If the weatherman warns of arctic conditions, get out your thermal underwear, hats, and gloves. It's going to be cold. The word arctic describes frigid and inhospitable weather.
The word arctic refers to the Arctic Circle — the North Pole and the land that surrounds it — which is the northernmost major circle of latitude on the Earth. When you think of the word arctic, imagine the weather at the North Pole, cold and windy, suitable only for hearty animals and mythical toy-making elves. Bundle up for the arctic blast heading down from Canada towards the U.S.!