In addition police are closing the A380 between Splatford Split to Weare Barton so they can focus on keeping A38 running. However the A38 is closed to HGVs by police.
Snow is expected to continue into Monday early hours and may affect travel on Monday morning in places.
General advice is:
• Never assume a road has been salted. Remember that showers or rain will wash salt off roads leaving them prone to ice, and in extreme cold even salting will not stop ice from forming;
• Allow additional time for your journey and reduce your speed;
• Drive with care and according to the conditions;
• If you have vulnerable or elderly neighbours, think about how they could possibly be helped through the cold spell;
• Try to maintain indoor temperatures to at least 18C, particularly if you are not mobile, have long-term illness or are 65 or over. NHS Choices has more information on staying healthy during cold weather;
• Listen to local radio for updates on current weather conditions and ensure you are stocked with food and medications
• Check out any school closures.