Wet weather and cold Arctic air are expected to bring "difficult, slippery conditions" to the UK on Tuesday, the Met Office said, with snow possible in some northern parts of the country.The weather for the next seven days will be "markedly colder" than it was last week, with "harsh frost" expected towards the end of the week, the forecaster said.

Wet weather and cold Arctic air are expected to bring "difficult, slippery conditions" to the UK on Tuesday, the Met Office said, with snow possible in some northern parts of the country.The weather for the next seven days will be "markedly colder" than it was last week, with "harsh frost" expected towards the end of the week, the forecaster said.