Aug 13, 2020
A cold front just south of the region gradually retreated back to the north during the morning hours. This boundary served as a focus for the development of showers and thunderstorms. With weak flow aloft and a moist environment, this resulted in flash flooding across portions of northern Nassau County.
Source: NOAA National Weather Service Storm Events Database (event 915354). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Nassau County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.