The third most powerful hurricane on record to hit the U.S. mainland has caused widespread damage in several southern states. It also led to at least two deaths. Hurricane Michael struck land in northern Florida Wednesday as a Category 4 hurricane, with winds up to 250 kilometers per hour. On Thursday, Michael weakened to a tropical storm, with winds of about 80 kilometers per hour, as it kept moving northeast. Weather officials believe the storm will pass over North and South Carolina before heading out to the Atlantic Ocean in coming days. One man was killed when a tree fell onto his house outside Tallahassee, Florida. In southwest Georgia, an 11-year-old girl died after debris from the storm hit her home. More than 700,000 homes and businesses were left without power in Florida, Alabama and Georgia.