The Lower 48 and Europe enjoyed a mild start to winter but will be transitioning into a period of colder and possibly even snowier conditions through at least the mid-point of January. This will lead to a surge in heating demand on both sides of the Atlantic. ECMWF and GFS models forecast that after an unusually warm December driven by El Nino, lower 48 temperatures from Thursday through Jan. 15 will trend around a 30-year seasonal average of about 37 Fahrenheit. After the mid-point of the month, the latest GFS Operational model shows a cold…