Polar vortex map shows states to be hit by triple cold surge

The series of Arctic outbreaks, of which at least three are expected, will likely surge south out of Canada into the Plains, ...
BGR

Here's What The Polar Vortex Looks Like From NASA's Heat-Mapping Satellite

You don't have to live in the U.S. Midwest to have heard about the polar vortex, but if you do you've no doubt felt its effects. Frigid temperatures are swallowing up many states thanks to a mass of ...
MLive

Polar Vortex showing on weather map, will grip Michigan next week

A lobe of the Polar Vortex is going to swing through Ontario just north of Michigan. The upper-air forecast gives us an easy look at this strong winter player. The general meaning of the Polar ...