Thunderstorms caused flooding in different areas of Massachusetts, knocked out power to thousands of homes and disrupted flight on Tuesday, July 17.The National Weather Service issued a flash flood warning for Worcester, Springfield, Clinton, Boston and Northborough areas.The Massachusetts Emergency Management Agency said more than 3,000 electricity customers in the state were without power.A video of a flooded street in Oxford, a town in Worcester County, was shared online by the Oxford Police Department Massachusetts on July 17. Credit: Oxford Police Department Massachusetts via Storyful