Split in Polar Vortex to Usher in Warm Weather Across Winter-Weary Eastern US Near Beginning of March

Split in Polar Vortex to usher in warm weather across winter-weary Eastern US near beginning of March

The polar vortex is splitting — an exceedingly rare phenomenon for this time of year that will be an unusual driver of warmer temperatures, as the calendar flips to March and meteorological spring.WHAT IS THE POLAR VORTEX?The core of the polar vortex contains some of the coldest air on the planet and typically sits over the North and South Poles about 10-30 miles above Earth’s surface in the atmospheric layer known as the stratosphere. WHY SPRIN…