Heavy overnight snow in Wales and northern England has caused travel disruption as the new year gets off to a cold start. On Sunday, the Met Office put in place an amber weather warning for snow in northern England, along with seven yellow warnings lasting into Monday, including three for snow and ice in Scotland, Northern Ireland, Wales and the Midlands, one for snow in northern England, and two for rain in the south of England. Although the snow turned into rain in much of the country, drifts accumulated in northern England, especially on higher ground. The Met Office said