Snow showers are expected to become more frequent through Saturday evening and night with icy patches also developing on some untreated roads, pavements and cycle paths. Strong easterly winds will lead to some temporary blizzard conditions and drifting of snow. Travel delays on roads are likely, stranding some vehicles and passengers. Some delays and cancellations to rail and air travel are likely. There is a chance that some rural communities will be cut off. Some injuries from slips and falls on icy surfaces are expected.
Snow accumulations will be variable across the area as showers are expected to organise into bands. Whilst some areas will receive relatively small amounts of snow, narrow bands of 5-10 cm of snow are likely, with a chance of 15 cm over higher ground. Strong easterly winds will result in some drifting of lying snow, and lead to a significant wind chill. Showers are expected to become more isolated through Sunday morning.
Snow showers are expected to become more frequent through Saturday evening and night with icy patches also developing on some untreated roads, pavements and cycle paths. Travel delays on roads are likely, stranding some vehicles and passengers. Some delays and cancellations to rail and air travel are likely. Some injuries from slips and falls on icy surfaces are expected.
Snow accumulations will be variable across the area as showers are expected to become organised into bands. Whilst some areas may receive relatively small amounts of snow, narrow bands of 5-10 cm of snow are likely and perhaps up to 15 cm very locally, for example over the North Downs. Strong northeasterly winds will result in some drifting of lying snow, and lead to a significant wind chill. Snow showers are expected to become more isolated through Sunday morning. This warnings has been updated to include more of the Essex coast and the whole of north Kent.
A spell of snow will move west across many parts of southwest Britain on Saturday night and Sunday. Snow will turn heavy in places on Sunday, and may last for much of the day across parts of southwest England. Strong east or northeasterly winds will lead to some drifting of snow, especially over hills, with significant wind chill. Travel delays on roads are likely, stranding some vehicles and passengers. Delays and cancellations to rail and air travel are likely. There is a good chance that some rural upland communities could become cut off. Disruption to power supplies is possible, especially in parts of southwest England, due to wet snow bringing down branches or other structures. The warning has been extended west across Cornwall, and also until 2100; this later clearance most likely in the far southwest.
A weather system is expected to run west along the English Channel and bring a spell of snow to parts of southwest Britain on Sunday, clearing gradually from the east during the afternoon ? but perhaps not until evening over parts of Devon and Cornwall. Amounts of snow are likely to vary considerably across the area. However there is the potential for 5-10 cm of snow to fall quite widely, and 15-25 cm over higher ground, these amounts not taking into account any drifting. As less cold air follows from the south, snow may turn to heavy rain along the south coasts of Devon and Cornwall.
Snow showers will turn heavier later on Saturday, overnight and into Sunday morning. Icy patches will form on untreated surfaces, pavements and cycle paths. Some roads and railways are likely to be affected with longer journey times by road, bus and train services.
A very cold easterly airstream will be in place over the weekend, bringing scattered snow showers. 1-3 cm of snow is likely in places, with isolated falls of 4-7 cm possible over higher ground. By day, any accumulations on roads will be temporary but will be more likely to settle from Saturday evening through to Sunday morning.
Scattered snow showers will affect parts of Northern Ireland late on Saturday and particularly early on Sunday. Travel delays on roads along with delays to rail travel seem likely. Icy surfaces will increase the risk of accidents and injuries.
Showers are likely to become more frequent across parts of Northern Ireland bringing 1 to 3 cm of snow in places and perhaps 5 - 10 cm over hills.
Snow showers are likely to continue throughout Sunday, with an increased chance that longer spells of snow will affect some areas. Southern and eastern regions look most vulnerable overnight and early on Sunday and then southwestern areas of England and south Wales into the daytime. Separate Amber warnings are in force for those areas most likely to see disruption. Any heavier snow will become largely confined to southwest England through the day. There is a chance of travel delays on roads with some stranded vehicles, along with delayed or cancelled rail and air travel. Damage to trees or other structures increases the chance that power cuts could occur, especially over southern and southwestern parts of England. There is a small chance that some rural communities could become cut off. Icy surfaces increase the risk of accidents and injuries. Significant wind chill and drifting will be added factors, especially over hills.
A second dose of unusually cold air will be in place across southern Britain, bringing with it the risk of snow for many. Amounts of snow will be variable, but typically 1 to 4 cm in northern areas and 3 to 8 cm further south. Greater amounts will occur locally, mostly covered by the Amber warnings.
Ice is likely widely on roads, pavements and cycle paths. This increases the risk of accidents, as well as injuries due to falls. This warning has been updated to remove much of Scotland (apart from the southeast) and parts of Northern Ireland whilst it has been extended to cover remaining parts of eastern England and the extreme southwest.
After a very cold day on Sunday, temperatures are likely to fall well below freezing across much of the area into the start of Monday. This will lead to any partly melted snow refreezing. Any remaining sleet and snow in the extreme southwest will clear overnight whilst some wintry showers may continue to affect east coasts, falling onto subzero surfaces.