By Tim Hanlon Brits are being urged to leave home early and check for travel disruption from ice and snow this morning after shivering through one of the coldest January night in 14 years. Cold air moving southwards has meant that people have needed to wrap up warm this week and there aren’t likely to be milder conditions until Friday. Tuesday night became one the coldest January night since 2019, with lows reaching -14C. Much of the UK endured temperatures below freezing overnight, with preliminary data from the Met Office indicating the mercury fell to as low as -11C in England and -10C in S…