A mesoscale convective complex moved from the southeast Gulf of Mexico and across the Florida Keys, producing widespread gale-force wind gusts.  A strengthening surface low was located over the central Gulf of Mexico, moving northeast.

Marine Thunderstorm Wind in GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO 5 FATHOMS, GULF OF MEXICO
From 28-APR-15 15:58:00 to 28-APR-15 15:58:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 44 knots was measured at an automated Weatherflow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 28-APR-15 16:20:00 to 28-APR-15 16:20:00 (EST-5)
Location: BIG COPPITT KEY
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust of 37 knots was measured at the Naval Air Station Key West Boca Chica airfield.

Marine Thunderstorm Wind in GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO 5 FATHOMS, GULF OF MEXICO
From 28-APR-15 16:21:00 to 28-APR-15 16:21:00 (EST-5)
Location: KEY WEST
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 37 knots was measured at an automated Weatherflow station at the U.S. Coast Guard Sector Key West.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 28-APR-15 16:39:00 to 28-APR-15 16:39:00 (EST-5)
Location: SUMMERLAND KEY
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 35 knots was measured at an automated Citizen Weather Observing Program station at the south end of Cudjoe Bay.

Marine Thunderstorm Wind in BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE, GULF OF MEXICO
From 28-APR-15 16:54:00 to 28-APR-15 16:54:00 (EST-5)
Location: LAYTON
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 40 knots was measured at Long Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT TO THE REEF, GULF OF MEXICO
From 28-APR-15 17:07:00 to 28-APR-15 17:07:00 (EST-5)
Location: SOMBRERO KEY LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 35 knots was measured at Sombrero Key Light.

Marine Thunderstorm Wind in BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE, GULF OF MEXICO
From 28-APR-15 17:21:00 to 28-APR-15 17:21:00 (EST-5)
Location: LAYTON
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 35 knots was measured at Long Key Light.

Marine Thunderstorm Wind in FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND BUTTONWOOD SOUND, GULF OF MEXICO
From 28-APR-15 17:23:00 to 28-APR-15 17:23:00 (EST-5)
Location: PLANTATION KEY
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 38 knots was measured at an automated Citizen Weather Observing Station located at the Islamorada Bernard Russell Fire Station on Upper Matecumbe Key.

Marine Thunderstorm Wind in BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE, GULF OF MEXICO
From 28-APR-15 17:00:00 to 28-APR-15 17:00:00 (EST-5)
Location: MARATHON
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 44 mph was measured by an automated Weatherlink station along the bayside of Marathon just north of the Florida Keys Marathon Airport.

Marine Thunderstorm Wind in FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND BUTTONWOOD SOUND, GULF OF MEXICO
From 28-APR-15 17:37:00 to 28-APR-15 17:37:00 (EST-5)
Location: KEY LARGO
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 47 mph was measured by an automated Weatherlink station located at Jewfish Creek.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 28-APR-15 16:20:00 to 28-APR-15 16:20:00 (EST-5)
Location: KEY WEST
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust of 37 knots was measured at Key West International Airport.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 28-APR-15 17:35:00 to 28-APR-15 17:35:00 (EST-5)
Location: MOLASSES REEF LIGHT
Magnitude: 46.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 46 knots was measured at Molasses Reef Light.