The infamous weather pattern is actually partly influencing our weather as February ends. And it may again throughout the month of March.

The polar vortex is a large area of cold, spinning air that sits near the North Pole and exists year-round. When it weakens or shifts, Arctic air can spill south, increasing the risk of snow and ...

Add Yahoo as a preferred source to see more of our stories on Google. Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season, followed ...

An Arctic air mass from Canada is bringing brutally cold temperatures to Michigan and the Northeast. Wind chills in Michigan are expected to reach as low as 10 to 20 degrees below zero. The cold snap ...