Flash Flood in Baltimore County, Maryland

Flash Flood May 27, 2018 · Baltimore County, Maryland

$8.6M

Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Widespread flash flooding in downtown Catonsville along Frederick Road. Roads flooded and water entering buildings. Flooding was reported in local schools along with 12 swift water rescues.

The wider storm

A cold front sagged into Maryland during the afternoon of May 27th. Heavy rain trained to the northeast of Baltimore early in the afternoon, causing flash flooding. Then, later in the afternoon, the line completely stalled just west of Baltimore, producing 6-12 inches of rain in a very short period of time. Catastrophic flash flooding occurred in the Ellicott City and Catonsville areas, with significant flooding also observed in other nearby areas. Stream flooding continued through the next morning.

Began near Chadwick Manor (39.2710, -76.7354).

Source: NOAA Storm Events Database, event 760892. Narratives are written by the National Weather Service forecast office that issued the report.

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