Strong low pressure moving out of the Gulf of Mexico produced two waves of severe weather across southeast Louisiana and the adjacent coastal waters. The first round was associated with a warm front on the afternoon of the 3rd, the second with a cold front early in the morning of the 4th.

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 04-MAY-17 00:00:00 to 04-MAY-17 00:00:00 (CST-6)
Location: GRAND ISLE STATION (GISL1)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Grand Isle Blocks station GRBL1 reported a wind gust to 65 knots in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM PORT FOURCHON LOUISIANA TO LOWER ATCHAFALAYA RIVER LOUISIANA OUT 20 NM, GULF OF MEXICO
From 04-MAY-17 00:00:00 to 04-MAY-17 00:00:00 (CST-6)
Location: SOUTH TIMBALIER STATION (SPLL1)
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

South Timbalier Station SPLL1 reported a wind gust to 45 mph in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 04-MAY-17 00:36:00 to 04-MAY-17 00:36:00 (CST-6)
Location: PILOTS STATION (PSTL1)
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Marine Thunderstorm Wind in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 04-MAY-17 00:48:00 to 04-MAY-17 00:48:00 (CST-6)
Location: PILOTS STATION (PSTL1)
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 04-MAY-17 01:35:00 to 04-MAY-17 01:35:00 (CST-6)
Location: MAIN PASS 289 AWOS (KVKY)
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 04-MAY-17 00:55:00 to 04-MAY-17 00:55:00 (CST-6)
Location: MISSISSIPPI CANYON OIL PLATFORM 311A (KMDJ)
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 04-MAY-17 02:10:00 to 04-MAY-17 02:10:00 (CST-6)
Location: NDBC BUOY 42040
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Bouy 42040, the Luke Offshore Test Platform, reported a 39 knot wind gust in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 01-MAY-17 02:15:00 to 01-MAY-17 02:15:00 (CST-6)
Location: MAIN PASS 289 AWOS (KVKY)
Magnitude: 49.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Station KVKY in Main Pass Block 289C reported a wind gust to 49 knots in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 03-MAY-17 23:20:00 to 03-MAY-17 23:20:00 (CST-6)
Location: PORT FOURCHON STATION (PTFL1)
Magnitude: 48.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The AWOS at Port Fourchon Heliport KXPY reported a wind gust of 48 knots. Anemometer height is at 30 meters.

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 03-MAY-17 23:48:00 to 03-MAY-17 23:48:00 (CST-6)
Location: GRAND ISLE STATION (GISL1)
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Marine Thunderstorm Wind in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 03-MAY-17 23:55:00 to 03-MAY-17 23:55:00 (CST-6)
Location: PORT FOURCHON STATION (PTFL1)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 04-MAY-17 02:20:00 to 04-MAY-17 02:20:00 (CST-6)
Location: NDBC BUOY 42040
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Marine Thunderstorm Wind in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 04-MAY-17 00:55:00 to 04-MAY-17 00:55:00 (CST-6)
Location: MAIN PASS 140 AWOS (KMIS)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 03-MAY-17 13:31:00 to 03-MAY-17 13:31:00 (CST-6)
Location: BAYOU LABRANCH STATION (LABL1)
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 36 knot wind gust was reported at New Orleans Armstrong Airport in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 03-MAY-17 15:51:00 to 03-MAY-17 15:51:00 (CST-6)
Location: MAIN PASS 140 AWOS (KMIS)
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

AWOS Station KMIS on an oil platform in Main Pass Block 140B reported a 41 knot wind in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM PORT FOURCHON LOUISIANA TO LOWER ATCHAFALAYA RIVER LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 03-MAY-17 23:35:00 to 03-MAY-17 23:35:00 (CST-6)
Location: SHIP SHOAL OIL PLATFORM (KSPR)
Magnitude: 45.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Station KSPR in Ship Shoal Block 178 reported a wind gust to 45 knots in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 04-MAY-17 01:42:00 to 04-MAY-17 01:42:00 (CST-6)
Location: PILOTS STATION (PSTL1)
Magnitude: 81.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 81 knots or 93 mph was recorded at the NOAA Pilot Station C-MAN station. Anemometer height is 23.9 meters above the water.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 03-MAY-17 13:02:00 to 03-MAY-17 13:02:00 (CST-6)
Location: LKFRNT ARPT NEW
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

ASOS at Lakefront Airport reported a 39 knot wind gust in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 03-MAY-17 15:48:00 to 03-MAY-17 15:48:00 (CST-6)
Location: PILOTS STATION (PSTL1)
Magnitude: 48.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

CMAN station PSTL1 reported a 48 knot wind gust in a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM PORT FOURCHON LOUISIANA TO LOWER ATCHAFALAYA RIVER LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 03-MAY-17 23:15:00 to 03-MAY-17 23:15:00 (CST-6)
Location: SHIP SHOAL OIL PLATFORM (KSPR)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Ship Shoal Block 178 Oil Platform AWOS KSPR reported a 53 knot wind gust during a thunderstorm.

Marine Thunderstorm Wind in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 03-MAY-17 16:35:00 to 03-MAY-17 16:35:00 (CST-6)
Location: MAIN PASS 289 AWOS (KVKY)
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Main Pass Block 280 AWOS reported a 42 knot wind gust in a thunderstorm.

Marine Thunderstorm Wind in LAKE PONCHARTRAIN AND LAKE MAUREPAS, GULF OF MEXICO
From 03-MAY-17 20:08:00 to 03-MAY-17 20:08:00 (CST-6)
Location: LKFRNT ARPT NEW
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Lakefront Airport reported a 36 knot wind gust during a thunderstorm.