Matthew Lehnert is a Met Office Chief Meteorologist. He said: "As we begin the first full working week of the year, we face a range of winter weather hazards with snow showers and ice.
"In the north of Scotland, snow showers are expected to become more frequent on Sunday night with some locations within the Amber warning areas seeing a further 20-30 cm accumulate by Monday morning.
"Elsewhere in the UK, snow showers, ice and frost are expected at times but milder air will make attempts to spread eastward from Tuesday. This will mean rain becomes more likely in the south, but there is also the possibility of more organised snow along the boundary of the mild and cold airmasses. Strong winds could also be a feature later in the week."
