Flash Flood in Chemung County, New York

Flash Flood August 28, 2023 · Chemung County, New York

$10K

Damage as recorded

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

What the National Weather Service wrote

Water from two small creeks rushed rapidly off of a nearby hill and significantly flooded both lanes of I-86 near the Horseheads interchange. The interstate remained closed until the following morning.

The wider storm

A weak disturbance moving through the upper atmosphere across southern New York combined with an unusually warm and moist airmass to produce several rounds of scattered showers and thunderstorms over Chemung county. A very localized total of 2 to 3 inches of rain fell just to the west of Elmira, NY. The runoff from this heavy rain overwhelmed several small streams near the Horseheads exchange along I-86. The Interstate was severely flooded and remained closed until the morning of the 29th.

Began near Elmira Hgts (42.1400, -76.8100).

Source: NOAA Storm Events Database, event 1131178. Narratives are written by the National Weather Service forecast office that issued the report.

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