May 15, 2018
A cold front over the Great Lakes moved through Southern New England during the late afternoon and early night of May 15th. The air mass over Massachusetts was very warm and humid, and as the cold front moved into this air it generated numerous thunderstorms. Some thunderstorms produced damaging wind gusts, large hail, and heavy downpours.
Source: NOAA National Weather Service Storm Events Database (event 748719). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Suffolk County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.