Alert archive / South Carolina / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 221, NWS Greenville-Spartanburg, SC

August 11, 2026Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 11, 2026, 7:30 PM EDT for Spartanburg County, South Carolina. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 11, 2026, 7:30 PM EDT (23:30 UTC)
Expired: Aug 11, 2026, 8:15 PM EDT
In force: 45 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Spartanburg County, SC

The radar

The Greer radar (KGSP), 22 km from the middle of the area, began a volume at 23:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.5 hours before the alert went out and 228 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1951 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 941 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -96 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Aug 11, 7:22 PM EDT, 8 minutes earlier.

Area forecast discussion, Aug 11, 7:22 PM EDT, 8 minutes before

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In the hours before

Special weather statement, Aug 11, 5:50 PM EDT, 1 hour 40 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
550 PM EDT Tue Aug 11 2026

NCZ068>070-112230-
Gaston NC-Cleveland NC-Lincoln NC-
550 PM EDT Tue Aug 11 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LINCOLN...
SOUTHEASTERN CLEVELAND AND WESTERN GASTON COUNTIES THROUGH 630 PM
EDT...

At 550 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Shelby, or near Cherryville, moving southeast at
15 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Shelby, Gastonia, Kings Mountain, Cherryville, Bessemer City, South
Gastonia, Patterson Springs, Fallston, Waco, and Earl.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3520 8114 3517 8156 3542 8156 3550 8136
TIME...MOT...LOC 2150Z 329DEG 15KT 3540 8141

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

JPT

Special weather statement, Aug 11, 6:09 PM EDT, 1 hour 21 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
609 PM EDT Tue Aug 11 2026

NCZ070>072-112245-
Gaston NC-Cabarrus NC-Mecklenburg NC-
609 PM EDT Tue Aug 11 2026

...STRONG THUNDERSTORMS WILL IMPACT WEST CENTRAL CABARRUS...NORTHERN
MECKLENBURG AND NORTHEASTERN GASTON COUNTIES THROUGH 645 PM EDT...

At 609 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southwest of Downtown Concord to 3
miles southwest of Huntersville. Movement was southeast at 10 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Huntersville, Downtown Concord, Northeast Charlotte, West Concord,
Harrisburg, University City, Charlotte Motor Speedway, Hidden Valley,
Northwest Charlotte, and Lucia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3527 8067 3529 8097 3540 8106 3540 8096
      3543 8095 3545 8075 3533 8048
TIME...MOT...LOC 2209Z 294DEG 10KT 3533 8064 3539 8090

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

CAC

Special weather statement, Aug 11, 6:39 PM EDT, 51 minutes before

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Local storm report, Aug 11, 7:14 PM EDT, 16 minutes before

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Special weather statement, Aug 11, 7:20 PM EDT, 10 minutes before

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Local storm report, Aug 11, 7:23 PM EDT, 7 minutes before

