What's the Scientific Explanation Behind the Polar Vortex?
Date: Tue, 02/05/2019 Broadcast: 02
Remark: There is a scientific explanation behind the polar vortex, which was responsible for the brutally cold temperatures in the Midwestern part of the country. Stephanie Ho has the story.
PARTICIPANTS: Stephanie Ho. Brad Rippey, USDA meteorologist. News clips. The Day After Tomorrow movie clip.