A deep layer ridge of high pressure just north of the region resulted in light easterly winds. The atmosphere south of the ridge was very unstable and numerous slow moving thunderstorms developed. Some of the storms produced damaging winds and large hail.

Thunderstorm Wind in YORK, SOUTH CAROLINA
From 17-JUL-13 16:25:00 to 17-JUL-13 16:25:00 (EST-5)
Location: ROCK HILL
Magnitude: 50.00 EG
Reported by: County Official

A few trees were blown down between Rock Hill and Lake Wylie, with some trees on power lines.

Thunderstorm Wind in CHEROKEE, SOUTH CAROLINA
From 17-JUL-13 16:43:00 to 17-JUL-13 16:47:00 (EST-5)
Location: GRASSY POND
Magnitude: 50.00 EG
Reported by: Amateur Radio

Multiple trees and power lines were blown down, mainly across the northwest part of the county. Affected roads included State Line Rd, Green Lake Rd, Woods Farm Rd and Swofford Dr.

Hail in GREENVILLE, SOUTH CAROLINA
From 17-JUL-13 17:14:00 to 17-JUL-13 17:14:00 (EST-5)
Location: TAYLORS
Magnitude: 2.00 
Reported by: Public

Larger than golf ball sized hail fell along highway 290, south of Lake Robinson.

Thunderstorm Wind in SPARTANBURG, SOUTH CAROLINA
From 17-JUL-13 16:50:00 to 17-JUL-13 17:22:00 (EST-5)
Location: CHESNEE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Numerous large limbs blown down and blocking roads in the Chesnee area. At least two trees fell on houses in Chesnee. Highway Patrol reported at least a dozen trees blown down from the Chesnee area, across Boiling Springs and north Spartanburg, to Reidville. NWS employee reported multiple trees and numerous large limbs down centered in the area near Blackstock Rd and Hidden Hill Rd.

Thunderstorm Wind in GREENVILLE, SOUTH CAROLINA
From 17-JUL-13 17:14:00 to 17-JUL-13 17:45:00 (EST-5)
Location: JORDON
Magnitude: 55.00 EG
Reported by: Public

Multiple reports of downed trees were received from the public around Greer, mainly on the west and north side of town. Spotter reported numerous large limbs and power lines down in the Augusta St area just south of downtown Greenville. Highway Patrol reported more than  a dozen trees blown down from north of Greer, across Taylors and the Wade Hampton community to the downtown Greenville area.

Hail in GREENVILLE, SOUTH CAROLINA
From 17-JUL-13 17:15:00 to 17-JUL-13 17:15:00 (EST-5)
Location: FAIRVIEW
Magnitude: 1.00 
Reported by: NWS Employee

Quarter size hail was reported west of Lyman.

Hail in GREENVILLE, SOUTH CAROLINA
From 17-JUL-13 17:20:00 to 17-JUL-13 17:20:00 (EST-5)
Location: FAIRVIEW
Magnitude: 0.88 
Reported by: Public

Thunderstorm Wind in LAURENS, SOUTH CAROLINA
From 17-JUL-13 17:53:00 to 17-JUL-13 18:15:00 (EST-5)
Location: LAURENS
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

Quite a few trees were blown down across the north and west part of the county from the Gray Court area, across Hickory Tavern and the Boyd Mill Pond area to near Ware Shoals.

Hail in ANDERSON, SOUTH CAROLINA
From 17-JUL-13 18:00:00 to 17-JUL-13 18:00:00 (EST-5)
Location: SANDY SPGS
Magnitude: 1.00 
Reported by: NWS Employee

NWS employee relayed report of quarter size hail near Lake Hartwell in the Sandy Springs community.

Thunderstorm Wind in ABBEVILLE, SOUTH CAROLINA
From 17-JUL-13 18:15:00 to 17-JUL-13 18:50:00 (EST-5)
Location: DONALDS
Magnitude: 55.00 EG
Reported by: Emergency Manager

Numerous trees and large limbs were blown down throughout Abbeville County.

Thunderstorm Wind in ANDERSON, SOUTH CAROLINA
From 17-JUL-13 18:16:00 to 17-JUL-13 18:28:00 (EST-5)
Location: ANDERSON
Magnitude: 50.00 EG
Reported by: Law Enforcement

About a half dozen trees were blown down from the north side of Anderson west to Lake Hartwell.

Thunderstorm Wind in GREENWOOD, SOUTH CAROLINA
From 17-JUL-13 18:35:00 to 17-JUL-13 18:55:00 (EST-5)
Location: GREENWOOD
Magnitude: 50.00 EG
Reported by: Law Enforcement

About a half dozen trees were blown down, mostly across the central part of the county and the city of Greenwood.

Thunderstorm Wind in PICKENS, SOUTH CAROLINA
From 17-JUL-13 14:55:00 to 17-JUL-13 15:00:00 (EST-5)
Location: SUNSET
Magnitude: 50.00 EG
Reported by: 911 Call Center

Multiple trees were blown down along highway 11.