Several strong to severe thunderstorms occurred as low to mid-level southwest winds brought a warm and very moist air mass into east central Florida and across the adjacent coastal waters. Much cooler and drier air above this nearly saturated air allowed for vigorous storm development which acted to produce severe wind gusts and hail in many of the thunderstorms that developed. Offshore winds allowed these storms to continue moving across the intracoastal waterway and into the Atlantic.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 16:06:00 to 20-APR-12 16:06:00 (EST-5)
Location: VERO BEACH
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at the Vero Beach Municipal Airport recorded a 37kt/43mph wind gust as a thunderstorm moved offshore into the Atlantic.

Marine High Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 15:45:00 to 20-APR-12 15:45:00 (EST-5)
Location: TEQUESTA
Magnitude: 48.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A damaging wind event occurred in Tequesta during a strong thunderstorm, with maximum winds of near 48kts/55mph. Several power-poles sustained damage along with numerous power-lines being knocked down. A tree was also toppled as this storm moved east into the local Atlantic. Photos from local emergency management and news media were obtained along with information from an eyewitness.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 16:52:00 to 20-APR-12 16:52:00 (EST-5)
Location: MERRITT ISLAND
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A mesonet station west of Patrick Air Force Base measured a wind gust of 36kt/41mph as a thunderstorm moved across the barrier island and continued offshore.

Marine Hail in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 16:47:00 to 20-APR-12 16:47:00 (EST-5)
Location: FT. PIERCE INLET
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A SKYWARN spotter reported quarter sized hail north of Fort Pierce as a severe thunderstorm moved across the intracoastal waters and into the adjacent coastal waters.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 17:14:00 to 20-APR-12 17:14:00 (EST-5)
Location: MELBOURNE
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 35kt/40mph wind gust was observed at the Melbourne International Airport as a thunderstorm pushed across the intracoastal waterway and into the Atlantic.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 17:41:00 to 20-APR-12 17:41:00 (EST-5)
Location: MELBOURNE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 50kt/58mph wind gust was observed at the Melbourne International Airport as a severe thunderstorm passed overhead and continued offshore.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 20-APR-12 17:46:00 to 20-APR-12 17:46:00 (EST-5)
Location: MELBOURNE BEACH
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A mesonet site near Melbourne Beach recorded a wind gust of 36kts/41mph as a thunderstorm crossed the intracoastal waterway and continued into the Atlantic.