Heavy Rainfall Causes Flash Flooding in Ellicott City, Maryland (Credit: NWS DC/Baltimore, NWS)5/27/2018 Discussion: Heavy rainfall from deep convective storms fell this afternoon in Ellicott City, Maryland. Earlier this afternoon, severe weather moved through the area producing torrential downfalls. Radar estimates and actual reports of seven inches or more fell in just a few short hours. The rainfall that fell this afternoon caused the Patapsco River, to overflow their banks and reach above major flood stage. That water flowed downstream into Ellicott City, flooding the historic Main Street. As of tonight the heavy rain has moved out and the flood waters have receded.
This is not the first time Ellicott City has seen flooding like this. The geography of Ellicott City is unique in which it has streams upstream that converge to flow into the Patapsco River, making it susceptible to flooding and or flash flooding events. Two years ago, strong storms brought heavy rain that fell in a short amount of time producing flooding that destroyed businesses, homes and cars. That flash flood back in 2016 had two fatalities. A state of Emergency has been declared for the state of Maryland, as it starts to clean up and recover from another historic flood. Now the focus turns to recovery for this city once again. With the flash flood waters receding, there is still a danger being outside. Some streets and buildings are not structurally sound which can collapse, certain roadways may be partially washed away or still covered in standing water making it dangerous to drive. The National Weather Service advises people to stay informed and to avoid standing waters due to not knowing what is underneath them whether it be the condition of the road or the toxins and chemicals in the water. In the image above are more after the flood safety tips from the National Weather Service. For more information on flash floods, how to stay safe after a flash flood and other flooding stories be sure to click here! © 2018 Meteorologist Shannon Scully
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