Isolated to scattered thunderstorms developed across the Blue Ridge during the afternoon and moved into the Piedmont during the evening. Some of the storms produced severe weather in the form of large hail and locally damaging winds. Strong to severe supercell thunderstorms developed repeatedly and trained across portions of the foothills, particularly in Polk County, such that some locations received multiple periods of up to golf ball size hail.

Hail in BURKE, NORTH CAROLINA
From 10-MAY-18 13:00:00 to 10-MAY-18 13:00:00 (EST-5)
Location: ENOLA
Magnitude: 1.00 
Reported by: Broadcast Media

Media reported nickel to quarter size hail off Salem Rd.

Hail in POLK, NORTH CAROLINA
From 10-MAY-18 13:55:00 to 10-MAY-18 13:55:00 (EST-5)
Location: COLUMBUS
Magnitude: 0.75 
Reported by: Public

Public reported penny sized hail along Highway 108 just east of Columbus.

Hail in POLK, NORTH CAROLINA
From 10-MAY-18 14:35:00 to 10-MAY-18 14:55:00 (EST-5)
Location: SANDY PLAINS
Magnitude: 0.75 
Reported by: Public

Public reported an extended period of up to 3/4 inch hail as multiple strong to severe storms trained over Polk County.

Hail in POLK, NORTH CAROLINA
From 10-MAY-18 14:32:00 to 10-MAY-18 14:32:00 (EST-5)
Location: MILL SPG
Magnitude: 1.00 
Reported by: Emergency Manager

EM reported quarter size hail in the Mill Spring area as multiple strong to severe storms trained over Polk County.

Hail in POLK, NORTH CAROLINA
From 10-MAY-18 14:32:00 to 10-MAY-18 14:42:00 (EST-5)
Location: MILL SPG
Magnitude: 1.75 
Reported by: Emergency Manager

EM reported quarter size hail in the Mill Spring area as multiple strong to severe storms trained over Polk County. Public reported quarter to golf ball size hail on Highway 74.

Hail in POLK, NORTH CAROLINA
From 10-MAY-18 15:00:00 to 10-MAY-18 15:00:00 (EST-5)
Location: RODDY STORE
Magnitude: 1.00 
Reported by: Emergency Manager

Public reported quarter size hail as multiple strong to severe storms trained over Polk County.

Hail in POLK, NORTH CAROLINA
From 10-MAY-18 14:45:00 to 10-MAY-18 14:45:00 (EST-5)
Location: BEULAH
Magnitude: 0.75 
Reported by: NWS Employee

Former NWS employee reported penny size hail.

Hail in BURKE, NORTH CAROLINA
From 10-MAY-18 15:05:00 to 10-MAY-18 15:05:00 (EST-5)
Location: BURKE CHAPEL
Magnitude: 1.00 
Reported by: Public

Public reported hail of at least quarter size.

Hail in CATAWBA, NORTH CAROLINA
From 10-MAY-18 15:10:00 to 10-MAY-18 15:10:00 (EST-5)
Location: PROPST XRDS
Magnitude: 1.00 
Reported by: Trained Spotter

Spotter reported up to quarter size hail north of Cooksville.

Hail in ALEXANDER, NORTH CAROLINA
From 10-MAY-18 15:31:00 to 10-MAY-18 15:31:00 (EST-5)
Location: TAYLORSVILLE
Magnitude: 1.00 
Reported by: Broadcast Media

Media reported mostly nickel size hail with a few quarter size stones.

Thunderstorm Wind in ALEXANDER, NORTH CAROLINA
From 10-MAY-18 15:50:00 to 10-MAY-18 15:50:00 (EST-5)
Location: STONY PT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media reported multiple trees blown down.

Thunderstorm Wind in BURKE, NORTH CAROLINA
From 10-MAY-18 15:33:00 to 10-MAY-18 15:33:00 (EST-5)
Location: VALDESE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media reported multiple trees blown down.

Thunderstorm Wind in POLK, NORTH CAROLINA
From 10-MAY-18 16:04:00 to 10-MAY-18 16:04:00 (EST-5)
Location: TRYON
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

EM reported multiple trees blown down along I-26, with one on a tractor-trailer.

Thunderstorm Wind in POLK, NORTH CAROLINA
From 10-MAY-18 14:30:00 to 10-MAY-18 14:30:00 (EST-5)
Location: MILL SPG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

EM reported several trees blown down in the Mill Spring area.

Thunderstorm Wind in RUTHERFORD, NORTH CAROLINA
From 10-MAY-18 16:14:00 to 10-MAY-18 16:21:00 (EST-5)
Location: FOREST CITY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media reported numerous trees blown down, with some blocking Roads between Forest City and Ellenboro.

Thunderstorm Wind in ROWAN, NORTH CAROLINA
From 10-MAY-18 16:52:00 to 10-MAY-18 16:52:00 (EST-5)
Location: MILL BRIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported trees blown down on Highway 150.

Thunderstorm Wind in ROWAN, NORTH CAROLINA
From 10-MAY-18 17:05:00 to 10-MAY-18 17:05:00 (EST-5)
Location: SALISBURY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported several trees blown down on the west side of Salisbury, with one tree on a house on Mitchell Ave.

Thunderstorm Wind in UNION, NORTH CAROLINA
From 10-MAY-18 18:37:00 to 10-MAY-18 18:57:00 (EST-5)
Location: MONROE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

County comms reported trees and some power lines blown down from Monroe to the Marshville area. Damage was sporadic near Monroe and in Marshville, while numerous trees were reported down in the Wingate area.