Hail and Damaging Wind in North Carolina, June 20, 2018

Name: Hail and Damaging Wind in North Carolina, June 20, 2018
Start: 2018-06-20T13:59
End: 2018-06-20T17:19
Location: North Carolina

June 20, 2018 · NWS GSP · 2 events in 2 counties and zones

Isolated to widely scattered thunderstorms developed during the afternoon throughout western North Carolina. At least one brief severe storm produced damaging winds across the Piedmont.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GSP wrote it up.

Isolated to widely scattered thunderstorms developed during the afternoon throughout western North Carolina. At least one brief severe storm produced damaging winds across the Piedmont.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before the first event at Jun 19, 6:37 PM EST, 19 hours 22 minutes earlier.

Area forecast discussion, Jun 19, 6:37 PM EST, 19 hours 22 minutes before

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Hazardous weather outlook, Jun 19, 3:19 PM EST, 22 hours 40 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
419 PM EDT Tue Jun 19 2018

GAZ010-017-NCZ033-035-036-048>053-056-058-059-062>065-068-069-
501>510-SCZ001>003-202030-
Rabun-Habersham-Avery-Alexander-Iredell-Madison-Yancey-Mitchell-
Swain-Haywood-Buncombe-Catawba-Graham-Northern Jackson-Macon-
Southern Jackson-Transylvania-Henderson-Cleveland-Lincoln-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains-
Pickens Mountains-Greenville Mountains-
419 PM EDT Tue Jun 19 2018

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

Isolated to widely scattered thunderstorms will continue to develop
across the mountains through the evening. Isolated storms may reach
severe levels and produce large hail and damaging winds. Otherwise,
the main threats will be cloud- to-ground lightning and torrential
downpours. Locally heavy rainfall due to slow-moving storms may cause
isolated flooding.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.
..Monday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ018-026-028-029-NCZ037-057-070>072-082-SCZ004>014-019-202030-
Stephens-Franklin-Hart-Elbert-Davie-Rowan-Gaston-Mecklenburg-
Cabarrus-Union-Greater Oconee-Greater Pickens-Greater Greenville-
Spartanburg-Cherokee-York-Anderson-Abbeville-Laurens-Chester-
Greenwood-
419 PM EDT Tue Jun 19 2018

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

Isolated to scattered thunderstorms will continue to develop across
the Piedmont this evening. The main threats from these storms include
cloud-to-ground lighting, small hail, torrential downpours, and gusty
winds.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

..Wednesday...Excessive heat possible. Heat index values will reach
100 to 105 across most of the Piedmont of the Carolinas and Northeast
Georgia.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.
..Monday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

JPT

The radar

The Greer radar (KGSP), 66 km away, was scanning. The volume nearest the first event began at 18:58 UTC.

Open the radar archive at this moment

Event by event

1 hail, 1 thunderstorm wind. Local standard time, as filed.

Hail, Henderson

When: June 20, 1:59 PM EST
Where: Henderson County, 0.56 mi E of Mills River
Measured: 0.75 in hail
Reported by: Social Media
Coordinates: 35.400, -82.570

Public reported (via Social Media) 3/4 inch hail in the Mills River area.

Thunderstorm Wind, Union

When: June 20, 5:19 PM EST
Where: Union County, 0.89 mi NW of Unionville
Measured: 50 kt (58 mph) estimated gust
Reported by: 911 Call Center
Coordinates: 35.090, -80.530

County comms reported multiple trees and power lines blown down in the area centered around Highway 601 and Unionville-Indian Trail Rd.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in North Carolina in 2018 Every state in 2018 This day in weather history Warnings in North Carolina, June 2018

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 768690, 768691.