A slowly progressing atmospheric trough is causing a powerful storm system to move through twelve states, from West Texas to southern Minnesota, for the third day in a row, according to alerts from the National Weather Service. The Storm Prediction Center has issued severe thunderstorm watches for millions in the Northern Plains and Central United States, with experts warning of destructive winds reaching 100 mph, significant hail, and flash flooding in regions already overwhelmed by several days of rainfall. The influx of Gulf moisture fueling the storms is expected to continue until Wednesday, when a cold front may trigger the most hazardous outbreak of the week.
