Kory Gempler is a meteorologist in flight operations for FedEx Express. He and his team of 14 meteorologists are at the center of the carefully orchestrated movement of more than 640 planes to more than 220 countries around the world. Their job is to make sure weather doesn't stand in the way. During last year's holiday season, FedEx Express delivered more than 290 million packages around the world. This year, as always, the question is, how does Santa do it?
KIMBRA CUTLIP is a freelance writer and former assistant editor for Weatherwise.