Intense heating led to a very unstable airmass across the area. The environment was conducive for downbursts. Afternoon storms eventually organized into an MCS during the evening. The MCS pushed slowly offshore and weakened during the late evening.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 13-JUL-11 15:59:00 to 13-JUL-11 16:00:00 (EST-5)
Location: SPRING BRANCH
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: COOP Observer

A large pine tree fell onto the roof of a residence. The time was estimated based on radar data.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 13-JUL-11 15:22:00 to 13-JUL-11 15:23:00 (EST-5)
Location: HARTSVILLE MUNI ARPT
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was reportedly blocking Lake View Boulevard.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 13-JUL-11 15:22:00 to 13-JUL-11 15:23:00 (EST-5)
Location: SOUTH HARTSVILLE
Magnitude: 56.00 EG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Large limbs were reported down on East Home Avenue.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 13-JUL-11 15:28:00 to 13-JUL-11 15:29:00 (EST-5)
Location: HARTSVILLE MUNI ARPT
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was reported down on New Market Road.

Thunderstorm Wind in HORRY, SOUTH CAROLINA
From 13-JUL-11 16:19:00 to 13-JUL-11 16:20:00 (EST-5)
Location: BAYBORO
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large limbs were reported down.

Hail in HORRY, SOUTH CAROLINA
From 13-JUL-11 16:36:00 to 13-JUL-11 16:38:00 (EST-5)
Location: BAYBORO
Magnitude: 1.00 
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

Hail to the size of quarters was reported.

Thunderstorm Wind in HORRY, SOUTH CAROLINA
From 13-JUL-11 16:33:00 to 13-JUL-11 16:34:00 (EST-5)
Location: PLAYCARDS
Magnitude: 56.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree reportedly fell onto a car on Green Sea Road. No injuries were reported.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 13-JUL-11 16:35:00 to 13-JUL-11 16:36:00 (EST-5)
Location: SARDIS
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A wind gust of 59 mph was measured.

Hail in FLORENCE, SOUTH CAROLINA
From 13-JUL-11 16:35:00 to 13-JUL-11 16:37:00 (EST-5)
Location: SARDIS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail to the size of nickels was reported.

Thunderstorm Wind in HORRY, SOUTH CAROLINA
From 13-JUL-11 16:36:00 to 13-JUL-11 16:37:00 (EST-5)
Location: BAYBORO
Magnitude: 61.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

Three trees were reportedly blown down on Highway 410.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 13-JUL-11 15:18:00 to 13-JUL-11 15:20:00 (EST-5)
Location: NORTH HARTSVILLE
Magnitude: 70.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees were reported down at the intersection of North Center Road and Patrick Highway. Two mobile homes sustained damage from the fallen trees.