There is a chance of a period of heavy snow across this region; should it occur it is likely to cause significant travel disruption.
An area of rain pushing north-eastwards is expected to increasingly fall as snow, at least for a time, as it encounters colder air across Scotland and parts of northern England.
Heavier snowfall is more likely above 150 m, where 5-15 cm of snow may accumulate, and possibly as much as 30 cm of snow in a few locations.
At lower levels 2 - 5 cm may accumulate but there remains a possibility that milder air makes more inroads, with the snow turning back to rain more widely, in this case snowfall would largely be restricted to the highest ground.
A brief period of freezing rain, which would bring areas of ice, is possible in the western, especially south-western, part of the warning area on Wednesday morning.
Valid 05:00AM Wednesday until 9PM Thursday