Jul 16, 2023
A deep longwave trough, south-southwest flow at all levels, and the development of a QLCS (quasi-linear convective system) created all the ingredients for a widespread and susbstantial flash flood event across much of southern New England. For a few hours during the late morning, helicity values were high and a brief tornado formed along the QLCS in North Brookfield, MA.
Source: NOAA National Weather Service Storm Events Database (event 1118104). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Norfolk County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.