Aug 9, 2012
The combination of a weak cold front and upper air disturbance triggered a cluster of thunderstorms that tracked through central New Jersey during the afternoon and evening of the 9th. Torrential downpours affected portions of Mercer and Middlesex counties, producing areas of flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 410067). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Middlesex County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.