Climate Central: The longest streak of days on record without a tornado-related fatality in the U.S. came to a violent end on Wednesday morning, when a large and powerful tornado struck Adairsville, Ga., killing at least one person in a mobile home park. That tornado, which may rank as an EF-4 -- the second most powerful on the Enhanced Fujita Scale -- overturned cars on I-75 and damaged numerous buildings in downtown Adairsville, which is about 60 miles northwest of Atlanta. Other twisters touched down in Arkansas,...