A fast-moving squall line moved east across the Florida Keys as a deepening low pressure system moved from the southeast Gulf of Mexico to the western North Atlantic east of the Florida Peninsula.  Numerous gale-force and isolated storm-force wind gusts were observed.

Marine Thunderstorm Wind in OCEAN REEF TO CRAIG KEY FL OUT 20NM, GULF OF MEXICO
From 12-FEB-10 18:50:00 to 12-FEB-10 18:50:00 (EST-5)
Location: KEY LARGO
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A west wind gust of 36 knots (41 mph) was measured at a Weatherflow automated station in South Key Largo.

Marine Thunderstorm Wind in FLORIDA BAY, GULF OF MEXICO
From 12-FEB-10 18:53:00 to 12-FEB-10 18:53:00 (EST-5)
Location: ISLAMORADA
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A west wind gust of 38 knots (44 mph) was measured at Islamorada Fire Rescue Station No. 20 on Upper Matecumbe Key.

Marine Thunderstorm Wind in FLORIDA BAY, GULF OF MEXICO
From 12-FEB-10 18:55:00 to 12-FEB-10 18:55:00 (EST-5)
Location: ISLAMORADA
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A west-northwest wind gust of 37 knots (43 mph) was measured at a Weatherflow automated station on Upper Matecumbe Key.

Marine Thunderstorm Wind in GULF SIDE OF THE LOWER KEYS OUT 20NM, GULF OF MEXICO
From 12-FEB-10 17:50:00 to 12-FEB-10 17:50:00 (EST-5)
Location: KEY WEST
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A west-southwest wind gust of 38 knots (44 mph) was observed at an automated Weatherflow station at the USCG Station in Key West.

Marine Thunderstorm Wind in W END OF THE 7 MILE BRIDGE TO KEY W OUT 20NM, GULF OF MEXICO
From 12-FEB-10 17:54:00 to 12-FEB-10 17:54:00 (EST-5)
Location: KEY WEST
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

West-southwest wind gusts to 34 knots (39 mph) was measured at the Key West International Airport ASOS and the National Weather Service RSOIS in Key West.

Marine Thunderstorm Wind in KEY W TO DRY TORTUGAS WATERS, GULF OF MEXICO
From 12-FEB-10 17:56:00 to 12-FEB-10 17:56:00 (EST-5)
Location: KEY WEST
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 42 knots (48 mph) was measured at the Sand Key Light C-MAN Station.

Marine Thunderstorm Wind in W END OF THE 7 MILE BRIDGE TO KEY W OUT 20NM, GULF OF MEXICO
From 12-FEB-10 17:57:00 to 12-FEB-10 17:57:00 (EST-5)
Location: KEY WEST
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A wind gust of 39 knots was measured at the US Naval Air Station Key West on Boca Chica Key.

Marine Thunderstorm Wind in CRAIG KEY TO THE W END OF THE 7 MILE BRIDGE OUT 20NM, GULF OF MEXICO
From 12-FEB-10 19:03:00 to 12-FEB-10 19:03:00 (EST-5)
Location: MARATHON
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A west wind gust of 40 knots (46 mph) was measured at the Sombrero Key Light C-MAN Station.

Marine Thunderstorm Wind in OCEAN REEF TO CRAIG KEY FL OUT 20NM, GULF OF MEXICO
From 12-FEB-10 19:09:00 to 12-FEB-10 19:09:00 (EST-5)
Location: KEY LARGO
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A west-northwest wind gust of 44 knots (51 mph) was measured at the Molasses Reef Light C-MAN Station.

Marine Thunderstorm Wind in KEY W TO DRY TORTUGAS WATERS, GULF OF MEXICO
From 12-FEB-10 18:08:00 to 12-FEB-10 18:08:00 (EST-5)
Location: KEY WEST
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A west wind gust of 42 knots (48 mph) was measured at the Sand Key Light C-MAN Station.

Marine Thunderstorm Wind in W END OF THE 7 MILE BRIDGE TO KEY W OUT 20NM, GULF OF MEXICO
From 12-FEB-10 18:11:00 to 12-FEB-10 18:11:00 (EST-5)
Location: BIG PINE KEY
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 42 knots (48 mph) was measured at a Citizen Weather Observer Station on Cudjoe Key.

Marine Thunderstorm Wind in GULF SIDE OF THE LOWER KEYS OUT 20NM, GULF OF MEXICO
From 12-FEB-10 18:20:00 to 12-FEB-10 18:20:00 (EST-5)
Location: BIG PINE KEY
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A west-northwest wind gust of 35 knots (40 mph) was measured at a Citizen Weather Observer Station on Big Pine Key.

Marine Thunderstorm Wind in FLORIDA BAY, GULF OF MEXICO
From 12-FEB-10 18:24:00 to 12-FEB-10 18:24:00 (EST-5)
Location: FLAMINGO
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A west-northwest wind gust of 37 knots (43 mph) was measured at a University of South Florida automated station three miles south of East Cape Sable.

Marine Thunderstorm Wind in CRAIG KEY TO THE W END OF THE 7 MILE BRIDGE OUT 20NM, GULF OF MEXICO
From 12-FEB-10 18:35:00 to 12-FEB-10 18:35:00 (EST-5)
Location: MARATHON
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A west-southwest wind gust of 56 knots (64 mph) was measured at the Sombrero Key Light C-MAN Station.

Marine Thunderstorm Wind in FLORIDA BAY, GULF OF MEXICO
From 12-FEB-10 18:43:00 to 12-FEB-10 18:43:00 (EST-5)
Location: DUCK KEY
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A west-southwest wind gust of 47 knots (54 mph) was measured at the Long Key Light C-MAN Station.

Marine Thunderstorm Wind in KEY W TO DRY TORTUGAS WATERS, GULF OF MEXICO
From 12-FEB-10 16:35:00 to 12-FEB-10 16:35:00 (EST-5)
Location: DRY TORTUGAS
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A southwest wind gust of 52 knots was measured at the Pulaski Shoal Light C-MAN Station.