Satellite imagery shows a line of “powerful” thunderstorms that hit the midwestern US overnight on May 21-22, causing “multiple fatalities” in Iowa, according to repots.The storms knocked out power in southeast Wisconsin and produced tornadoes in parts of Iowa.In a press conference Tuesday night, Iowa State Patrol Sgt Alex Dinkla reported “multiple fatalities” as a result of the destructive overnight storms, according to local media. Credit: NOAA Satellites via Storyful