(Reuters) - A powerful tornado devastated the Oklahoma City suburb of Moore on Monday, killing 24 people, including nine children, according to the Oklahoma medical examiner's office. At one point, as many as 91 were feared dead, but authorities have since scaled back the official death toll. Here are the 10 deadliest tornadoes in U.S. history: 1. March 18, 1925 ...

The start of tornado season was late but deadly, and now severe weather with the potential for twisters threatens parts of the Plains and Midwest -- including major cities -- heading into the weekend, forecasters said.Powerful thunderstorms were expected on Friday, the Weather Channel reported, and likely will bring hail and strong winds to parts of the northern Plains and lower ...