A large upper level trough stalled over the southwest states while multiple short waves rotated around the larger trough over a few days. This produced multiple rounds of strong storms over the the coastal waters.

Marine Thunderstorm Wind in COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM, GULF OF MEXICO
From 25-APR-15 08:30:00 to 25-APR-15 08:30:00 (CST-6)
Location: MOUTH OF SABINE RIVER
Magnitude: 43.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 50 MPH was estimated at a platform in Sabine Block 10.

Marine Thunderstorm Wind in COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM, GULF OF MEXICO
From 25-APR-15 08:37:00 to 25-APR-15 08:37:00 (CST-6)
Location: MOUTH OF SABINE RIVER
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 65 MPH was recorded at a 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 25-APR-15 09:10:00 to 25-APR-15 09:10:00 (CST-6)
Location: CAMERON
Magnitude: 72.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A platform in West Cameron Block 110 measured a wind gust of 83 MPH.

Marine Hail in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 25-APR-15 09:10:00 to 25-APR-15 09:10:00 (CST-6)
Location: CAMERON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny sized hail was reported at platform in West Cameron Block 110.

Marine Thunderstorm Wind in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 25-APR-15 09:35:00 to 25-APR-15 09:35:00 (CST-6)
Location: WHITE LAKE
Magnitude: 56.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 65 MPH was measured at a platform in East Cameron Block 14. The instrument broke at 65 MPH.

Marine Thunderstorm Wind in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 25-APR-15 10:24:00 to 25-APR-15 10:24:00 (CST-6)
Location: WHITE LAKE
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A wind gust of 43 MPH was recorded at FRWL1.

Marine Thunderstorm Wind in INTRACOASTAL CITY LA TO CAMERON LA 20 TO 60NM, GULF OF MEXICO
From 25-APR-15 11:10:00 to 25-APR-15 11:10:00 (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 estimated at a platform in Vermilion Block 245.

Marine Thunderstorm Wind in INTRACOASTAL CITY LA TO CAMERON LA 20 TO 60NM, GULF OF MEXICO
From 25-APR-15 11:30:00 to 25-APR-15 11:30:00 (CST-6)
Location: CAMERON
Magnitude: 46.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 53 MPH was measured at a platform in West Cameron Block 368.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 25-APR-15 11:35:00 to 25-APR-15 11:35:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

KSCF recorded a wind gust of 34 knots.

Marine Thunderstorm Wind in INTRACOASTAL CITY LA TO CAMERON LA 20 TO 60NM, GULF OF MEXICO
From 25-APR-15 14:42:00 to 25-APR-15 14:42:00 (CST-6)
Location: CAMERON
Magnitude: 35.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 40 MPH was estimated at a platform in West Cameron Block 68.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 25-APR-15 11:30:00 to 25-APR-15 11:30:00 (CST-6)
Location: ATCHAFALAYA BAY
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 48 MPH was recorded by the tide gauge at Amerada Pass.

Marine Thunderstorm Wind in CALCASIEU LAKE, GULF OF MEXICO
From 27-APR-15 06:08:00 to 27-APR-15 06:08:00 (CST-6)
Location: HACKBERRY
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The RAWS site and the Sabine National Wildlife Refuge recorded a wind gust of 46 MPH with a line of storms before they moved over Calcasieu Lake.

Marine Thunderstorm Wind in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 27-APR-15 07:54:00 to 27-APR-15 07:54:00 (CST-6)
Location: WHITE LAKE
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A wind gust of 49 MPH was recorded by FRWL1.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 27-APR-15 08:25:00 to 27-APR-15 08:25:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 88.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 101 MPH was recorded at a platform in South Marsh Island Block 217.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 27-APR-15 09:20:00 to 27-APR-15 09:20:00 (CST-6)
Location: MARSH ISLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 60 MPH was estimated at a platform in Eugene Island Block 100.

Marine Thunderstorm Wind in ATCHAFALAYA R TO INTRACOASTAL CITY LA OUT 20NM, GULF OF MEXICO
From 27-APR-15 11:23:00 to 27-APR-15 11:23:00 (CST-6)
Location: ATCHAFALAYA BAY
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A wind gust of 45 MPH was recorded by a platform in Eugene Island Block 100.

Marine Thunderstorm Wind in COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM, GULF OF MEXICO
From 27-APR-15 08:06:00 to 27-APR-15 08:06:00 (CST-6)
Location: WHITE LAKE
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A wind gust of 49 MPH was recorded at FRWL1.