Ushering in the vortex is a winter storm, the third one of the week, which will track from the Intermountain West on Friday ...

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

While most look for ways to avoid the steady rain falling from atmospheric rivers, some take advantage of the unwieldy ...

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the ...

Studying crowd dynamics could inform strategies that help to prevent dense gatherings from becoming dangerous.

The upcoming midweek storm is one of several systems that promises to bring precipitation and eventually the month's coldest ...

The University of Wisconsin-Madison faced a frigid start to the semester, with the polar vortex expected to bring more icy ...

Scots have been warned about a second 'Beast from the East' bringing snowstorms and sending temperatures plummeting in the ...

This pattern change would be good for a couple ... At the same time we go into a touch milder southwest flow, the polar vortex will still be churning away over northeast Canada.