In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

Weather analysts are divided over the polar vortex’s influence on weather and what that means for the rest of this year’s winter. The polar vortex is an area of low pressure and cold air that ...

January is shaping up to be the coldest in a decade as the polar vortex dips south across the eastern half of the United States — shocking a nation that has enjoyed an unusually balmy end of the year.