Destructive storms warning after 37 tornado reports in three days

Federal forecasters say a multiday severe weather outbreak has produced 37 preliminary tornado reports in three days, and another round of potentially destructive storms is expected to peak Friday into Friday night.

Federal forecasters and private meteorologists warned of another round of potentially destructive storms as a multiday severe weather outbreak continues across parts of the central and northern United States. The outbreak has produced 37 preliminary tornado reports since Tuesday. Forecasts indicate conditions will peak late Friday into Friday night with fast-developing thunderstorms possible. The National Weather Service issued severe thunderstorm and tornado watches for portions of the affected region. Key facts: - There were 37 preliminary tornado reports across the U.S. since Tuesday, with 31 reports recorded on Tuesday; most reports came from Iowa, Wisconsin and Michigan. - Forecasters said the highest risk corridor extends from eastern Kansas into parts of the Upper Midwest, and storms in that corridor could produce tornadoes, large hail and damaging winds as the system peaks Friday into Friday night. - The National Weather Service has issued tornado and severe thunderstorm watches for parts of the watch area, and forecasters said the severe risk is expected to shift eastward later this weekend, with additional watches possible. Summary: The outbreak has already caused damage, downed power lines and travel disruptions in multiple states. Forecasters said the event will peak Friday into Friday night and then gradually shift eastward later this weekend. Additional watches and warnings are likely as the system evolves.