The Storm Prediction Center had designated a slight change of severe weather for all of east central Florida. A high amplitude shortwave over the Mississippi River Valley quickly moved south across the Florida peninsula during the afternoon and evening hours. A cold front associated with the intensifying trough was also observed crossing the Florida peninsula. Ahead of the cold front moderate thermodynamic instability with 700mb temperatures between -7 to -8 degrees Celsius, and 500mb between -9 to -10 degrees Celsius, resulting in lapse rates of 6-6.5 C/km. 90 knot winds atop a het streak over the north central Gulf of Mexico created resulting flow from the southwest. Numerous showers and thunderstorms developed along the cold front, eventually forming a line that crossed across all of east central Florida. A few storms produced strong winds along most of the coast, with two severe thunderstorms producing winds in excess of 50 knots in Brevard and Indian River counties.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 15:55:00 to 15-APR-18 15:55:00 (EST-5)
Location: VERO BEACH
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at the Vero Beach Airport, KVRB, measured a peak wind gust of 54 knots from the west.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 14:55:00 to 15-APR-18 14:55:00 (EST-5)
Location: MERRITT ISLAND
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

US Air Force wind tower 9404 measured a peak wind gust of 47 knots from the south.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 14:35:00 to 15-APR-18 14:35:00 (EST-5)
Location: CAPE CANAVERAL
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Weatherflow site XMER along the Banana River south of State Road 528 in Merritt Island measured a peak wind gust of 34 knots from the south-southeast.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 14:51:00 to 15-APR-18 14:51:00 (EST-5)
Location: SATELLITE BEACH
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The AWOS at Patrick Air Force Base, KCOF, measured a peak wind gust of 37 knots from the south.

Marine Thunderstorm Wind in FLAGLER BEACH TO VOLUSIA-BREVARD COUNTY LINE 0-20NM, ATLANTIC SOUTH
From 15-APR-18 15:04:00 to 15-APR-18 15:04:00 (EST-5)
Location: DAYTONA BEACH
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A mesonet at Embry Riddle University measured a peak wind gust of 44 knots.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 15:10:00 to 15-APR-18 15:10:00 (EST-5)
Location: PLAYALINDA BEACH
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

US Air Force wind tower 1007 measured a peak wind gust of 58 knots from the south.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 15:50:00 to 15-APR-18 15:50:00 (EST-5)
Location: PLAYALINDA BEACH
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

US Air Force wind tower 0421 measured a peak wind gust of 64 knots from the southwest.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 16:00:00 to 15-APR-18 16:00:00 (EST-5)
Location: PLAYALINDA BEACH
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

US Air Force wind tower 0019 measured a peak wind gust of 35 knots from the south.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 16:08:00 to 15-APR-18 16:08:00 (EST-5)
Location: VERO BEACH
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at the Vero Beach Airport, KVRB, measured a peak wind gust of 44 knots.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 16:32:00 to 15-APR-18 16:32:00 (EST-5)
Location: SEBASTIAN INLET
Magnitude: 46.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A Weather Underground mesonet measured a peak wind gust of 46 knots from the south.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 20-60NM, ATLANTIC SOUTH
From 15-APR-18 17:10:00 to 15-APR-18 17:10:00 (EST-5)
Location: BUOY 41009
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Buoy 41009 measured a peak wind gust of 39 knots from the south.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 15-APR-18 18:40:00 to 15-APR-18 18:40:00 (EST-5)
Location: STUART
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Weatherflow site XJEN on the Indian River in Jensen Beach measured a peak wind gust of 36 knots from the south.