A mesoscale convective system that moved across the northwestern Gulf of Mexico during the evening hours on April 18 into the early morning hours on April 19. Numerous offshore oil rig platforms measured wind gusts between 40 and 70 mph.

Marine Thunderstorm Wind in COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM, GULF OF MEXICO
From 18-APR-09 17:50:00 to 18-APR-09 17:50:00 (CST-6)
Location: MOUTH OF SABINE RIVER
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 54 mph was measured by an oil rig platform in West Cameron Block 17.

Marine Thunderstorm Wind in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 18-APR-09 20:30:00 to 18-APR-09 20:30:00 (CST-6)
Location: WHITE LAKE
Magnitude: 39.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 45 mph was reported by an oil rig platform in East Cameron Block 23.

Marine Thunderstorm Wind in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 18-APR-09 21:00:00 to 18-APR-09 21:00:00 (CST-6)
Location: WHITE LAKE
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 49 mph was reported by an oil rig platform in Vermilion Block 67.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 19-APR-09 03:30:00 to 19-APR-09 03:30:00 (CST-6)
Location: ATCHAFALAYA BAY
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 60 mph was measured by an oil rig platform in Eugene Island Block 105.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 18-APR-09 23:45:00 to 18-APR-09 23:45:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 68 mph was reported by an oil rig platform in South Marsh Island Block 243.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA 20 TO 60NM, GULF OF MEXICO
From 19-APR-09 01:00:00 to 19-APR-09 01:00:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 43.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 50 mph was reported by an oil rig platform in South Marsh Island Block 33.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 19-APR-09 01:00:00 to 19-APR-09 01:00:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 54 mph was measured by SAWRS site KSRN in South Marsh Island Block 268.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 19-APR-09 02:30:00 to 19-APR-09 02:30:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 41 mph was measured by an oil rig platform in South Marsh Island Block 217 Tiger Shoals.

Marine Thunderstorm Wind in COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM, GULF OF MEXICO
From 18-APR-09 16:05:00 to 18-APR-09 16:05:00 (CST-6)
Location: MOUTH OF SABINE RIVER
Magnitude: 43.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts over 50 mph were reported by an oil rig platform in Sabine Pass Block 10.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA 20 TO 60NM, GULF OF MEXICO
From 19-APR-09 05:00:00 to 19-APR-09 05:00:00 (CST-6)
Location: ATCHAFALAYA BAY
Magnitude: 35.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 40 mph was reported by an oil rig platform in Ship Shoal Block 224.