Thunderstorms initiated along the Piedmont trough during the early afternoon and quickly became severe as they organized and generated a cold pool. This cold pool bowed out ahead of the main line of storms through the late afternoon and early evening. Incredible instability was present with CAPE values in excess of 6000 J/kg combined with steep lapse rates to produce widespread severe weather.

Thunderstorm Wind in GEORGETOWN, SOUTH CAROLINA
From 01-JUL-12 16:38:00 to 01-JUL-12 16:39:00 (EST-5)
Location: UNION XRDS
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were reported down near the intersection of Highway 512 and Highway 513.

Hail in WILLIAMSBURG, SOUTH CAROLINA
From 01-JUL-12 16:40:00 to 01-JUL-12 16:42:00 (EST-5)
Location: HEBRON XRDS
Magnitude: 1.00 
Property damage: 0.75K
Crop damage: 0.00K
Reported by: COOP Observer

Hail up to the size of quarters was reported.

Hail in WILLIAMSBURG, SOUTH CAROLINA
From 01-JUL-12 16:45:00 to 01-JUL-12 16:47:00 (EST-5)
Location: MOUZON
Magnitude: 1.75 
Property damage: 1.25K
Crop damage: 0.00K
Reported by: Public

Hail to the size of golf balls was reported in the Mouzon community.

Thunderstorm Wind in GEORGETOWN, SOUTH CAROLINA
From 01-JUL-12 16:50:00 to 01-JUL-12 16:51:00 (EST-5)
Location: WILLIAMS HILL
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down near the intersection of Old Pee Dee Road and Williams Hill Road.

Thunderstorm Wind in HORRY, SOUTH CAROLINA
From 01-JUL-12 17:16:00 to 01-JUL-12 17:17:00 (EST-5)
Location: HORRY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down at the intersection of Smith Road and Horry Road.

Thunderstorm Wind in WILLIAMSBURG, SOUTH CAROLINA
From 01-JUL-12 17:20:00 to 01-JUL-12 17:21:00 (EST-5)
Location: GREELEYVILLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down along Society Street.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 16:00:00 to 01-JUL-12 16:02:00 (EST-5)
Location: BAZEN XRDS
Magnitude: 54.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees and power lines were reported down on East Bazen Road.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 16:03:00 to 01-JUL-12 16:04:00 (EST-5)
Location: TIMMONSVILLE
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

Large tree limbs were reported broken and down.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:00:00 to 01-JUL-12 16:01:00 (EST-5)
Location: EULONIA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reported down across Highway 41.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 16:10:00 to 01-JUL-12 16:11:00 (EST-5)
Location: JOHNSONVILLE
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

Large tree limbs were reported broken and down.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:15:00 to 01-JUL-12 16:16:00 (EST-5)
Location: NICHOLS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A tree was reported down near the intersection of Old Mullins Highway and Old Nichols Highway.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:47:00 to 01-JUL-12 15:48:00 (EST-5)
Location: (FLO)FLORENCE CITY-C
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Florence Regional Airport measured a wind gust to 69 mph.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:00:00 to 01-JUL-12 16:01:00 (EST-5)
Location: RAINS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was reported down on the railroad tracks along Railroad Avenue.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:05:00 to 01-JUL-12 16:06:00 (EST-5)
Location: MULLINS
Magnitude: 56.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The top 300 ft. of a 500 ft. cable tower collapsed at the intersection of South Cypress Street and Highway 76.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:05:00 to 01-JUL-12 16:10:00 (EST-5)
Location: NORTH MULLINS
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Large trees were reported down across power lines along Prevatte Road. Power lines were reported down on Martin Street. A large tree was also reported down across Old Nichols Highway.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:20:00 to 01-JUL-12 16:21:00 (EST-5)
Location: BRITTON NECK
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was reported down along Dill Creek Road.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:18:00 to 01-JUL-12 16:19:00 (EST-5)
Location: BRITTON NECK
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was reported down along Gresham Road. Large limbs were reportedly down near the intersection of Highway 908 and Gresham Road. A tree was also reported down on a vehicle on Gresham Road.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 16:19:00 to 01-JUL-12 16:20:00 (EST-5)
Location: GRESHAM
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was reported down on a vehicle on Oakridge Road.

