Flash floods ripped through Ellicott City, Maryland, Sunday as more than 8 inches of rain dumped down in the span of about five hours.\r\nPowerful flood waters turned the city's Main Street into a river and swept away cars like they were toys. The same street was devastated by deadly floods nearly two years ago.\r\nParts of Howard County remained under a flood warning early Monday, but Storm Team4 says the threat for more heavy rain has passed, and the likelihood of more flash flooding is decreasing.\r\nMaryland Gov. Larry Hogan declared a state of emergency and visited Ellicott City late Sunday. Hogan told the news media the city had recently received $1 million for flood control as a result of the 2016 floods.\r\n"It took two years to get the money and it's ironic that we just got it this month," Hogan said. "Nobody expected another storm of this magnitude to come two years later because, as I said, they're only supposed to happen every 1,000 years."\r\nHoward County Fire & EMS\u00a0responded to multiple water rescues and fire officials told residents at one point not to call 911 if they were in a safe place.\r\n"If you are trapped, we are coming," Howard County Fire & EMS tweeted. Crews as far away as Northern Virginia helped with rescues.\r\nThe fire department said it also responded to reports of buildings collapsing.\r\nHoward County Executive Allan Kittleman said authorities aren't aware of any fatalities or missing people.\r\nKittleman said at an outdoor news conference he toured the historic county seat after the flash flood receded and was "heartbroken" it was so severely damaged again. As he spoke, Maryland Lt. Gov. Boyd Rutherford put a comforting hand on Kittleman's back.\r\nKittleman says he considers the damage worse than the flooding two summers ago that claimed two lives.\r\nOf the city's residents and business owners, Kittleman says "they are faced with the same daunting task again.'' But he says: "We will be there for them as we were in 2016."\r\nA flash flood warning is in effect for parts of Howard, Frederick, Carroll, Baltimore and Anne Arundel counties in Maryland. Flood warnings are also in effect for that region.\u00a0\r\nFire officials advised not to try to drive through or cross roads with standing water.\r\nPeople who need shelter can go to the Roger Carter Community Center at 3000 Milltowne Drive, Howard County Recreation and Parks tweeted.