If you happen to live east of the Continental Divide in the Lower 48 States, or anywhere south of the Yukon and Northwest Territories, I probably don't need to tell you this:
Baby, it's REALLY cold outside!
With various factors conspiring to pump frigid Arctic air across most of North America, news published today by NASA and NOAA may not seem surprising: The planet is off to a relatively chilly start in 2021.