A sprawling, slow-moving storm system is threatening to unleash dangerous flooding across the central U.S. starting today, with up to 18 inches of rain possible in some areas.
Fueled by tropical moisture from the Caribbean, the system could dump four months’ worth of rain in less than a week.
Flash flood watches cover more than 22 million people, and major rivers like the Ohio and Mississippi face the risk of significant surges.
Meanwhile, severe storms and tornadoes are expected Tuesday and Wednesday from Texas to the Midwest, with heavy snow in northern Minnesota adding to the storm’s punch.