 Locations impacted include Cedar Rapids, Independence, Anamosa, Vinton, Manchester, Mechanicsville, Marion, Hiawatha, Mount Vernon, Dyersville, Monticello, Robins, Belle Plaine, Jessup, Center Point, Cascade, Lisbon, Fairfax, Solon, and Epworth. This includes Interstate 380 between mile markers 8 and 55. The main alert for a possible tornado. Tornadoes can develop quickly from severe thunderstorms.