The environment was characterized as highly unstable. Widespread thunderstorms erupted during the extreme heat of the afternoon and persisted into the evening. Initially severe thunderstorms developed on the Piedmont trough and seabreeze boundary. Later, other severe thunderstorms developed along colliding outflow boundaries.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 18-JUN-15 16:04:00 to 18-JUN-15 16:05:00 (EST-5)
Location: WEST MARION
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree was reported down.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 18-JUN-15 16:15:00 to 18-JUN-15 16:16:00 (EST-5)
Location: LAKE CITY
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A tree was reportedly down along Highway 52.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 18-JUN-15 16:18:00 to 18-JUN-15 16:19:00 (EST-5)
Location: CENTENARY
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Public

Eight trees were reportedly down in roadway in front of Creek Bridge High School. The time was estimated based on radar data.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 18-JUN-15 16:05:00 to 18-JUN-15 16:10:00 (EST-5)
Location: MARION
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were reported down across the city of Marion. The time was estimated based on radar data.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 18-JUN-15 16:10:00 to 18-JUN-15 16:11:00 (EST-5)
Location: MULLINS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree was reported down in roadway.

Thunderstorm Wind in DILLON, SOUTH CAROLINA
From 18-JUN-15 15:08:00 to 18-JUN-15 15:09:00 (EST-5)
Location: DILLON CO ARPT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was reportedly down at Roger's Convenience Store on Oakland Road. The time was estimated based on radar data.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 18-JUN-15 15:03:00 to 18-JUN-15 15:04:00 (EST-5)
Location: WILSON XRDS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reported down at the intersection of Hill Creek Road and Sprout Road. The time was estimated by radar data.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 18-JUN-15 14:50:00 to 18-JUN-15 14:51:00 (EST-5)
Location: DARLINGTON
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Five trees were reported down in the city of Darlington. The time was estimated based on radar data.

Thunderstorm Wind in MARLBORO, SOUTH CAROLINA
From 18-JUN-15 14:39:00 to 18-JUN-15 14:40:00 (EST-5)
Location: CLIO
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reportedly down at the intersection of Highway 83 and Laurin Willis Road. The time was estimated based on radar data.

Thunderstorm Wind in MARLBORO, SOUTH CAROLINA
From 18-JUN-15 14:35:00 to 18-JUN-15 14:36:00 (EST-5)
Location: CLIO
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reportedly down on Drew Street. The time was estimated based on radar data.

Thunderstorm Wind in MARLBORO, SOUTH CAROLINA
From 18-JUN-15 14:31:00 to 18-JUN-15 14:32:00 (EST-5)
Location: ISLAY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reported down on U.S. 15.