A stationary upper-level disturbance, strong onshore flow, and a weak frontal boundary produced persistent onshore moving squalls on October 7-8.
A strong gale then formed over the Bahamas on October 9 and moved northwest and onto the Brevard and Volusia County coast late in the evening. As the gale approached the coast, heavy convective bands and storm-force winds developed west of the center of circulation. While not a tropical storm, the system briefly possessed some tropical/sub-tropical characteristics. Winds gusted over 50 knots near the gale, and as high as 80-90 knots within the convective band west of the center. A cruise ship left Port Canaveral and traveled directly through the convective band, realizing extreme winds and seas. Several passengers experienced minor injuries.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 20-60NM, ATLANTIC SOUTH
From 09-OCT-11 18:30:00 to 09-OCT-11 19:00:00 (EST-5)
Location: BUOY 41009
Magnitude: 90.00 MG
Crop damage: 0.00K
Reported by: Mariner

The 1112 foot long Freedom of the Seas cruise ship departed Port Canaveral, Florida and traveled through convective bands on the west side of the gale/hybrid low. The anemometer (presumably at a height above 200 feet) measured wind gusts above 75 knots, with a peak wind of 90 knots. The ship was reported to have listed 12 degrees as it navigated the high winds and seas. Royal Caribbean Cruise Line reported 13 passengers experienced minor injuries due to severe ship movement. The ship sustained some damage to public areas and guest staterooms, but the sea-worthiness of the ship was not affected.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 17:53:00 to 08-OCT-11 17:53:00 (EST-5)
Location: VERO BEACH
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A strong thunderstorm resulted in a 40 knot wind gust at the Vero Beach Municipal Airport as it pushed onshore and crossed the intracoastal waterway.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 18:49:00 to 08-OCT-11 18:49:00 (EST-5)
Location: MELBOURNE
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Melbourne International Airport observed a 42 knot wind gust as a strong thunderstorm moved onshore from the Atlantic.

Marine High Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 09-OCT-11 17:00:00 to 09-OCT-11 23:00:00 (EST-5)
Location: PLAYALINDA BEACH
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

As a hybrid/gale moved onshore, winds across the Brevard County coastal waters increased to 30-45 knots, with frequent gusts of 48 knots or more.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 15:40:00 to 08-OCT-11 15:40:00 (EST-5)
Location: ST. LUCIE NUCLEAR POWER PLANT
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 40 knot wind gust occurred near the St. Lucie Nuclear Power Plant as a strong thunderstorm moved onshore and crossed the barrier island.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 16:07:00 to 08-OCT-11 16:07:00 (EST-5)
Location: SATELLITE BEACH
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A strong onshore moving thunderstorm resulted in a 40 knot wind gust at Patrick Air Force Base as it crossed the intracoastal waters.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 16:55:00 to 08-OCT-11 16:55:00 (EST-5)
Location: STUART
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A 40 knot wind gust was recorded at Witham Field Airport as a strong thunderstorm moved onshore from the Atlantic.

Marine High Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 09-OCT-11 17:00:00 to 09-OCT-11 23:00:00 (EST-5)
Location: SATELLITE BEACH
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

As a hybrid/gale moved onshore, winds across the Brevard County coastal waters increased to 30-45 knots, with frequent gusts of 48 knots or more.

Marine High Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 20-60NM, ATLANTIC SOUTH
From 09-OCT-11 22:00:00 to 10-OCT-11 03:00:00 (EST-5)
Location: BUOY 41009
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

As a hybrid/gale moved toward the coast, winds over the Brevard County offshore waters increased to 30-45 knots, with frequent gusts of 48 knots or more.

Marine High Wind in FLAGLER BEACH TO VOLUSIA-BREVARD COUNTY LINE 0-20NM, ATLANTIC SOUTH
From 09-OCT-11 23:00:00 to 10-OCT-11 03:00:00 (EST-5)
Location: NEW SMYRNA BEACH
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

As a hybrid/gale moved onshore, winds across the Volusia County coastal waters increased to 30-45 knots, with frequent gusts of 48 knots or more.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 07-OCT-11 16:56:00 to 07-OCT-11 16:56:00 (EST-5)
Location: VERO BEACH
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Vero Beach Municipal Airport ASOS measured a wind gust of 38 knots as a thunderstorm crossed the intracoastal waterway and subsequently dissipated.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 07-OCT-11 20:40:00 to 07-OCT-11 20:40:00 (EST-5)
Location: SATELLITE BEACH
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 36 knot wind gust occurred at Patrick Air Force Base as a thunderstorm moved over the barrier island before weakening.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 06:49:00 to 08-OCT-11 06:49:00 (EST-5)
Location: SATELLITE BEACH
Magnitude: 36.00 MG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: ASOS

A wind gust of 36 knots occurred at Patrick Air Force Base as a thunderstorm developed offshore and moved across the barrier island. Power lines and a traffic signal were reported down at the main gate.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 13:41:00 to 08-OCT-11 13:41:00 (EST-5)
Location: MELBOURNE
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Melbourne International Airport ASOS measured a wind gust of 38 knots as a thunderstorm moved onshore from the Atlantic.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 08-OCT-11 14:33:00 to 08-OCT-11 14:33:00 (EST-5)
Location: VERO BEACH
Magnitude: 35.00 MG
Property damage: 0.30K
Crop damage: 0.00K
Reported by: ASOS

A 35 knot wind gust was observed at the Vero Beach Municipal Airport as a thunderstorm pushed onshore across the intracoastal waterway. Power lines were also reported down in the vicinity.

Marine High Wind in FLAGLER BEACH TO VOLUSIA-BREVARD COUNTY LINE 0-20NM, ATLANTIC SOUTH
From 09-OCT-11 23:00:00 to 10-OCT-11 03:00:00 (EST-5)
Location: ORMOND BEACH
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

As a hybrid/gale moved onshore, winds across the Volusia County coastal waters increased to 30-45 knots, with frequent gusts of 48 knots or more.