20-inch rainfall observed during this year's flooding in Tennessee sets state record

More than 20 people were killed during August flash flooding near Waverly

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A mangled SUV is seen filled with debris and surrounded by water Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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A man looks over the scene where a pickup truck is partially submerged in water Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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Sticks are piled together after floodwaters receeded Aug. 24, 2021, in Waverly, Tennessee. (Robert Ray/FOX Weather)

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Floodwater and piles of rock are seen in front of a pile of debris Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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Workers use equipment to remove debris from a yard Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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Boats are mixed in with a pile of debris Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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At least 6 boats are seen piled on shore Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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A pickup is covered in sediment in front of a pile of debris Aug. 24, 2021, after a flash flood in Waverly, Tennessee. (Robert Ray/FOX Weather)

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Damage in Waverly, Tennessee, is seen Aug. 24, 2021 after a flash flood that killed 22 people. (FOX News)

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Boats were violently pushed and spun across rapid waters. (FOX Weather)

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Dozens of homes are in ruin, some smoldering in flames due to the deadly Tennessee flood. (FOX Weather)

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Cars are seen stacked among the debris Aug. 22, 2021, after a deadly flash flood in Waverly, Tennessee. (Twitter/GovBillLee)

The more than 20 inches of rain that was recorded at a weather observation station in Middle Tennessee during this summer’s deadly flash flooding set a record for the state.

On Aug. 21, the wastewater treatment plant in McEwen, Tennessee, recorded 20.73 inches of rain in a 24-hour period.

The National Oceanic and Atmospheric Administration’s State Climate Extremes Committee verified the reading and it constitutes a state record for rainfall in a 24-hour period, according to a report published Monday. It dwarfs the previous state record of 13.6 inches set in Milan, Tennessee, on Sept. 13, 1982.

The heaviest rain during this year’s storm fell between Waverly and McEwen, about 60 miles west of Nashville. The torrential rain caused flash flooding that killed at least 22 people.

FOX 17 in Nashville reported that the flood is estimated to have caused $23.9 million in damage.

The Tennessee Emergency Management Agency has set up a special page on its website dedicated to those needing assistance in the storm’s aftermath at tn.gov/tema.