Sub-zero Britain: ‘Troll of Trondheim’ sends temperatures plunging to -6C overnight Posted on December 9, 2022 By Charlielikes A snow warning has been issued for parts of the UK as Arctic conditions caused temperatures to plummet overnight – going as low as -9C. news Tags:-6c, ‘to, britain…, news, of, overnight’:, plunging, sends, sub-zero, temperatures, topnews, trending, troll, trondheim’