Dark blue: It's going to take a foot or more of snow to close schools. Green: Any snow's going to shut things down. reddit.com/user/atrubetskoy hide caption

itoggle caption reddit.com/user/atrubetskoy

Contractors, volunteers and members of the Georgia National Guard helped move this car on Thursday. It was one of more than 2,000 vehicles abandoned Tuesday when a wicked winter storm left roads covered in ice. Brant Sanderlin /MCT/Landov hide caption

itoggle caption Brant Sanderlin /MCT/Landov

Staff Sgt. Anthony Orsi, left, and Staff Sgt. Raymond Novak of the Army National Guard helped Lauren Gates (in vehicle) retrieve her car Thursday from the Cumberland Boulevard exit ramp along I-75 North in Atlanta. Guard members and police were working to reunite drivers with more than 2,000 cars. Daniel Shirey/Getty Images hide caption

itoggle caption Daniel Shirey/Getty Images

Traffic is snarled along the I-285 perimeter north of Atlanta's metro area Wednesday. Georgia Gov. Nathan Deal has called Tuesday's snow storm "unexpected" — prompting a response from weather forecasters. David Tulis/AP hide caption

itoggle caption David Tulis/AP

A winter storm dumped snow Tuesday along Interstate 20/59 near downtown Birmingham and on other parts of central and southern Alabama. Tamika Moore/Al.com /Landov hide caption

itoggle caption Tamika Moore/Al.com /Landov

Tuesday night's forecast for the lower 48 states shows temperatures below freezing (the shades of blue and purple) across most of the nation. National Weather Service hide caption

itoggle caption National Weather Service

In Wisconsin, a dairy that makes mozzarella and provolone cheeses is giving its leftover salt brine to counties that use it to help melt road ice. Here, wheels of cheese are stacked in a deli. iStockphoto hide caption

itoggle caption iStockphoto

Here we go again. Earlier this month in St. Louis, Jerome Harris bundled up against frigid temperatures. Now, cold air is again rushing south from the Arctic and a "bomb" of a storm is brewing across much of the Eastern half of the nation. Jeff Roberson/AP hide caption

itoggle caption Jeff Roberson/AP

At the Australian Bat Clinic in Queensland, 15 baby flying foxes (bats) were lined up and ready to be fed Thursday. They were brought there to get out of the extreme heat, which has killed hundreds of thousands of bats. Trish Wimberley/AP hide caption

itoggle caption Trish Wimberley/AP

Hell, Mich., is embracing its frozen fame. The town's Facebook page now features this photo from 2003. Keasha LeClear-Morse/Facebook.com/gotohellmichigan hide caption

itoggle caption Keasha LeClear-Morse/Facebook.com/gotohellmichigan

A man walks through a steam cloud in frigid cold temperatures Tuesday in Manhattan. Brendan McDermid /Reuters/Landov hide caption

itoggle caption Brendan McDermid /Reuters/Landov