Jun 30, 2025
A boundary stalled across northeast Maryland and interacted with the Chesapeake Bay breeze to result in a nearly stationary thunderstorm across Baltimore and Harford counties for much of the late afternoon and evening. Localized rainfall amounts of two to six inches were observed, with instances of flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 1259481). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Harford County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.