A significant Arctic blast is set to sweep across the United States, bringing with it life-threatening cold temperatures and dangerous weather conditions. The polar vortex is affecting nearly 90 million people, with central and eastern regions expecting record-breaking cold as temperatures plunge by as much as 50 degrees below normal. Recent reports indicate that North Dakota has shattered previous cold records, and similar situations are anticipated throughout the Midwest and parts of Texas. The National Weather Service has issued extreme cold warnings, urging residents to prepare for extreme winter conditions as a series of winter storms threaten major disruptions. After a deadly weekend of flooding in Kentucky, the combination of severe cold and adverse weather is raising concerns for public safety.