Alerts for cold weather are in effect for nearly half of the U.S. population, running from the northern Plains to the Gulf Coast and the Rockies to the Southeast.

T​he season's most drastic drop in temperatures is now plowing through the central and eastern states with dangerous wind ...

A arctic blast is sweeping through much of the U.S. and the Pikes Peak region this weekend, bringing snow, slick roads and bitterly cold temps that will linger through the ...