I never put my head on the chopping board but remember this date and what the charts are showing! I am so confident that ne USA will be in a bitterly cold pattern in the next 10 days and most the UK will be bathed in average temperarures due to a west based negative NAO at best i will run down my garding chanting to pepper pig naked. We need to face facts that the possible cold period from the 20th has now been pushed back significantly if at all!
Also as stated by many other members the heights over iberia are preventing cold uppers to flood south to effect most the UK unless you live up a hill firther north