Ice is expected to form on untreated roads, pavements and cycle paths across parts of southeast Scotland and northeast England from late Thursday afternoon. Some injuries from slips and falls are likely.
Following snowfall across southeast Scotland and northeast England on Wednesday night some melting and refreezing is likely on untreated surfaces with surface temperatures falling below freezing from mid afternoon.
Frequent showers of rain, sleet, hail (and some snow), combined with low temperatures, will bring about a continued risk of icy stretches. Journeys may take longer, and there is an increased risk of accidents or injuries.
A ready supply of wintry showers brings an enhanced ice risk on untreated surfaces, while showers may remove treatment from some roads.
Snow showers will affect the northwest of the UK during Thursday and Friday, although often falling as sleet and hail near windward coasts. Ice will also form in some areas overnight. Travel delays on roads are likely, as are public transport cancellations. In a few places, mainly upland areas, vehicles may become stranded. There is a chance of power cuts, while services such as mobile phone coverage may be affected. A few rural communities may become cut off. In addition some roads and pavements will turn icy, increasing the chances of accidents or injuries.
Snow showers will be heaviest and most frequent across western Scotland where a further 10-20 cm is likely to build up above 200-300 m with 30 cm possible over the very highest routes. The high ground of Northern Ireland and northern England will also see 10-15 cm building up. At low levels, parts of the warning area will see 3-7 cm of snow but some places near the west coast will see very little. Showers will be accompanied by hail and lightning at times, particularly across western Scotland. Here, in particular, there is potential for disruption to power supplies from lightning strikes. Winds will strengthen at times, particularly from later Thursday, bringing the potential for temporary blizzard conditions and drifting on hills and mountains.
Icy stretches are expected to form on Thursday night lasting into Friday morning. There will probably be some ice on untreated roads, pavements and cycle paths leading to some injuries from slips and falls. In addition rain, hail, sleet and, over higher ground, snow showers will continue to push across Wales and western England with some small accumulations over the higher ground of Wales. These may lead to some difficult driving conditions in places and some longer journey times.
Showers will continue pushing across Wales and western England through Thursday night and into Friday. With some cold air in place these will fall as a mixture of rain, sleet and hail at low levels with snow mainly above 150 m. Surface temperatures will readily fall on Thursday evening leading to icy stretches forming, mainly on untreated surfaces but with continuing showers some wash off is possible.
Icy stretches are likely to form through Friday night and last into Saturday morning with snow showers continuing to affect N'ern and W'ern parts of Scotland. There will probably be ice on some untreated roads, pavements and cycle paths, potentially resulting in some injuries from slips and falls.
Snow showers will gradually ease over Scotland on Saturday morning but icy patches will remain here during this time.