Flash Flood — Suffolk, Massachusetts

2023-08-18 · near Grove Hall, Suffolk, Massachusetts

Event narrative

In Dorchester, portions of Southern Ave were flooded and impassable.

Wider weather episode

A high amplitude, negatively tilted trough moving across the Great Lakes and into New England along with cold and warm front provided strong forcing which resulted in flooding, wind damage, and 5 tornadoes. In the warm sector dewpoints surged into the mid 70s with PWATs near 2 inches which led to torrential downpours. Tornadoes occurred in Scotland, Ct, Scituate, RI, North Attleboro, MA, Stoughton, MA, and Weymouth, MA. The tornadoes ranged in intensity from EF-0 to EF-2.

View location on OpenStreetMap → (42.2901, -71.0755)

Source: NOAA Storm Events Database, event_id 1120180. Narrative written by the NWS forecast office that issued the report.