At least two people died, thousands of US flights were cancelled or delayed, and more than 1.1 million homes and businesses lost power as severe storms, including hail and lightning, moved through the eastern region of the country on Monday. According to the National Weather Service, a tornado might hit the greater DC area, which could last until 9 p.m. A special Weather Service statement warned, “There is a significant threat for damaging and locally destructive hurricane-force winds, along with the potential for large hail and tornadoes, even strong tornadoes.”At least two people died, thousands of US flights were cancelled or delayed, and more than 1.1 million homes and businesses lost power as severe storms, including hail and lightning, moved through the eastern region of the country on Monday. According to the National Weather Service, a tornado might hit the greater DC area, which could last until 9 p.m. A special Weather Service statement warned, “There is a significant threat for damaging and locally destructive hurricane-force winds, along with the potential for large hail and tornadoes, even strong tornadoes.”