Winter storm: Polar Vortex freezes much of US; over 9,000 flights disrupted – Times of India
A polar vortex swept across the United States, affecting regions east of the Rockies with extreme winter weather at the beginning of the week.Heavy snow blanketed cities like Washington, D.C., and Louisville, Kentucky, while rare freezes hit southern states, including parts of Florida. Ice and wind created treacherous conditions, downing trees and making roads impassable.Five…