Alert archive / South Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 207, NWS Greenville-Spartanburg, SC

July 28, 2023Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 28, 2023, 5:03 PM EDT for Greenville County, South Carolina. It was in force for 42 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
Jul 28, 2023, 5:03 PM EDT (21:03 UTC)
Expired
Jul 28, 2023, 5:45 PM EDT
In force
42 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

County Greenville County, SC

The radar

The Greer radar (KGSP), 14 km from the middle of the area, began a volume at 21:02 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 12:00Z, 9.1 hours before the alert went out and 259 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 12:00Z on 2023-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 700 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 12:00Z on 2023-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
700 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1263 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
44 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
Jul 28, 1:58 PM EDTSpecial Weather StatementGSPMcDowell32 min
Jul 28, 2:04 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, Caldwell41 min
Jul 28, 2:42 PM EDTSpecial Weather StatementGSPMacon33 min
Jul 28, 3:23 PM EDTSpecial Weather StatementGSPHenderson37 min
Jul 28, 3:56 PM EDTSpecial Weather StatementGSPCaldwell34 min
Jul 28, 4:10 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell35 min
Jul 28, 4:31 PM EDTSevere Thunderstorm WarningGSPAlexander, Iredell44 min
Jul 28, 4:55 PM EDTSpecial Weather StatementGSPCatawba35 min
Jul 28, 5:14 PM EDTSpecial Weather StatementGSPIredell46 min
Jul 28, 5:17 PM EDTSpecial Weather StatementGSPMadison28 min
Jul 28, 5:48 PM EDTSpecial Weather StatementGSPPolk27 min
Jul 28, 5:48 PM EDTSevere Thunderstorm WarningGSPMecklenburg42 min
Jul 28, 6:12 PM EDTSpecial Weather StatementGSPPolk33 min
Jul 28, 6:16 PM EDTSevere Thunderstorm WarningGSPPolk44 min
Jul 28, 6:21 PM EDTSpecial Weather StatementGSPCabarrus24 min
Jul 28, 7:08 PM EDTSpecial Weather StatementGSPRowan37 min
Jul 28, 7:21 PM EDTSpecial Weather StatementGSPMecklenburg54 min
Jul 28, 5:27 PM EDTSevere Thunderstorm WarningGSPPickens33 min
Jul 28, 5:33 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Pickens42 min
Jul 28, 6:24 PM EDTSpecial Weather StatementGSPOconee36 min
Jul 28, 2:38 PM EDTSpecial Weather StatementGSPRabun22 min
Jul 28, 5:51 PM EDTSpecial Weather StatementGSPFranklin24 min
Jul 28, 7:01 PM EDTSpecial Weather StatementGSPHart29 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.