A stationary frontal boundary stalled across the central portions of Middle Tennessee from Saturday, September 12, 2020 into Sunday, September 13, 2020. Persistent southwest flow aloft brought copious amounts of Gulf of Mexico moisture northward and interacted with this boundary, causing a roughly 7 hour period of nearly continuous heavy rain and thunderstorms. Rainfall totals reached 5 to over 8 in some locations, resulting in major flash flooding and river flooding along a narrow corridor across Lawrence, Lewis, Maury, Williamson, Davidson, Rutherford, Wilson, Sumner, and Macon Counties. Numerous water rescues were conducted and many homes and businesses were flooded, with some of the worst flooding occurring in the Mill Creek basin across northeast Williamson County and southeast Davidson County. In fact, Mill Creek at Nolensville reached 19.53 feet, which is the second highest crest ever at that location - only surpassed by the record of 22.53 feet in the May 2010 flood.

Flash Flood in SUMNER, TENNESSEE
From 13-SEP-20 10:50:00 to 13-SEP-20 10:50:00 (CST-6)
Location: ROGANA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flood waters covered the road at Rock Springs Road and Rogana Road.

Flash Flood in WILLIAMSON, TENNESSEE
From 13-SEP-20 07:15:00 to 13-SEP-20 07:15:00 (CST-6)
Location: NOLENSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Waller Road was closed due to high water.

Flash Flood in LAWRENCE, TENNESSEE
From 13-SEP-20 11:00:00 to 13-SEP-20 11:00:00 (CST-6)
Location: BARNESVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Lawrence County Emergency Management reported on their Facebook page that numerous agencies were responding to flash flooding across northern Lawrence County. Numerous trees fell from flood waters and at least one water rescue occurred.

Flash Flood in SUMNER, TENNESSEE
From 13-SEP-20 09:00:00 to 13-SEP-20 09:00:00 (CST-6)
Location: KANSAS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Desha Creek flooded Wrights Lance and the road is impassable.

Flash Flood in MAURY, TENNESSEE
From 13-SEP-20 09:12:00 to 13-SEP-20 09:12:00 (CST-6)
Location: SPRING HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Miles Johnson Parkway at Duplex Road was flooded and closed.

Flash Flood in WILSON, TENNESSEE
From 13-SEP-20 09:37:00 to 13-SEP-20 09:37:00 (CST-6)
Location: MT JULIET
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Old Lebanon Dirt Road was closed 1.5 miles west of Mount Juliet Road due to high water.

Flash Flood in WILSON, TENNESSEE
From 13-SEP-20 09:41:00 to 13-SEP-20 09:41:00 (CST-6)
Location: VESTA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Flood waters were three feet deep at the intersection of Couchville Pike and McCrary Road.

Flash Flood in MAURY, TENNESSEE
From 13-SEP-20 10:05:00 to 13-SEP-20 10:05:00 (CST-6)
Location: SANDY HOOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple water rescues were conducted from homes around West Sheepneck Road at Lawrenceburg Highway.

Flash Flood in MAURY, TENNESSEE
From 13-SEP-20 10:05:00 to 13-SEP-20 10:05:00 (CST-6)
Location: GODWIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple roads were flooded and closed in Columbia.

Flash Flood in DAVIDSON, TENNESSEE
From 13-SEP-20 08:00:00 to 13-SEP-20 08:00:00 (CST-6)
Location: WRENCOE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water rescue ongoing at Culbertson Road.

