Southerly inflow into a large convective complex in the southeast Gulf of Mexico combined with diverging flow aloft and a moist, unstable atmosphere to produce numerous thunderstorms over the extreme lower Florida Keys.

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 02-MAY-13 10:25:00 to 02-MAY-13 10:25:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 34 knots was measured by an automated WeatherFlow station at Smith Shoal Light.

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 02-MAY-13 10:50:00 to 02-MAY-13 10:50:00 (EST-5)
Location: KEY WEST
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 36 knots was measured at an automated WeatherFlow station at the U.S. Coast Guard Sector Key West.

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 02-MAY-13 10:55:00 to 02-MAY-13 10:55:00 (EST-5)
Location: KEY WEST
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 39 knots was measured at an automated WeatherFlow station at the U.S. Coast Guard Sector Key West.

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 02-MAY-13 11:00:00 to 02-MAY-13 11:00:00 (EST-5)
Location: KEY WEST
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 34 knots was measured at an automated WeatherFlow station at the U.S. Coast Guard Sector Key West.

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 02-MAY-13 11:20:00 to 02-MAY-13 11:20:00 (EST-5)
Location: KEY WEST
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 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 02-MAY-13 11:22:00 to 02-MAY-13 11:22:00 (EST-5)
Location: KEY WEST
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A wind gust of 37 knots was measured at the RSOIS instrument of the Key West National Weather Service Forecast Office.

Marine Hail in GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO 5 FATHOMS, GULF OF MEXICO
From 02-MAY-13 10:45:00 to 02-MAY-13 10:45:00 (EST-5)
Location: KEY WEST
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mariner

Three-quarter-inch diameter hail was reported by a charter boat captain along with gale force winds in the Northwest Channel a few miles northwest of Key West Harbor.

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 02-MAY-13 11:35:00 to 02-MAY-13 11:35:00 (EST-5)
Location: KEY WEST
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 43 knots was measured at an automated WeatherFlow station at the U.S. Coast Guard Sector Key West.

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 02-MAY-13 12:50:00 to 02-MAY-13 12:50:00 (EST-5)
Location: KEY WEST
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mariner

A wind gust of 50 knots was estimated by a mariner over the nearshore waters north of 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 02-MAY-13 12:50:00 to 02-MAY-13 12:50:00 (EST-5)
Location: SUMMERLAND KEY
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A wind gust of 36 knots was measured at a residence along the south shore of Cudjoe Bay.

Marine Thunderstorm Wind in HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT TO THE REEF, GULF OF MEXICO
From 02-MAY-13 14:11:00 to 02-MAY-13 14:11:00 (EST-5)
Location: SOMBRERO KEY LIGHT
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 41 knots was measured at Sombrero Key Light.