Exmoor and Ilfracombe were hardest hit overnight- the A361, A399, A39, A3123, B3343 were all affected by snow but are all passable with care. Additional gritting and snow clearance was carried out on these routes by the county council to help motorists. The B3223 Brendon Common was closed this morning due to heavy snow of up to 20cm in depth, which the council cleared by early afternoon and is now passable with care. Tonight is expected to be the coldest night of the year so far with road surface temperatures expected to plummet as low as -8.5C. Snow showers are forecast to be more widespread across Devon tomorrow, and they could be heavy in places. The Met Office has issued an amber warning of the risk of up to 20cm countywide, with the possibility of 50cm on high ground of Dartmoor and Exmoor. Snowfall is expected to start in the south from around dawn and spread north throughout the course of the day. Conditions could become more disruptive to travel as the day progresses. Secondary gritting routes are again being treated by DCC today, and repeated treatments will be carried out on the main gritting network this evening and into the early hours of tomorrow. Councillor Stuart Hughes, Devon County Council Cabinet Member for Highway Management, said: There was some travel disruption across the north of the county this morning but our teams responded well to clear the snow that was causing any issues. Every available resource is being used to grit our main routes again this afternoon and overnight to give our roads the best possible chance of dealing with the risk of snow which is forecast from the early hours of tomorrow. Snow is expected to start in the south and move northwards, so the whole county could be impacted at different times of the day and conditions are expected to become more challenging as the day progresses. If your journey is essential we would urge you to take extra care, check local travel bulletins and weather forecasts before setting out, and make sure you have essential kit in your vehicle such as warm clothing, a blanket, shovel, food and drink. With a deteriorating situation during the day, consider when you will need to leave to get home safely. Devons snow wardens volunteers have also been alerted to monitor conditions and react according to their own plans. Follow our live feed for the most up-to-date information on the weather forecast, travel and school closures in North Devon.