A town in Iowa was severely damaged by a tornado on Thursday, while strong storms led to a tour boat disaster in Missouri that killed 17.
The risk of severe thunderstorms, including isolated tornadoes, will progress farther to the east and south over the central United States into Friday night.
Severe thunderstorms tracked across Iowa on Thursday afternoon with several tornadoes touching down across the state.
After several dry days, the weather will take a downhill turn as NASCAR drivers gear up for the Foxwoods Resort Casino 301 in Loudon, New Hampshire, on Sunday.
A change in the weather pattern will favor periodic bouts of wet and stormy conditions as well as unusually cool air at times for the Midwest for the duration of July.
A pattern of persistent downpours, beginning with a rainstorm this weekend is likely to disrupt travel and hinder outdoor plans and projects and put summer heat on hold in the Northeast into early August.
Drenching thunderstorms advanced into the northeastern United States Tuesday afternoon and evening, bringing reports of flash flooding throughout the region.