South Carolina, 2020

Damaging Winds in South Carolina, June 21, 2020

June 21, 2020 · NWS GSP · 3 events in 2 counties and zones

Scattered thunderstorms developed across upstate South Carolina during the afternoon during the late afternoon and evening. One evening storm produced several downbursts from the city of Greenville into western Spartanburg County.

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
$260,000
Crop damage
None recorded
Events
3

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.

Scattered thunderstorms developed across upstate South Carolina during the afternoon during the late afternoon and evening. One evening storm produced several downbursts from the city of Greenville into western Spartanburg County.

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 21, 6:22 PM EST, 1 hour 23 minutes earlier.

Area forecast discussion, Jun 21, 6:22 PM EST, 1 hour 23 minutes before
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Hazardous weather outlook, Jun 21, 3:57 PM EST, 3 hours 48 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
457 PM EDT Sun Jun 21 2020

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-222100-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander-
Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba-
Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
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-Greater Oconee-
Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
457 PM EDT Sun Jun 21 2020

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

.DAY ONE...Tonight.

Isolated to scattered thunderstorms will continue to develop into
the evening. Coverage of storms will be better across the mountains.
A few of the storms could become severe with damaging wind gusts and
large hail. Heavy downpours and cloud- to-ground lightning will
accompany many of the storms.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

In the hours before

Special weather statement, Jun 21, 6:40 PM EST, 1 hour 5 minutes before
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Special weather statement, Jun 21, 6:50 PM EST, 55 minutes before
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Local storm report, Jun 21, 6:54 PM EST, 51 minutes before
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Special weather statement, Jun 21, 7:12 PM EST, 33 minutes before
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Special weather statement, Jun 21, 7:18 PM EST, 27 minutes before
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Special weather statement, Jun 21, 7:44 PM EST, 1 minute before
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The radar

The Greer radar (KGSP), 17 km away, was scanning. The volume nearest the first event began at 00:45 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Greenville

When
June 21, 7:45 PM EST
Where
Greenville County, 1.37 mi NNW of East Gantt to 0.89 mi NE of East Gantt
Measured
55 kt (63 mph) estimated gust
Property damage
$250,000
Reported by
Emergency Manager
Coordinates
34.819, -82.387

Emergency manager and NWS employee reported numerous trees blown down in the area centered around the Greenville Country Club. Multiple homes were damaged by fallen trees.

Thunderstorm Wind, Spartanburg

When
June 21, 8:02 PM EST to 8:15 PM EST
Where
Spartanburg County, 1.86 mi SSE of Grnvl Sprtnbrg Arpt to 1.14 mi E of Duncan
Measured
55 kt (63 mph) estimated gust
Property damage
$10,000
Reported by
Emergency Manager
Coordinates
34.876, -82.205

Public reported multiple large trees blown down and snapped branches down on vehicles on David Rd near GSP Airport. Public also reported large tree limbs snapped along South Danzler Rd and a tree down nearby on Christopher St in Duncan.

Thunderstorm Wind, Spartanburg

When
June 21, 8:30 PM EST
Where
Spartanburg County, 2.48 mi NNW of Fair Forest
Measured
50 kt (58 mph) estimated gust
Reported by
Law Enforcement
Coordinates
35.004, -82.034

Law enforcement reported trees blown down off John Dodd Rd.

What these are

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

More

Every storm in South Carolina in 2020Every state in 2020This day in weather historyWarnings in South Carolina, June 2020

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 2026-10-01. Each event’s entry at NCEI: 905234, 905235, 905319.