Early in the afternoon, isolated thunderstorms developed along the coast as the sea breeze began to set up. These storms produced strong wind gusts along the coast. Then later in the afternoon and through the evening, a strong line of thunderstorms developed within an inland trough and progressed eastward. As the line of thunderstorms moved through coastal locations and the adjacent coastal waters numerous reports of strong wind gusts were reported by area observation sites.

Marine Thunderstorm Wind in Charleston Harbor, ATLANTIC SOUTH
From 02-JUL-15 12:03:00 to 02-JUL-15 12:10:00 (EST-5)
Location: FORT SUMTER
Magnitude: 34.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow site at Fort Sumter measured a 34 knot wind gust due to a thunderstorm. The peak wind gust of 36 knots occurred just a few minutes later.

Marine Thunderstorm Wind in Savannah GA to Altamaha Sound GA out 20nm, ATLANTIC SOUTH
From 02-JUL-15 17:49:00 to 02-JUL-15 17:54:00 (EST-5)
Location: GRAYS REEF BUOY (41008)
Magnitude: 39.00 MG
Crop damage: 0.00K
Reported by: Buoy

Buoy 41008 measured a 39 knot wind gust with a passing line of thunderstorms. A peak wind gust of 41 knots occurred a few minutes later.

Marine Thunderstorm Wind in Edisto Beach SC to Savannah GA out 20nm, ATLANTIC SOUTH
From 02-JUL-15 18:49:00 to 02-JUL-15 18:51:00 (EST-5)
Location: TYBEE ISLAND
Magnitude: 43.00 MG
Crop damage: 0.00K
Reported by: Mesonet

A 43 knot wind gust was measured at the Salty Dog Cafe on Hilton Head Island.

Marine Thunderstorm Wind in Charleston Harbor, ATLANTIC SOUTH
From 02-JUL-15 19:28:00 to 02-JUL-15 19:38:00 (EST-5)
Location: FORT SUMTER
Magnitude: 41.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Weatherflow site at Fort Sumter measured a 41 knot wind gust with a line of thunderstorms. A peak wind gust of 43 knots occurred just a few minutes later.

Marine Thunderstorm Wind in Charleston Harbor, ATLANTIC SOUTH
From 02-JUL-15 19:30:00 to 02-JUL-15 19:35:00 (EST-5)
Location: FORT SUMTER
Magnitude: 40.00 MG
Crop damage: 0.00K
Reported by: Mesonet

A 40 knot wind gust was measured at the Fort Johnson South Carolina Department of Natural Resources site.

Marine Thunderstorm Wind in South Santee River SC to Savannah GA 20 to 40nm, ATLANTIC SOUTH
From 02-JUL-15 20:29:00 to 02-JUL-15 20:30:00 (EST-5)
Location: EDISTO BUOY (41004)
Magnitude: 43.00 MG
Crop damage: 0.00K
Reported by: Buoy

Buoy 41004 measured a 43 knot wind gust with passing thunderstorms.

Marine Thunderstorm Wind in South Santee River SC to Savannah GA 20 to 40nm, ATLANTIC SOUTH
From 02-JUL-15 20:50:00 to 02-JUL-15 20:51:00 (EST-5)
Location: EDISTO BUOY (41004)
Magnitude: 41.00 MG
Crop damage: 0.00K
Reported by: Buoy

Buoy 41004 measured a 41 knot wind gust with passing thunderstorms.

Marine Thunderstorm Wind in Charleston Harbor, ATLANTIC SOUTH
From 02-JUL-15 19:34:00 to 02-JUL-15 19:37:00 (EST-5)
Location: FORT SUMTER
Magnitude: 45.00 MG
Crop damage: 0.00K
Reported by: Mesonet

A 45 knot wind gust was measured at the James Island Yacht Club.

Marine Thunderstorm Wind in Savannah GA to Altamaha Sound GA out 20nm, ATLANTIC SOUTH
From 02-JUL-15 18:25:00 to 02-JUL-15 18:55:00 (EST-5)
Location: TYBEE ISLAND
Magnitude: 37.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The South Tybee Island Weatherflow site measured a 37 knot wind gust with a passing line of thunderstorms. The wind gusts continued to increase over the next 20 minutes and a peak wind gust of 51 knots occurred during that time.