In Antarctica the winds are at their strongest and most fierce. Air directly above the chilly surface is cooled by radiation, and since air becomes denser at lower temperatures it flows downwards naturally, close to the ground. The effects are enhanced in the Antarctic due to much colder temperatures, resulting in rapid drops in the surrounding air temperature that then cause the flow of air to speed up. The winds in Antarctica have been measured at over 200 mph, making them some of the strongest winds measured on the planet at ground level, even greater than some of the most treacherous tornadoes.
Here’s a video of katabatic winds in action.