Alert archive / South Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 87, NWS Greenville-Spartanburg, SC

June 12, 2023Anderson County, Greenville County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 12, 2023, 12:32 AM EDT for Anderson County, Greenville County, Pickens County, South Carolina. It was in force for 43 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
Jun 12, 2023, 12:32 AM EDT (04:32 UTC)
Expired
Jun 12, 2023, 1:15 AM EDT
In force
43 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Anderson County, SC, Greenville County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 35 km from the middle of the area, began a volume at 04:36 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.5 hours before the alert went out and 236 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2023-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 721 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2023-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
721 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1139 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.5

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 Jun 11, 9:22 PM EDT, 3 hours 10 minutes earlier.

Area forecast discussion, Jun 11, 9:22 PM EDT, 3 hours 10 minutes before
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Hazardous weather outlook, Jun 11, 3:56 PM EDT, 8 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
356 PM EDT Sun Jun 11 2023

NCZ033-035>037-049-050-056-057-068>072-082-501>508-SCZ008-009-
012>014-019-122000-
Avery-Alexander-Iredell-Davie-Yancey-Mitchell-Catawba-Rowan-
Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Cherokee-York-Laurens-Union SC-Chester-Greenwood-
356 PM EDT Sun Jun 11 2023

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

.DAY ONE...This afternoon and tonight.

A cold front will approach the area out of the west this evening,
and into the overnight hours, bringing a second round of showers and
thunderstorms. The main potential hazards with any storms that become
severe are isolated damaging wind gusts, cloud-to-ground lightning,
and locally heavy rainfall.

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

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ010-017-018-026-028-029-NCZ048-051>053-058-059-062>065-509-510-
SCZ010-011-101>109-122000-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Madison-Swain-Haywood-
Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Polk Mountains-Eastern Polk-Anderson-Abbeville-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
356 PM EDT Sun Jun 11 2023

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

.DAY ONE...This afternoon and tonight.

A cold front will approach the area out of the west this evening,
and into the overnight hours, bringing a second round of showers and
thunderstorms. The main potential hazards with any storms that become
severe are damaging wind gusts, large hail, cloud-to-ground
lightning, and locally heavy rainfall.

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

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

In the hours before

Special weather statement, Jun 11, 10:02 PM EDT, 2 hours 30 minutes before
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Special weather statement, Jun 11, 10:58 PM EDT, 1 hour 34 minutes before
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Special weather statement, Jun 11, 11:03 PM EDT, 1 hour 29 minutes before
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Special weather statement, Jun 11, 11:27 PM EDT, 1 hour 5 minutes before
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Special weather statement, Jun 11, 11:35 PM EDT, 57 minutes before
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Special weather statement, Jun 12, 12:04 AM EDT, 28 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 3:20 PM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg40 min
Jun 12, 3:34 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg31 min
Jun 12, 3:52 PM EDTSpecial Weather StatementGSPUnion23 min
Jun 11, 9:59 PM EDTSpecial Weather StatementGSPAnderson31 min
Jun 11, 10:07 PM EDTSevere Thunderstorm WarningGSPAnderson34 min
Jun 11, 10:58 PM EDTSpecial Weather StatementGSPAnderson32 min
Jun 11, 11:27 PM EDTSpecial Weather StatementGSPGreenville33 min
Jun 11, 11:35 PM EDTSpecial Weather StatementGSPOconee25 min
Jun 12, 12:04 AM EDTSpecial Weather StatementGSPGreenville26 min
Jun 12, 12:25 AM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Pickens35 min
Jun 12, 12:34 AM EDTSpecial Weather StatementGSPGreenville26 min
Jun 12, 12:40 AM EDTSpecial Weather StatementGSPGreenville35 min
Jun 12, 1:22 AM EDTSpecial Weather StatementGSPGreenville23 min
Jun 12, 1:24 AM EDTSpecial Weather StatementGSPAnderson36 min
Jun 12, 1:45 AM EDTSpecial Weather StatementGSPGreenville30 min
Jun 12, 1:51 AM EDTSpecial Weather StatementGSPAnderson24 min
Jun 12, 2:15 AM EDTSpecial Weather StatementGSPSpartanburg45 min
Jun 12, 2:17 AM EDTSpecial Weather StatementGSPAbbeville43 min
Jun 12, 2:31 AM EDTSpecial Weather StatementGSPAnderson29 min
Jun 12, 2:56 AM EDTSpecial Weather StatementGSPGreenwood, Laurens34 min
Jun 12, 3:34 AM EDTSpecial Weather StatementGSPGreenwood26 min
Jun 12, 4:18 AM EDTAreal Flood AdvisoryGSPGreenville3 hr
Jun 12, 4:25 AM EDTAreal Flood AdvisoryGSPGreenville3 hr
Jun 12, 1:33 PM EDTAreal Flood AdvisoryGSPGreenville5 hr
Jun 11, 8:35 PM EDTSevere Thunderstorm WarningGSPFranklin, Stephens55 min
Jun 11, 9:35 PM EDTSpecial Weather StatementGSPStephens25 min
Jun 11, 10:02 PM EDTSpecial Weather StatementGSPStephens28 min
Jun 11, 11:03 PM EDTSpecial Weather StatementGSPStephens57 min
Jun 12, 1:27 AM EDTSpecial Weather StatementGSPFranklin, Hart33 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2023Every severe thunderstorm warning in 2023

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.