Jul 21, 2008
A few showers and thunderstorms developed on a sea breeze boundary. There was enough moisture in the atmosphere that heavy rain accompanied one of these thunderstorms in Nashua. One and a half inches of rain fell in half an hour at Nashua Memorial Airport. This resulted in flash flooding across portions of Nashua.
Source: NOAA National Weather Service Storm Events Database (event 125969). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Hillsborough County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.