A Flash Flood Emergency was declared Tuesday evening for Frederick, Maryland and surrounding cities as heavy thunderstorms approached the area and then stalled just south of the Mason-Dixon Line. The storms persisted through much of the night, dropping over half a foot of rainfall to localized area, according to doppler radar estimates.

This causes numerous water rescues and widespread flooding across the area. The below photo on the left captures a rescuer surveying one of three trapped cars in the flood waters at the intersection of N. Market Street and Schifferstadt Blvd in Frederick. To the right, a rescuer has the save six people, including a child, from those three vehicles.

Despite officials warning not to drive through floodwaters, numerous drivers where found driving through the downtown section of Frederick, which was covered in several inches of water.

Credit: Bryan Chaney

These storms that moved through were associated with the greater thunderstorm complex that brought widespread destruction to parts of the Northeast Tuesday afternoon. Unfortunately, more rain is ahead through this weekend in this part of the Mid-Atlantic, which we detail in the forecast here.




Within the past seven days, a widespread one to three inches of rain have fallen in the Mid-Atlantic with pockets of higher totals. It’s been a rather wet spring, and the saturated soil was one of the culprits for this flooding. Based on the high-resolution model guidance for Wednesday, the heaviest of rainfall is expected to be found in southeastern Pennsylvania with lighter totals to the south. There will still be some pockets of heavier rain south of the Mason-Dixon Line. Flooding may persist in Frederick while the threat ramps up in that portion of Pennsylvania.

Author

Jackson is COO and Head of Content and Strategy of WeatherOptics. He also designed his own website and created the local company, Jackson's Weather. He has been forecasting the weather for southwestern Connecticut since March of 2015. He is currently a senior in high school and will major in Meteorology and Broadcast Journalism at the University of Miami in Fall 2018.

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