Winter conditions are already becoming widespread across the contiguous US.
Winter weather advisories (purple) stretch from North Dakota to North Carolina. Parts of northern Florida are under a freeze warning (light blue) for the third straight day. Gainesville, FL had a low temperature this morning of 28, and yesterday morning (Dec 2nd) of 27. This morning at Baudette, MN, the low temperature was -17.
In Europe, at least 60 people were killed from cold. Temperatures were as cold as -15C (5F) in Poland, -20C (-4) at Braemar, Scotland, -24C (-11F) at Moscow, and -51C (-60F) in Siberia. London's Gatwick airport was shut down for two days because of snow, and now flights are expected to be limited by freezing fog.