Meto update
f snow spreading southeastwards from western Scotland into northwest England on Saturday afternoon will then reach the Midlands and parts of southern England during Saturday evening and night. Whilst not everywhere will have lying snow, local accumulations of 2-4 cm are likely at low levels with 5-10 cm possible above 300 metres across western Scotland and Cumbria. Ice is likely to prove an additional hazard in places, especially during Saturday night. Please be aware of the potential for some travel disruption and difficult driving conditions.
A frontal zone which moved eastwards into Britain on Saturday has stalled against the cold airmass which became established over the UK earlier in the week. This has allowed rain at the leading edge of this frontal zone to turn to snow and persist for several hours before the frontal zone weakens during Sunday, allowing less cold conditions to start developing and some of the snow to start melting. This snow is expected to continue to fall along a relatively narrow corridor, perhaps only 100 miles wide, which means that some areas within the warning area may escape much of the snow. Meanwhile, icy stretches are likely to develop on untreated surfaces, including footpaths and cycleways, as snow starts to peter out later on Saturday evening or during Saturday night. This warning has been updated to extend it further east over England.