Hail in MARLBORO, SOUTH CAROLINA
From 01-JUL-12 14:00:00 to 01-JUL-12 14:02:00 (EST-5)
Location: WALLACE
Magnitude: 1.00 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Hail to the size of quarters was reported.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 01-JUL-12 14:55:00 to 01-JUL-12 14:56:00 (EST-5)
Location: KELLYTOWN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down at the intersection of Highway 151 and New Market Road.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 01-JUL-12 14:55:00 to 01-JUL-12 14:56:00 (EST-5)
Location: SOCIETY HILL
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

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

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 01-JUL-12 14:56:00 to 01-JUL-12 14:57:00 (EST-5)
Location: DARLINGTON
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

Large limbs were reported broken and down.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 01-JUL-12 15:20:00 to 01-JUL-12 15:21:00 (EST-5)
Location: DARLINGTON CO ARPT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down at the intersection of Hartsville Highway and Quiet Brook Road.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 01-JUL-12 15:23:00 to 01-JUL-12 15:24:00 (EST-5)
Location: DARLINGTON BRNHMS AR
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down at the intersection of Indian Branch Road and South Center Road.

Thunderstorm Wind in DARLINGTON, SOUTH CAROLINA
From 01-JUL-12 15:31:00 to 01-JUL-12 15:32:00 (EST-5)
Location: DARLINGTON BRNHMS AR
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down at the Swift Creek Baptist Church.

Hail in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:35:00 to 01-JUL-12 15:37:00 (EST-5)
Location: EBENEZER
Magnitude: 1.50 
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail near golf ball size was reported.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:35:00 to 01-JUL-12 15:36:00 (EST-5)
Location: (FLO)FLORENCE CITY-C
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down on South Tremont Road.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:40:00 to 01-JUL-12 15:50:00 (EST-5)
Location: MARS BLUFF
Magnitude: 61.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Numerous trees, estimated to be more than 30, were reportedly down along and near U.S. 76 and in the Francis Marion University area. Some of the trees knocked down power lines as they fell. A roof was also reportedly blown off a poorly constructed building.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:43:00 to 01-JUL-12 15:48:00 (EST-5)
Location: MT ZION
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous trees were reported down along Highway 51. Power lines were also reported down.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 15:46:00 to 01-JUL-12 15:50:00 (EST-5)
Location: MARION
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees were reported down near the center of town.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:49:00 to 01-JUL-12 15:50:00 (EST-5)
Location: SAVANNAH GROVE
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down along Savannah Grove Road near the Elementary School.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 15:55:00 to 01-JUL-12 15:56:00 (EST-5)
Location: RAINS
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree was reported down across power lines near the intersection of Highway 41 and Highway 9.

Hail in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:55:00 to 01-JUL-12 15:57:00 (EST-5)
Location: HOWE
Magnitude: 1.25 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail to the size of half dollars was reported at the intersection of Third Loop Road and South Irby Street.

Thunderstorm Wind in MARION, SOUTH CAROLINA
From 01-JUL-12 15:58:00 to 01-JUL-12 15:59:00 (EST-5)
Location: SPRING BRANCH
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reported down near the intersection of West Sellers Road and U.S. 501.

Hail in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 15:25:00 to 01-JUL-12 15:27:00 (EST-5)
Location: COLES XRNG
Magnitude: 1.00 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

One-inch hail was measured.

Thunderstorm Wind in FLORENCE, SOUTH CAROLINA
From 01-JUL-12 16:20:00 to 01-JUL-12 16:21:00 (EST-5)
Location: JOHNSONVILLE
Magnitude: 54.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A metal roof was reportedly blown off a building on East Broadway Street.

Thunderstorm Wind in HORRY, SOUTH CAROLINA
From 01-JUL-12 16:23:00 to 01-JUL-12 16:24:00 (EST-5)
Location: CONWAY
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

Large branches reported broken and down.