March 17, 2021 Weather Related Service Update: Severe Weather Expected Across the South Major Severe Weather Outbreak Expected Across the South of the United States The National Weather Service states that a vigorous storm system will roll through the Southern United States through Thursday and a widespread severe weather outbreak is expected from the Lower Mississippi Valley and South into the Southeast. Thunderstorms could potentially produce intense and long track tornadoes, hurricane force damaging winds and large hail. For live updates click here.