Flash Flood — Plymouth, Massachusetts

2023-07-16 · near Kent Park, Plymouth, Massachusetts

Event narrative

In Marshfield, Winthrop Dr was flooded and impassable.

Wider weather episode

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.

View location on OpenStreetMap → (42.1080, -70.6775)

Source: NOAA Storm Events Database, event_id 1118106. Narrative written by the NWS forecast office that issued the report.