low levels too.”