A cold front that was moving south across Mississippi and Louisiana on 6/9 moved across portions of the the local coastal waters. Sufficient instability was still in place from the previous afternoon to support severe thunderstorms along the boundary. It then stalled across the coastal waters near the mouth of the Mississippi River on the morning of the 10th. Not long after stalling, it began to lift back north as a warm front. As it did so, storms began training across New Orleans metro, resulting in flash flooding. Moving into the afternoon hours, the warm front continued north. Daytime heating destabilized the atmosphere even more within the warm sector, south of the front. This provided an environment which supported severe thunderstorms with damaging wind gusts over both land and marine areas.

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 10-JUN-22 05:40:00 to 10-JUN-22 05:40:00 (CST-6)
Location: LUKE OFFSHORE TEST SITE STATION (42040)
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Buoy 42040 measured a marine thunderstorm wind gust of 37 knots or 43 mph.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 10-JUN-22 11:07:00 to 10-JUN-22 11:07:00 (CST-6)
Location: MID LAKE PONTCHARTRAIN
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Lakefront Airport measured a thunderstorm wind gust of 36 knots or 41 mph.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 10-JUN-22 10:05:00 to 10-JUN-22 10:05:00 (CST-6)
Location: NORTH LAKE PONTCHARTRAIN
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Mandeville Lakefront measured a thunderstorm wind gust of 43 knots or 49 mph.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 10-JUN-22 08:52:00 to 10-JUN-22 08:52:00 (CST-6)
Location: SHIP ISLAND PASS STATION (SIPM6)
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Ship Island measured a thunderstorm wind gust of 39 knots or 45 mph.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 10-JUN-22 11:37:00 to 10-JUN-22 11:37:00 (CST-6)
Location: SHIP ISLAND PASS STATION (SIPM6)
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Ship Island measured a thunderstorm wind gust of 41 knots or 47 mph.

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 10-JUN-22 06:00:00 to 10-JUN-22 06:00:00 (CST-6)
Location: LUKE OFFSHORE TEST SITE STATION (42040)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Buoy 42040 measured a marine thunderstorm wind gust of 51 knots or 59 mph.

Waterspout in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 10-JUN-22 07:39:00 to 10-JUN-22 07:39:00 (CST-6)
Location: NEW CANAL STATION (NWCL1)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A waterspout was reported via picture on social media.

Waterspout in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 10-JUN-22 07:53:00 to 10-JUN-22 07:53:00 (CST-6)
Location: LKFRNT ARPT NEW
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A waterspout was reported northwest of Lakefront Airport.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 10-JUN-22 14:25:00 to 10-JUN-22 14:25:00 (CST-6)
Location: NORTH LAKE PONTCHARTRAIN
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Mandeville Lakefront measured a thunderstorm wind gust of 43 knots or 49 mph.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 10-JUN-22 14:52:00 to 10-JUN-22 14:52:00 (CST-6)
Location: MID LAKE PONTCHARTRAIN
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Mandeville Lakefront measured a thunderstorm wind gust of 41 knots or 47 mph.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 10-JUN-22 15:22:00 to 10-JUN-22 15:22:00 (CST-6)
Location: SHIP ISLAND PASS STATION (SIPM6)
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow mesonet at Ship Island measured a thunderstorm wind gust of 36 knots or 41 mph.