Flash Flood — New London, Connecticut

2023-07-10 · near New London, New London, Connecticut

Event narrative

Several roads are closed in urban areas of New London including Broad St, Bank St, Garfield Ave, and Shaw St. Spotter reports 2 inches of rain in 2 hours.

Wider weather episode

A stalled frontal boundary remained over the area which produced multiple rounds of torrential rainfall form heavy thunderstorms from July 9th through July 10th. CAPE values of 2500 to 3500 J/kg and PWAT values of near 1.8 allowed heavy thunderstorm development to produce rainfall rates of 2-3 inches per hour at times. There were parts of the area that receive anywhere from 3-5 inches of rain in a several hour period.

View location on OpenStreetMap → (41.3600, -72.1000)

Source: NOAA Storm Events Database, event_id 1122299. Narrative written by the NWS forecast office that issued the report.