America is bracing for the coldest arctic blast of the season as a polar vortex is set to bring 'most severe' cold snap and ...

The United States is facing another week of relentless and hazardous weather, with severe thunderstorms, tornadoes, flooding, ...

The coldest burst of Arctic air this season is coming to put an icy exclamation point on America's winter of repeated polar vortex invasions, meteorologists warn. And it will stay frozen there all ...