Fueled by an abundance of moisture, a thunderstorm complex developed during peak heating over the Pearl River basin. Aided by a very weak steering flow, the complex moved very slowly over portions of urbanized areas such as Slidell and eventually metro New Orleans, where flash flooding occurred during the afternoon and evening. The complex finally weakened during the evening as it became cold-pool dominant.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:38:00 to 04-SEP-23 14:38:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooded street report at Polk Street and West End Blvd.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:35:00 to 04-SEP-23 14:35:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooded street report at Ursulines Avenue and N Claiborne Avenue.

Flash Flood in ST. TAMMANY, LOUISIANA
From 04-SEP-23 12:30:00 to 04-SEP-23 14:30:00 (CST-6)
Location: SLIDELL
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Photo of water covered roads on Gause Blvd. Water up to car doors.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:45:00 to 04-SEP-23 14:45:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Video of deep water covering roads on Memphis and Chapelle in Lakeview.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 13:00:00 to 04-SEP-23 15:00:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Photo of water up to the top of a fully submerged car on Canal Blvd near the Railroad Trussel.

Flash Flood in ST. TAMMANY, LOUISIANA
From 04-SEP-23 11:02:00 to 04-SEP-23 13:02:00 (CST-6)
Location: SLIDELL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Street flooding verified by photo on social media at Gause and Ninth in Slidell.

Flash Flood in ST. TAMMANY, LOUISIANA
From 04-SEP-23 11:36:00 to 04-SEP-23 13:36:00 (CST-6)
Location: SLIDELL ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Northbound lane of Airport Road partially impassable from flooding rain.

Flash Flood in ST. TAMMANY, LOUISIANA
From 04-SEP-23 11:49:00 to 04-SEP-23 13:49:00 (CST-6)
Location: SLIDELL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Photo relayed of flooded roadways and report of people moving vehicles due to ongoing flooding.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:00:00 to 04-SEP-23 14:00:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Report of flooded underpass at Canal Blvd with roads impassable in areas.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:13:00 to 04-SEP-23 14:13:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Gentilly and 610 Underpass closed due to flood waters.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:06:00 to 04-SEP-23 14:06:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooded street report at N Norman C Francis Parkway at Canal Street.

Flash Flood in ST. TAMMANY, LOUISIANA
From 04-SEP-23 12:14:00 to 04-SEP-23 14:14:00 (CST-6)
Location: SLIDELL ARPT
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Photo via social media of flooded roadways and a car halfway submerged on Alisa Drive in the Belair Subdivision in Slidell.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:15:00 to 04-SEP-23 14:15:00 (CST-6)
Location: VIEUX CARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

I-10 in both directions closed due to high water at Metairie Road.

Flash Flood in ORLEANS, LOUISIANA
From 04-SEP-23 12:35:00 to 04-SEP-23 14:35:00 (CST-6)
Location: NEW ORLEANS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report of street flooding at S Carrolton Avenue and Tulane Avenue.