Alert archive / South Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 367, NWS Greenville-Spartanburg, SC

September 7, 2023Chester County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 7, 2023, 6:20 PM EDT for Chester County, South Carolina. It was in force for 40 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
Sep 7, 2023, 6:20 PM EDT (22:20 UTC)
Expired
Sep 7, 2023, 7:00 PM EDT
In force
40 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Chester County, SC

The radar

The Columbia radar (KCAE), 83 km from the middle of the area, began a volume at 22:22 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

Charleston AFB, SC (KCHS), launched 12:00Z, 10.3 hours before the alert went out and 226 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, Charleston AFB, SC at 12:00Z on 2023-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1150 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, Charleston AFB, SC at 12:00Z on 2023-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.1939Sfc1 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
1150 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1351 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 2:13 PM EDTSpecial Weather StatementGSPHenderson32 min
Sep 7, 2:23 PM EDTSevere Thunderstorm WarningGSPBuncombe, Henderson37 min
Sep 7, 2:25 PM EDTSpecial Weather StatementGSPMitchell35 min
Sep 7, 2:55 PM EDTSpecial Weather StatementGSPHenderson35 min
Sep 7, 3:27 PM EDTSpecial Weather StatementGSPHenderson33 min
Sep 7, 3:50 PM EDTSevere Thunderstorm WarningGSPHenderson, Polk40 min
Sep 7, 3:53 PM EDTSevere Thunderstorm WarningGSPAvery, Mitchell, Yancey52 min
Sep 7, 3:58 PM EDTSpecial Weather StatementGSPYancey32 min
Sep 7, 4:29 PM EDTSpecial Weather StatementGSPAvery31 min
Sep 7, 5:29 PM EDTSevere Thunderstorm WarningGSPMecklenburg22 min
Sep 7, 5:43 PM EDTSevere Thunderstorm WarningGSPGaston47 min
Sep 7, 5:47 PM EDTSpecial Weather StatementGSPBuncombe28 min
Sep 7, 5:58 PM EDTSevere Thunderstorm WarningGSPRutherford47 min
Sep 7, 6:23 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Lincoln52 min
Sep 7, 6:31 PM EDTSevere Thunderstorm WarningGSPJackson, Macon44 min
Sep 7, 6:34 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford41 min
Sep 7, 6:38 PM EDTSpecial Weather StatementGSPMecklenburg37 min
Sep 7, 6:47 PM EDTSevere Thunderstorm WarningGSPUnion43 min
Sep 7, 6:53 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford37 min
Sep 7, 7:03 PM EDTSevere Thunderstorm WarningGSPBurke, Catawba, Cleveland, Lincoln42 min
Sep 7, 7:11 PM EDTSpecial Weather StatementGSPMecklenburg34 min
Sep 7, 7:13 PM EDTSpecial Weather StatementGSPCleveland32 min
Sep 7, 7:23 PM EDTSpecial Weather StatementGSPJackson37 min
Sep 7, 7:28 PM EDTSevere Thunderstorm WarningGSPUnion47 min
Sep 7, 7:38 PM EDTSpecial Weather StatementGSPHaywood37 min
Sep 7, 7:46 PM EDTFlash Flood WarningGSPUnion2 hr
Sep 7, 7:47 PM EDTSpecial Weather StatementGSPCatawba28 min
Sep 7, 7:53 PM EDTSevere Thunderstorm WarningGSPCabarrus52 min
Sep 7, 7:55 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell50 min
Sep 7, 2:03 PM EDTSpecial Weather StatementGSPOconee27 min
Sep 7, 2:11 PM EDTSevere Thunderstorm WarningGSPGreenwood, Laurens49 min
Sep 7, 2:34 PM EDTSevere Thunderstorm Warning Considerable damage threatGSPOconee41 min
Sep 7, 2:38 PM EDTSpecial Weather StatementGSPLaurens22 min
Sep 7, 3:02 PM EDTSpecial Weather StatementGSPGreenwood28 min
Sep 7, 3:19 PM EDTSevere Thunderstorm WarningGSPGreenwood, Laurens41 min
Sep 7, 3:34 PM EDTSpecial Weather StatementGSPLaurens26 min
Sep 7, 3:40 PM EDTSevere Thunderstorm WarningGSPGreenwood, Laurens50 min
Sep 7, 3:46 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenville, Laurens44 min
Sep 7, 4:11 PM EDTSevere Thunderstorm WarningGSPGreenwood49 min
Sep 7, 4:19 PM EDTSevere Thunderstorm WarningGSPGreenwood, Laurens41 min
Sep 7, 4:22 PM EDTSevere Thunderstorm WarningGSPChester, York53 min
Sep 7, 4:42 PM EDTSevere Thunderstorm WarningGSPChester, York48 min
Sep 7, 4:55 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens50 min
Sep 7, 5:18 PM EDTSevere Thunderstorm WarningGSPYork27 min
Sep 7, 6:20 PM EDTSevere Thunderstorm Warning Considerable damage threatGSPCherokee, Spartanburg40 min
Sep 7, 6:24 PM EDTSpecial Weather StatementGSPAnderson36 min
Sep 7, 6:51 PM EDTSpecial Weather StatementGSPSpartanburg24 min
Sep 7, 4:33 PM EDTSpecial Weather StatementGSPHabersham27 min
Sep 7, 5:53 PM EDTSpecial Weather StatementGSPHart37 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.