The warnings will come into force in parts of Scotland, North West England and Yorkshire and the Humber on Friday. The severe weather conditions may lead to power outages and “isolated lightning strikes”, the Met Office said.
It warned that the UK would see “frequent sleet and snow showers may lead to some difficult driving conditions and disruption to travel on Friday morning.”
It said: “Some roads and railways likely to be affected with longer journey times by road, bus and train services
“Probably some icy patches on some untreated roads, pavements and cycle paths
“Some brief power outages are possible with a risk of isolated lightning strikes.”
The Met Office added that the snow may cause “dangerous, icy patches.”
It said: “Frequent wintry showers arriving from the west overnight Thursday into Friday are likely to lead to a fresh covering of snow for areas above 200m (mainly around 2-5 cm, possibly as much as 10 cm over highest ground where showers are most frequent).
“Falling snow below this level may cause some temporary slushy accumulations which then may freeze and cause dangerous, icy patches where skies remain clear for long enough.
“These showers will turn increasingly to rain and sleet at lower levels through Friday morning, before steadily easing from the west through the afternoon ahead of an area of rain and milder conditions.”