PHILADELPHIA (WPVI) -- Winds are starting to pick up and it will be a harsh reality when you walk out the door Tuesday. TUESDAY: Any snow on the ground will blow, which could make for reduced ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes escapes and plunges southward into the U.S., Europe and Asia. Studies show a fast-warming Arctic is partly to ...