Flash Flood — Baltimore, Maryland

2018-05-27 · near Chadwick Manor, Baltimore, Maryland

Event narrative

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.

Wider weather episode

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.

View location on OpenStreetMap → (39.2710, -76.7354)

Source: NOAA Storm Events Database, event_id 760892. Narrative written by the NWS forecast office that issued the report.