Flash Flood in WILLIAMSON, TENNESSEE
From 13-SEP-20 08:00:00 to 13-SEP-20 08:00:00 (CST-6)
Location: NOLENSVILLE
Flood cause: Heavy Rain
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Major flash flooding affected the Nolensville area. Several homes, businesses, and other buildings were flooded. Some of the buildings flooded included the Williamson County Parks and Recreation Center, located at 7250 Nolensville Road, which suffered damage estimated at $321,663.47; the Mill Creek Church of Christ at 7260 Nolensville Road; and the historic Nolensville School at 7248 Nolensville Road. Numerous roads were also flooded and closed including Baronswood Drive, Kidd Road, Nolensville Road, Sunset Road, York Road, Old Clovercroft Road, Summerlyn Drive, Oldham Drive, Concord Road, Rocky Springs Road, Rocky Ford Road, Stonebrook Blvd., Dortch Lane, McFarlin Road, Fly Road, and Brittain Lane. The Brittain Lane bridge over Mill Creek was damaged by the flooding and indefinitely closed. Five water rescues were conducted in the area with many vehicles submerged.

Flash Flood in WILSON, TENNESSEE
From 13-SEP-20 11:18:00 to 13-SEP-20 11:18:00 (CST-6)
Location: LEBANON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Highway 231 was flooded and closed south of Lebanon Square.

Flash Flood in MAURY, TENNESSEE
From 13-SEP-20 12:45:00 to 13-SEP-20 12:45:00 (CST-6)
Location: RIDLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous photos from Maury County EMA showed flash flooding near Mount Pleasant. A bridge over Big Bigby Creek at Canaan Road and Ashwood Road was flooded, as were Magnolia Road and Sugar Creek Road.

Flash Flood in SUMNER, TENNESSEE
From 13-SEP-20 09:15:00 to 13-SEP-20 09:15:00 (CST-6)
Location: ROCKLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Old Shackle Island Road was closed due to flooding.

Flash Flood in MAURY, TENNESSEE
From 13-SEP-20 09:18:00 to 13-SEP-20 09:18:00 (CST-6)
Location: COLUMBIA MAURY ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roads were flooded and closed around Mount Pleasant.

Flash Flood in RUTHERFORD, TENNESSEE
From 13-SEP-20 09:48:00 to 13-SEP-20 09:48:00 (CST-6)
Location: LA VERGNE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Significant flash flooding caused several shipping containers at the Bridgestone Plant to float to Bridgestone Parkway.

Flash Flood in DAVIDSON, TENNESSEE
From 13-SEP-20 09:55:00 to 13-SEP-20 09:55:00 (CST-6)
Location: ANTIOCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

I-24 was closed at Bell Road due to water over the interstate around Blue Hole Road.

Flash Flood in RUTHERFORD, TENNESSEE
From 13-SEP-20 08:29:00 to 13-SEP-20 08:29:00 (CST-6)
Location: SANDHILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Flood waters surrounded several homes on Mercury Drive in La Vergne.

Heavy Rain in WILLIAMSON, TENNESSEE
From 13-SEP-20 12:00:00 to 13-SEP-20 12:00:00 (CST-6)
Location: NOLENSVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS station Nolensville 2.4 SW measured a storm total of 6.74 inches of rain.

Flash Flood in RUTHERFORD, TENNESSEE
From 13-SEP-20 08:30:00 to 13-SEP-20 08:30:00 (CST-6)
Location: SMYRNA
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Photos showed Wolverine Trail near Sam Ridley Parkway was flooded and impassable, with one car submerged in the flood waters.

Flash Flood in SUMNER, TENNESSEE
From 13-SEP-20 10:05:00 to 13-SEP-20 10:05:00 (CST-6)
Location: GALLATIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Santa Monica Blvd. and Hollywood Blvd. were flooded with water approaching homes.

Flash Flood in LAWRENCE, TENNESSEE
From 13-SEP-20 10:45:00 to 13-SEP-20 10:45:00 (CST-6)
Location: BARNESVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple water rescues ongoing in the northern part of Lawrence County.

Heavy Rain in WILLIAMSON, TENNESSEE
From 13-SEP-20 11:00:00 to 13-SEP-20 11:00:00 (CST-6)
Location: MALLORYS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS station Brentwood 1.9 ESE measured a storm total of 8.25 inches of rain.