Coldest December since records began as temperatures plummet to minus 10C bringing travel chaos across Britain Swathes of Britain skidded to a halt today as the big freeze returned - grounding flights, closing rail links and leaving traffic at a standstill. And tonight the nation was braced for another 10in of snow and yet more sub-zero temperatures - with no let-up in the bitterly cold weather for at least a month, forecasters have warned. The Arctic conditions are set to last through the Christmas and New Year bank holidays and beyond and as temperatures plummeted to -10c (14f) the Met...