Flash Flood in Sequatchie County, Tennessee

Flash Flood October 6, 2021 · Sequatchie County, Tennessee

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

What the National Weather Service wrote

Numerous roads closed across the county. Evacuations underway along Branch Road. A CoCoRAHS site reported 6.25 inches of rain between noon and midnight 6 NNW of Dunlap. This is roughly the same area impacted by flooding a few weeks ago.

The wider storm

A deep 500 MB low over the lower Mississippi Valley, and associated surface low that was nearly stationary beneath it, produced a humid tropical air mass over the area. Convection anchored over the southern Plateau and produced flash flooding in areas that flooded just a few weeks earlier.

Began near Dunlap (35.4335, -85.3528).

Source: NOAA Storm Events Database, event 987562. Narratives are written by the National Weather Service forecast office that issued the report.

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