Met Office issues 10-hour fog and travel disruption weather warning - Met Office issues weather warning for 5 major cities - full list of 19 areas affected - Met Office updates 12-hour weather warning - full list of 102 areas affected - Met Office issues new 7-hour weather warning - full list of 27 areas - Met Office issues new 9-hour snow warning - full list of 24 areas affected - Met Office pinpoints two regions at risk of snow as brutal -7C cold snap to hit in hours - Met Office issues new 16-hour weather warning - full list of areas affected - Met Office issues new 12-hour weather warning - full list of areas affected - Met Office predicts cold and dry weather across country