Jul 21, 2023
A cluster of severe storms developed across Massachusetts on the afternoon of the 21st. The heaviest rainfall persisted south of the New Hampshire and Massachusetts state line, however one storm edged into the Nashua area. Rainfall rates were extreme between 2 and 4 inches per hour leading to urban flooding. The heavy rain also occurred following an extremely wet July where the ground and drainage systems were already saturated. In addition, severe wind gusts and large hail caused damage west a
Source: NOAA National Weather Service Storm Events Database (event 1124048). 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.