The Florida peninsula experienced strong south to southeast flow with Subtropical Storm Alberto far to the west and a strong high pressure over the western Atlantic. These south winds allowed deep tropical moisture from the Caribbean to move across the Florida peninsula. Some mid-level dry air wrapped itself around the eastern side of Alberto's circulation, which decreased cloud cover across parts of central Florida allowing for daytime heating and instability to increase. Scattered showers and thunderstorms developed during the afternoon and moved towards the coast. Several of these storms produced strong winds along the intracoastal waters of Brevard and Indian River Counties.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 20-60NM, ATLANTIC SOUTH
From 27-MAY-18 09:00:00 to 27-MAY-18 09:00:00 (EST-5)
Location: BUOY 41009
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Buoy 41009 measured a peak wind gust of 41 knots from the south-southeast.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 06:34:00 to 27-MAY-18 06:34:00 (EST-5)
Location: CAPE CANAVERAL
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet site XCCO at the Cocoa Beach Pier measured a peak wind gust of 36 knots.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 05:50:00 to 27-MAY-18 05:50:00 (EST-5)
Location: CAPE CANAVERAL
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet site XCCO at the Cocoa Beach Pier measured a peak wind gust of 35 knots.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 06:56:00 to 27-MAY-18 06:56:00 (EST-5)
Location: CAPE CANAVERAL
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The AWOS at the Cape Canaveral Air Force Station Skid Strip, KXMR, measured a peak wind gust of 37 knots from the south.

Marine Thunderstorm Wind in SEBASTIAN INLET TO JUPITER INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 03:44:00 to 27-MAY-18 03:44:00 (EST-5)
Location: ST. LUCIE NUCLEAR POWER PLANT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet site XSTL at the St. Lucie Nuclear Power Plant 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 27-MAY-18 04:15:00 to 27-MAY-18 04:15:00 (EST-5)
Location: VERO BEACH
Magnitude: 38.00 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 38 knots from the south.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 04:40:00 to 27-MAY-18 04:40:00 (EST-5)
Location: MICCO
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet site SIPF1 at Sebastian Inlet measured a peak wind gust of 36 knots.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 06:18:00 to 27-MAY-18 06:18:00 (EST-5)
Location: SATELLITE BEACH
Magnitude: 42.00 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 42 knots from the southeast.

Marine Thunderstorm Wind in VOLUSIA-BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20NM, ATLANTIC SOUTH
From 27-MAY-18 06:50:00 to 27-MAY-18 06:50:00 (EST-5)
Location: CAPE CANAVERAL
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

US Air Force wind tower 0003 measured a peak wind gust of 37 knots from the south.