A severe cold snap is sweeping across the Northeast, with an extreme cold warning issued for New York City and surrounding areas. Temperatures are expected to plummet, resulting in wind chills as low as -30 degrees, creating dangerous conditions that could lead to frostbite in just minutes. Millions of Americans, especially those in the Northeast, are on alert as arctic air takes hold. Alongside bitterly cold temperatures, light snow is also forecasted, with snow accumulations expected in various regions. Authorities are urging residents to take precautions, including wearing face masks and avoiding unnecessary travel, as the cold weather is set to persist throughout the weekend.