Information on update: Adjustments to headline, further details and what to expect, to add more focus on ice. A band of snow will move across the warning area during Sunday. Across northern England snow will mostly be confined to ground above 200 metres elevation, but across Scotland this could fall to low levels during the morning, before becoming increasingly confined to higher ground through the afternoon. Whilst not all areas will see accumulating snow at low levels, 2 to 5 cm is likely in places, perhaps temporarily 10 cm before snow turns back to rain. Above 200 metres elevation 10 to 20 cm is possible, perhaps locally up to 30 cm on hills exposed to the strong southerly winds, and over the highest parts of Scotland. Strong winds will lead to some drifting of the snow. Amounts of snow will depend quite heavily on both elevation and the intensity of precipitation, and as the band pushes east through the afternoon, it will begin to transition to an awkward mix of rain, sleet and snow. Therefore there is likely to be a lot of variation, even over relatively short distances. In addition, there is a risk of freezing rain across the east of the area for a few hours after dawn on Sunday morning, perhaps leading to widespread ice that would affect all surfaces. Ice from freezing rain, also know as black ice or glaze, is difficult to see and difficult to clear. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings