On the overnight hours on April 28th and early morning hours of April 29th, a squall line produce high winds from thunderstorms across marine areas offshore coastal southeastern Louisiana and southern Mississippi.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 29-APR-20 06:37:00 to 29-APR-20 06:37:00 (CST-6)
Location: MID LAKE PONTCHARTRAIN
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet Station reported a measured peak wind gust of 35 knots or 40 mph.

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 28-APR-20 21:29:00 to 28-APR-20 21:29:00 (CST-6)
Location: PORT FOURCHON STATION (PTFL1)
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

C-Man Station reported a measured peak wind gust of 34 knots or 39 mph.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 29-APR-20 06:54:00 to 29-APR-20 06:54:00 (CST-6)
Location: LKFRNT ARPT NEW
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

ASOS Station KNEW reported a measured peak wind gust of 52 knots or 60 mph.

Marine Thunderstorm Wind in LAKE BORGNE, GULF OF MEXICO
From 28-APR-20 21:42:00 to 28-APR-20 21:42:00 (CST-6)
Location: SHELL BEACH STATION (SHBL1)
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

C-Man site 2 miles NNE of Yscloskey measured a peak wind gust of 38 knots or 44 mph.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 28-APR-20 19:47:00 to 28-APR-20 19:47:00 (CST-6)
Location: MID LAKE PONTCHARTRAIN
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Weatherflow mesonet station on the Lake Pontchartrain Causeway reported a 39 mph wind gust during a thunderstorm.

Marine Thunderstorm Wind in LAKE BORGNE, GULF OF MEXICO
From 29-APR-20 07:54:00 to 29-APR-20 07:54:00 (CST-6)
Location: SHELL BEACH STATION (SHBL1)
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

C-Man station 2 miles NNE of Yscloskey,LA reported a measured peak wind gust of 35 knots or 40 mph.

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 29-APR-20 08:24:00 to 29-APR-20 08:24:00 (CST-6)
Location: GRAND ISLE STATION (GISL1)
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

C-Man Station 1 mile SSE of Grand Isle measured a peak wind gust of 35 knots or 40 mph.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 28-APR-20 21:00:00 to 28-APR-20 21:00:00 (CST-6)
Location: LKFRNT ARPT NEW
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

ASOS station KNEW measured a peak wind gust of 37 knots or 43 mph.

Marine Thunderstorm Wind in MISSISSIPPI SOUND, GULF OF MEXICO
From 29-APR-20 07:18:00 to 29-APR-20 07:18:00 (CST-6)
Location: BAY WAVELAND YACHT CLUB STATION (WYCM6)
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

C-MAN Station reported a measured peak wind gust of 34 knots or 39 mph.