A residual boundary left over from pre-dawn storms was located near the Tennessee/Mississippi state line during the morning hours of July 21, 2023. By early afternoon a progressive mid-level trough moved into the region on northwest flow aloft. Along and south of the boundary the airmass became strongly unstable with mixed-layer convective available potential energy values over 4000 J/kg and downdraft convective available potential energy values exceeding 1000 J/kg.  The approaching mid-level trough reignited storms along the boundary. A bow echo formed over eastern Arkansas during the early afternoon and raced east along the Tennessee/Mississippi border resulting in numerous damaging wind reports including widespread power outages in the Memphis Metropolitian area. This was the fourth time in four weeks that the Memphis area suffered widespread power outages from damaging wind. As storms moved east they expanded southward across northeast Mississippi.

Flash Flood in MARSHALL, MISSISSIPPI
From 21-JUL-23 13:15:00 to 21-JUL-23 15:15:00 (CST-6)
Location: CAYCE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dogwood Road was flooded.

Thunderstorm Wind in MARSHALL, MISSISSIPPI
From 21-JUL-23 12:59:00 to 21-JUL-23 13:04:00 (CST-6)
Location: CAYCE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was knocked down on Hilliard Road in the Cayce area.

Thunderstorm Wind in LEE, MISSISSIPPI
From 21-JUL-23 14:34:00 to 21-JUL-23 14:39:00 (CST-6)
Location: SALTILLO
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A tree was snapped near a pool in Saltillo.

Thunderstorm Wind in LEE, MISSISSIPPI
From 21-JUL-23 14:47:00 to 21-JUL-23 14:52:00 (CST-6)
Location: TUPELO
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Straight-line winds cause roof damage to a convenience store in Tupelo.

Thunderstorm Wind in ITAWAMBA, MISSISSIPPI
From 21-JUL-23 14:57:00 to 21-JUL-23 15:02:00 (CST-6)
Location: FULTON ITAWANBA CO A
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Large tree branches were snapped in half near Dulaney Branch Hill.

Thunderstorm Wind in MONROE, MISSISSIPPI
From 21-JUL-23 15:40:00 to 21-JUL-23 15:45:00 (CST-6)
Location: QUINCY
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was knocked down along Highway 278.

Thunderstorm Wind in MONROE, MISSISSIPPI
From 21-JUL-23 15:30:00 to 21-JUL-23 15:35:00 (CST-6)
Location: ABERDEEN STINSON ARP
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was knocked down on Coontail Road.

Thunderstorm Wind in UNION, MISSISSIPPI
From 21-JUL-23 14:09:00 to 21-JUL-23 14:14:00 (CST-6)
Location: GLENFIELD
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

A large tree was snapped and fell on a home in New Albany.

Thunderstorm Wind in LEE, MISSISSIPPI
From 21-JUL-23 14:47:00 to 21-JUL-23 14:57:00 (CST-6)
Location: FLOWERDALE
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: State Official

Multiple trees were knocked down throughout Lee County.