Flash Flood in New London County, Connecticut

Flash Flood July 16, 2023 · New London County, Connecticut

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Bank Street impassible at the intersection of Shaw Street due to flooding.

The wider storm

A stationary front near the area forced torrential thunderstorms in a tropical airmass resulting in widespread flash flooding in CT. The first round of thunderstorms occurred early in the morning on July 16th. Another round of thunderstorms occurred later in the afternoon. The tropical airmass had CAPE values 1500 - 2000 J/kg with PWATs 2.2-2.4 inches. The torrential thunderstorms produced rainfall rates as much as 3 inches an hour. Rainfall amounts totaled a widespread 2-4 inches across Connecticut with localized spots seeing as much as 5 inches of rain.

Began near New London (41.3500, -72.1000).

Source: NOAA Storm Events Database, event 1122717. Narratives are written by the National Weather Service forecast office that issued the report.

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