An intensifying cluster of thunderstorms moved into the Upstate from northeast Georgia during the late evening and early part of the overnight, in advance of a strong storm system and attendant cold front. Anderson County bore the brunt of the storms, as virtually the entire county was impacted by 60 to 80 mph wind gusts. Brief, weak tornadoes enhanced the damage in a couple of locations.  Almost as quickly as they intensified, the storms weakened and were generally sub-severe by the time they reached the I-26 corridor.

Thunderstorm Wind in GREENVILLE, SOUTH CAROLINA
From 05-APR-17 23:15:00 to 05-APR-17 23:15:00 (EST-5)
Location: LOCUST HILL
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Ham radio operator reported the metal roof was blown off a building at Highway 253 and Highway 290.

Thunderstorm Wind in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:25:00 to 05-APR-17 23:25:00 (EST-5)
Location: POWDERSVILLE
Magnitude: 45.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Public reported a tree was blown down, damaging a deck and a pool on Blue Forest Ln.

Thunderstorm Wind in GREENVILLE, SOUTH CAROLINA
From 05-APR-17 23:29:00 to 05-APR-17 23:37:00 (EST-5)
Location: PIEDMONT
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Public reported about a dozen trees blown down along Williams Rd in Piedmont. EM and Highway Patrol reported more sporadic downed trees east of there along the I-185 corridor, with a tree on a home on Standing Springs Rd.

Tornado in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:20:00 to 05-APR-17 23:21:00 (EST-5)
Location: SAYLORS XRDS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

National Weather Service storm survey found a small area of tornado damage within a broader swath of less intense downburst damage. The tornado briefly touched down on Bryant Rd near Highway 413. Damage was mainly confined to uprooted or snapped trees.

Thunderstorm Wind in SPARTANBURG, SOUTH CAROLINA
From 05-APR-17 23:36:00 to 05-APR-17 23:36:00 (EST-5)
Location: CAMPOBELLO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported multiple trees blown down in the Campobello area.

Tornado in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:30:00 to 05-APR-17 23:31:00 (EST-5)
Location: HONEA PATH
Tornado F-scale: EF0
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS Storm survey found a small area of tornado damage within a wider swatch of less intense downburst damage. The tornado briefly touched down off Brook St on the southwest side of honea path. Numerous trees were blown down, while a patio and carport structure were also damaged.

Hail in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:15:00 to 05-APR-17 23:15:00 (EST-5)
Location: (AND)ANDERSON CO ARP
Magnitude: 0.75 
Reported by: Public

Public reported penny size hail near the Anderson Airport.

Thunderstorm Wind in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:16:00 to 05-APR-17 23:32:00 (EST-5)
Location: STARR
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

EM and other sources reported widespread downed trees and power lines and light to moderate damage to structures. While the swath of damaging winds impacted  practically the entire county, the worst damage was found from Starr and Iva to the Honea Path area.

Thunderstorm Wind in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:32:00 to 05-APR-17 23:34:00 (EST-5)
Location: WEST PELZER
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Public reported more than a dozen trees snapped or uprooted in the Piedmont area, particularly in locations around Robinwood Lane. Minor roof damage was also reported to homes, while the roof was blown off one outbuilding and others were damaged by falling trees.

Hail in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:27:00 to 05-APR-17 23:27:00 (EST-5)
Location: BELTON
Magnitude: 1.25 
Reported by: Trained Spotter

Public reported larger than quarter size hail in Belton. Spotter reported half dollar size hail between Belton and Honea Path.

Hail in GREENVILLE, SOUTH CAROLINA
From 05-APR-17 23:42:00 to 05-APR-17 23:42:00 (EST-5)
Location: SIMPSONVILLE
Magnitude: 1.00 
Reported by: Trained Spotter

Public and a spotter reported quarter size hail in the Simpsonville area.

Thunderstorm Wind in PICKENS, SOUTH CAROLINA
From 05-APR-17 23:05:00 to 05-APR-17 23:05:00 (EST-5)
Location: EASLEY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

FD reported the roof was blown off a storage building on Walnut Hill Dr.

Thunderstorm Wind in ANDERSON, SOUTH CAROLINA
From 05-APR-17 23:16:00 to 05-APR-17 23:16:00 (EST-5)
Location: (AND)ANDERSON CO ARP
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at the Anderson Regional Airport measured a wind gust of 61 kts, or 70 mph.

Thunderstorm Wind in LAURENS, SOUTH CAROLINA
From 05-APR-17 23:45:00 to 05-APR-17 23:51:00 (EST-5)
Location: MT OLIVE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Highway Patrol reported multiple trees blown down west of Laurens.

Thunderstorm Wind in OCONEE, SOUTH CAROLINA
From 05-APR-17 23:03:00 to 05-APR-17 23:03:00 (EST-5)
Location: CHERRYS
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported about a half dozen trees snapped or uprooted along Carradine Road.