Autoplay
Show Thumbnails
Show Captions
LINKEDINCOMMENTMORE

The coldest, most dangerous blast of polar air in decades gripped the Midwest and pushed toward the East and South on Monday, closing schools and day care centers, grounding flights and forcing people to pull their hoods and scarves tight to protect exposed skin from nearly instant frostbite.

Read or Share this story: http://www.wfaa.com/story/news/2014/08/20/14149714/