A chilling forecast is in store for six southern states as a polar vortex brings plummeting temperatures this weekend and into next week. The National Weather Service (NWS) has issued warnings for a significant drop in temperatures across the U.S. South, with meteorologists predicting below-average temperatures. This sudden chill is due to a disrupted polar vortex, a system of low pressure and cold air that typically circulates over Earth's poles. When stable, it confines frigid air to the far north. However, a stretch and weakening of this system has allowed arctic air to spill southward, causing temperatures to plunge. AccuWeather Chief On-Air Meteorologist Bernie Rayno described the situation as a 'massive area of air in northwestern Canada where temperatures are 20 to 30 degrees below zero Fahrenheit, and it is on its way southeastward into the U.S.' This 'mother lode of cold air' is a serious concern. The cold snap will affect Louisiana, Mississippi, Georgia, Alabama, Florida, and South Carolina, with frost advisories and freeze warnings issued as far south as Florida. The NWS office in Atlanta has warned of a surge of cold air arriving by Friday evening, persisting through the weekend. While the Midwest and Northeast are at higher risk of below-average temperatures, the southern states are not immune to the cold. NWS offices across the region have issued warnings, with NWS Jacksonville, Florida, noting a 'Freeze Warning' and 'Frost Advisory' for the area. NWS Birmingham, Alabama, predicts a 'plummet' in temperatures, while NWS New Orleans warns of a 'BIG cooldown' by Monday morning. The NWS Charleston, South Carolina, alerts residents to 'bitterly cold temperatures' and potential wind chills dropping into the single digits to mid-teens above zero on Monday morning, urging preparation.