A cluster of thunderstorms developed in Mexico along the Texas/Mexico border west of San Antonio on the evening of April 14th. This cluster was able to maintain continuity to at least some degree all the way across Texas. As it moved into western Louisiana on the morning of the 15th, it was tracking into an environment of increased instability. This aided in the organization of these storms into a Mesoscale Convective Complex (MCS). As the MCS raced across southeast Louisiana, it produced severe winds across portions of the local coastal waters.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 15-APR-23 11:58:00 to 15-APR-23 11:58:00 (CST-6)
Location: NORTH LAKE PONTCHARTRAIN
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station XMVL Mandeville measured wind gust of 42 mph or 36 knots.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 15-APR-23 12:07:00 to 15-APR-23 12:07:00 (CST-6)
Location: MID LAKE PONTCHARTRAIN
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station XPTN Pontchartrain Causeway measured wind gust of 64 mph or 56 knots.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 15-APR-23 12:53:00 to 15-APR-23 12:53:00 (CST-6)
Location: BAY WAVELAND YACHT CLUB STATION (WYCM6)
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Weather station measured wind gust of 48 mph or 42 knots.

Marine Thunderstorm Wind in LAKE BORGNE, GULF OF MEXICO
From 15-APR-23 12:54:00 to 15-APR-23 12:54:00 (CST-6)
Location: SHELL BEACH STATION (SHBL1)
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Buoy station SHBL1 Shell Beach, LA recorded a wind gust of 41 mph or 36 knots.

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 15-APR-23 13:15:00 to 15-APR-23 13:15:00 (CST-6)
Location: MAIN PASS 289 AWOS (KVKY)
Magnitude: 46.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

AWOS station KVKY Main Pass 289c measured a wind gust of 53 mph or 46 knots.

Marine Thunderstorm Wind in COASTAL WATERS FROM STAKE ISLAND LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER FROM 20 TO 60 NM, GULF OF MEXICO
From 15-APR-23 13:20:00 to 15-APR-23 13:20:00 (CST-6)
Location: MISSISSIPPI CANYON - NAKIKA (KIKT)
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station KIKT Nakika Subsea development platform measured wind gust of 46 mph or 40 knots.

Marine Thunderstorm Wind in COASTAL WATERS FROM STAKE ISLAND LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER FROM 20 TO 60 NM, GULF OF MEXICO
From 15-APR-23 13:20:00 to 15-APR-23 13:20:00 (CST-6)
Location: MISSISSIPPI CANYON - NAKIKA (KIKT)
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

AWOS station KDSF Mississippi Canyon measured wind gust of 51 mph or 44 knots.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 15-APR-23 13:21:00 to 15-APR-23 13:21:00 (CST-6)
Location: SHIP ISLAND PASS STATION (SIPM6)
Magnitude: 48.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station XSHI Ship Island measured wind gust of 55 mph or 48 knots.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 15-APR-23 13:54:00 to 15-APR-23 13:54:00 (CST-6)
Location: PETIS BOIS ISLAND STATION (PTBM6)
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station PTBM6 Petit Bois measured wind gust of 43 mph or 37 knots.