Arctic Blast and Lake-Effect Snow Grip Eastern U.S. Amid Holiday Travel

A frigid Arctic air mass has descended on the eastern United States, bringing the coldest temperatures since last winter and triggering a major lake-effect snow event in the Great Lakes region. Temperatures are expected to drop 15 to 25 degrees across a wide area, with nearly 70% of the US population experiencing freezing conditions. Winter weather alerts affect nearly 10 million people, with snow accumulations potentially reaching 4 to 6 feet in some areas. The severe weather has led to dangerous travel conditions and road closures, particularly in New York and Pennsylvania.