STATE COLLEGE, Pa., June 12 (UPI) -- Meteorologists warned Wednesday a tornado threat to the Midwest and the Ohio Valley could evolve into storms with widespread wind damage by the evening.
Among the cities at greatest risk for severe weather are Chicago; Columbus, Ohio; Fort Wayne, Ind.; Aurora, Ill.; Dayton, Ohio, and Louisville, Ky., Accuweather.com said.
Accuweather.com meteorologists compared the potential storm to a "derecho," a widespread and long-lived wind storm associated with a band of rapidly moving showers or thunderstorms, with wind speeds between 70 and 80 mph typically observed.
Thunderstorms are expected Wednesday evening along a corridor crossing east-central Iowa and northern Illinois, with potential heavy flooding as the storm moves through Detroit, Cleveland and Pittsburgh.