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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 11, 2:16 PM EDT	Special Weather Statement	GSP	Caldwell	29 min
Aug 11, 2:18 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	42 min
Aug 11, 2:38 PM EDT	Special Weather Statement	GSP	Mitchell	37 min
Aug 11, 2:49 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	26 min
Aug 11, 2:50 PM EDT	Severe Thunderstorm Warning	GSP	Burke	17 min
Aug 11, 3:00 PM EDT	Special Weather Statement	GSP	Catawba	30 min
Aug 11, 3:01 PM EDT	Special Weather Statement	GSP	Caldwell	44 min
Aug 11, 3:31 PM EDT	Special Weather Statement	GSP	Burke	44 min
Aug 11, 3:44 PM EDT	Special Weather Statement	GSP	Davie, Iredell	46 min
Aug 11, 3:44 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell, Rutherford	46 min
Aug 11, 3:52 PM EDT	Special Weather Statement	GSP	Alexander	38 min
Aug 11, 4:19 PM EDT	Special Weather Statement	GSP	Caldwell	26 min
Aug 11, 4:27 PM EDT	Severe Thunderstorm Warning	GSP	McDowell	48 min
Aug 11, 4:27 PM EDT	Severe Thunderstorm Warning	GSP	Davie, Iredell, Rowan	63 min
Aug 11, 4:30 PM EDT	Special Weather Statement	GSP	Burke	30 min
Aug 11, 4:33 PM EDT	Special Weather Statement	GSP	Avery	27 min
Aug 11, 4:46 PM EDT	Special Weather Statement	GSP	Alexander, Caldwell	29 min
Aug 11, 4:50 PM EDT	Areal Flood Advisory	GSP	Davie, Iredell	4 hr
Aug 11, 5:01 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba, Cleveland, Gaston, Lincoln	44 min
Aug 11, 5:08 PM EDT	Severe Thunderstorm Warning	GSP	McDowell, Rutherford	37 min
Aug 11, 5:08 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell	26 min
Aug 11, 5:09 PM EDT	Special Weather Statement	GSP	Cabarrus	36 min
Aug 11, 5:12 PM EDT	Severe Thunderstorm Warning	GSP	Mitchell, Yancey	25 min
Aug 11, 5:15 PM EDT	Special Weather Statement	GSP	Haywood	30 min
Aug 11, 5:17 PM EDT	Special Weather Statement	GSP	Iredell	43 min
Aug 11, 5:20 PM EDT	Special Weather Statement	GSP	Cabarrus, Rowan	40 min
Aug 11, 5:20 PM EDT	Special Weather Statement	GSP	Henderson	25 min
Aug 11, 5:23 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Polk, Rutherford	37 min
Aug 11, 5:24 PM EDT	Special Weather Statement	GSP	Davie	51 min
Aug 11, 5:25 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Union	35 min
Aug 11, 5:29 PM EDT	Areal Flood Advisory	GSP	Caldwell	2 hr
Aug 11, 5:30 PM EDT	Special Weather Statement	GSP	Alexander	30 min
Aug 11, 5:32 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Iredell	22 min
Aug 11, 5:32 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	43 min
Aug 11, 5:43 PM EDT	Special Weather Statement	GSP	Catawba	47 min
Aug 11, 5:46 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Davie and 4 more	44 min
Aug 11, 5:50 PM EDT	Special Weather Statement	GSP	Cleveland	40 min
Aug 11, 5:54 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Rutherford	51 min
Aug 11, 5:58 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Union	47 min
Aug 11, 6:09 PM EDT	Special Weather Statement	GSP	Mecklenburg	36 min
Aug 11, 6:10 PM EDT	Areal Flood Advisory	GSP	Cabarrus	6 hr
Aug 11, 6:17 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	43 min
Aug 11, 6:21 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Lincoln, Mecklenburg	39 min
Aug 11, 6:29 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston	76 min
Aug 11, 6:33 PM EDT	Flash Flood Warning	GSP	Cabarrus	3 hr
Aug 11, 6:39 PM EDT	Special Weather Statement	GSP	Union	36 min
Aug 11, 6:49 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Gaston, Mecklenburg, Union	56 min
Aug 11, 4:33 PM EDT	Special Weather Statement	GSP	Oconee	42 min
Aug 11, 4:43 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	33 min
Aug 11, 5:31 PM EDT	Special Weather Statement	GSP	Oconee	29 min
Aug 11, 5:42 PM EDT	Special Weather Statement	GSP	Oconee	33 min
Aug 11, 6:00 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens	45 min
Aug 11, 6:03 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee	57 min
Aug 11, 6:35 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	40 min
Aug 11, 7:29 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Union, York	46 min
Aug 11, 7:40 PM EDT	Special Weather Statement	GSP	Oconee	50 min
Aug 11, 7:41 PM EDT	Areal Flood Advisory	GSP	Greenville, Spartanburg	2 hr
Aug 11, 7:43 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood	25 min
Aug 11, 7:45 PM EDT	Special Weather Statement	GSP	Chester, York	60 min
Aug 11, 7:48 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenville, Laurens, Spartanburg	43 min
Aug 11, 7:56 PM EDT	Areal Flood Advisory	GSP	Spartanburg	81 min
Aug 11, 7:20 PM EDT	Special Weather Statement	GSP	Hart	40 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2026 Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.