Thunderstorms initiated over the mountains of North Carolina during the afternoon hours. As the afternoon progressed, several supercell thunderstorms developed which tracked southeast across the foothills and piedmont along a slow moving surface cold front. Many of the storms moved along the North Carolina, South Carolina border. With unusually steep lapse rates over the region, several of the storms produced large hail. Fortunately the supercells were a little elevated in nature, which kept any tornadoes from forming over South Carolina. Still, hail ranging up to the size of softballs did quite a bit of damage over the region.

Hail in CHESTER, SOUTH CAROLINA
From 09-APR-11 20:15:00 to 09-APR-11 20:20:00 (EST-5)
Location: CHESTER MUNI ARPT
Magnitude: 1.50 
Reported by: Amateur Radio

Hail in CHESTER, SOUTH CAROLINA
From 09-APR-11 21:14:00 to 09-APR-11 21:18:00 (EST-5)
Location: CHESTER
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 17:19:00 to 09-APR-11 17:19:00 (EST-5)
Location: BETHANY
Magnitude: 1.75 
Reported by: Trained Spotter

Golf ball size hail fell at Kings Mountain State Park.

Hail in ANDERSON, SOUTH CAROLINA
From 09-APR-11 16:33:00 to 09-APR-11 16:33:00 (EST-5)
Location: PELZER
Magnitude: 1.00 
Reported by: Public

Hail in CHESTER, SOUTH CAROLINA
From 09-APR-11 18:02:00 to 09-APR-11 18:02:00 (EST-5)
Location: EDGEMOOR
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported on Harmony Church Rd.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 16:34:00 to 09-APR-11 16:34:00 (EST-5)
Location: CLOVER
Magnitude: 2.00 
Reported by: Amateur Radio

Two inch diameter hail fell near the intersection of highway 55 and Kingsbury Rd.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 17:48:00 to 09-APR-11 17:48:00 (EST-5)
Location: INDUSTRIAL
Magnitude: 0.88 
Reported by: Trained Spotter

Nickel size hail was reported along exit 82 on Interstate 40.

Hail in OCONEE, SOUTH CAROLINA
From 09-APR-11 15:31:00 to 09-APR-11 15:31:00 (EST-5)
Location: SALEM
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in OCONEE, SOUTH CAROLINA
From 09-APR-11 15:32:00 to 09-APR-11 15:32:00 (EST-5)
Location: SALEM
Magnitude: 1.00 
Reported by: Public

Hail in OCONEE, SOUTH CAROLINA
From 09-APR-11 15:50:00 to 09-APR-11 16:05:00 (EST-5)
Location: NEWRY
Magnitude: 1.75 
Reported by: Amateur Radio

Hail up to the size of golf balls fell from near Six Mile to Norris and Liberty.

Hail in ANDERSON, SOUTH CAROLINA
From 09-APR-11 16:14:00 to 09-APR-11 16:14:00 (EST-5)
Location: POWDERSVILLE
Magnitude: 1.75 
Reported by: Amateur Radio

Golf ball size hail fell near the intersection of East Church Rd and highway 8.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 16:47:00 to 09-APR-11 16:47:00 (EST-5)
Location: FT MILL
Magnitude: 2.00 
Reported by: Public

Hail in LAURENS, SOUTH CAROLINA
From 09-APR-11 17:05:00 to 09-APR-11 17:10:00 (EST-5)
Location: GRAY COURT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 16:25:00 to 09-APR-11 17:05:00 (EST-5)
Location: BOWLING GREEN
Magnitude: 1.75 
Reported by: Public

Hail up to the size of golf balls fell in a nearly continuous path from near Clover, to the Lake Wylie area, to Tega Cay and Fort Mill then across the east side of Rock Hill to the Catawba area.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 16:26:00 to 09-APR-11 16:26:00 (EST-5)
Location: CLOVER
Magnitude: 4.00 
Reported by: Public

Hail up to the size of a softball was measured on Cedar Hill Rd.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 17:32:00 to 09-APR-11 17:32:00 (EST-5)
Location: CLOVER
Magnitude: 2.50 
Reported by: Amateur Radio

A second severe thunderstorm produced another round of very large hail near the Kingsbury Rd and highway 55 intersection.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 19:12:00 to 09-APR-11 19:18:00 (EST-5)
Location: CLOVER
Magnitude: 1.75 
Reported by: Public

A third hail storm affected the county with a swath of hail up to golf ball size affecting areas from Clover to York.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 19:25:00 to 09-APR-11 19:25:00 (EST-5)
Location: TIRZAH
Magnitude: 0.75 
Reported by: Amateur Radio

Penny size hail fell near the Gordon Rd and Billy Wilson Rd intersection.

Hail in CHEROKEE, SOUTH CAROLINA
From 09-APR-11 19:30:00 to 09-APR-11 19:42:00 (EST-5)
Location: GRASSY POND
Magnitude: 1.75 
Reported by: Trained Spotter

A swath of golf ball size hail fell from Old Mill Rd, across the east side of Gaffney, to a point about 6 miles southeast of Gaffney.

Hail in CHESTER, SOUTH CAROLINA
From 09-APR-11 19:46:00 to 09-APR-11 19:46:00 (EST-5)
Location: RICHBURG
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in CHEROKEE, SOUTH CAROLINA
From 09-APR-11 19:31:00 to 09-APR-11 19:31:00 (EST-5)
Location: GRASSY POND
Magnitude: 2.75 
Reported by: Amateur Radio

Baseball size hail damaged an amateur radio operator's roof in the Grassy Pond
community.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 17:48:00 to 09-APR-11 17:48:00 (EST-5)
Location: ROCK HILL
Magnitude: 1.75 
Reported by: Public

Golf ball size hail was reported on Walnut St in Rock Hill.

Hail in YORK, SOUTH CAROLINA
From 09-APR-11 20:47:00 to 09-APR-11 20:47:00 (EST-5)
Location: SHARON
Magnitude: 0.88 
Reported by: Trained Spotter