The Highways Agency is warning drivers to take extra care on the roads this evening and overnight as further snow and rain - possibly turning to ice - is forecast.
Action plans with police and local authorities have been activated for the A38 at Haldon Hill and extra resources including heavy vehicle recovery teams are in place. Even where snow has not fallen, there is a risk of rainwater turning to ice.
Drivers who do set out are advised to take extra care, to leave plenty of extra time for their journeys, and to leave enough distance between vehicles to stop safely.
While driving they should listen to travel bulletins on the radio and take a severe weather emergency kit including warm clothes, food, water, boots, a torch and spade for snow.
More top news
What were the details of the Chancellor's spending review and Autumn statement - and how do they affect us here in the West?
A couple who were once friends with serial killers Fred and Rose West have been jailed for their own crimes against ten children.
Our political correspondent Bob Constantine has been listening to the Chancellor as he delivers his spending review.