WASHINGTON—The polar vortex hit its peak across much of America on February 19, with an icy grip that made Arctic Greenland seem like a toasty vacation spot in comparison. Even Mars has been warmer ...
This weekend will start a warming trend for much of the nation, after a particularly brutal stretch of below-average ...
It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter.