Alert archive / South Carolina / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 271, NWS Greenville-Spartanburg, SC

July 25, 2020Abbeville County, Greenwood County, Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 25, 2020, 5:46 PM EDT for Abbeville County, Greenwood County, Laurens County, South Carolina. It was in force for 44 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 25, 2020, 5:46 PM EDT (21:46 UTC)
Expired
Jul 25, 2020, 6:30 PM EDT
In force
44 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Abbeville County, SC, Greenwood County, SC, Laurens County, SC

The radar

The Greer radar (KGSP), 66 km from the middle of the area, began a volume at 21:46 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, 9.8 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 12:00Z on 2020-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 694 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 2020-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
694 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
-8 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 Jul 25, 4:39 PM EDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jul 25, 4:39 PM EDT, 1 hour 7 minutes before
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Hazardous weather outlook, Jul 25, 4:54 AM EDT, 12 hours 52 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
454 AM EDT Sat Jul 25 2020

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-260900-
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-
454 AM EDT Sat Jul 25 2020

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

.DAY ONE...Today and tonight.

Scattered afternoon to evening showers and thunderstorms are
expected today. Any storms that do develop will be capable of
producing cloud-to-ground lightning, gusty winds, and heavy rain.
Some storms have the potential to be strong to severe.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

In the hours before

Local storm report, Jul 25, 4:54 PM EDT, 52 minutes before
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Special weather statement, Jul 25, 4:55 PM EDT, 51 minutes before
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Special weather statement, Jul 25, 5:08 PM EDT, 38 minutes before
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Special weather statement, Jul 25, 5:14 PM EDT, 32 minutes before
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Special weather statement, Jul 25, 5:15 PM EDT, 31 minutes before
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Special weather statement, Jul 25, 5:35 PM EDT, 11 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 12:50 PM EDTSpecial Weather StatementGSPMcDowell25 min
Jul 25, 12:52 PM EDTSpecial Weather StatementGSPAvery23 min
Jul 25, 1:00 PM EDTSpecial Weather StatementGSPTransylvania15 min
Jul 25, 1:20 PM EDTSpecial Weather StatementGSPTransylvania25 min
Jul 25, 1:41 PM EDTSpecial Weather StatementGSPPolk19 min
Jul 25, 2:00 PM EDTSpecial Weather StatementGSPMcDowell15 min
Jul 25, 2:10 PM EDTSpecial Weather StatementGSPTransylvania35 min
Jul 25, 2:13 PM EDTSpecial Weather StatementGSPCaldwell32 min
Jul 25, 2:21 PM EDTSpecial Weather StatementGSPRutherford24 min
Jul 25, 2:25 PM EDTSpecial Weather StatementGSPHenderson35 min
Jul 25, 2:31 PM EDTSpecial Weather StatementGSPHaywood29 min
Jul 25, 2:34 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford41 min
Jul 25, 2:37 PM EDTSpecial Weather StatementGSPJackson38 min
Jul 25, 2:43 PM EDTSpecial Weather StatementGSPHenderson32 min
Jul 25, 3:02 PM EDTSpecial Weather StatementGSPRutherford28 min
Jul 25, 3:29 PM EDTSpecial Weather StatementGSPPolk31 min
Jul 25, 3:37 PM EDTSpecial Weather StatementGSPCaldwell23 min
Jul 25, 3:40 PM EDTSpecial Weather StatementGSPMadison35 min
Jul 25, 3:46 PM EDTSpecial Weather StatementGSPBuncombe29 min
Jul 25, 3:47 PM EDTSpecial Weather StatementGSPMitchell, Yancey28 min
Jul 25, 4:11 PM EDTSpecial Weather StatementGSPCaldwell34 min
Jul 25, 4:32 PM EDTSpecial Weather StatementGSPCatawba28 min
Jul 25, 5:14 PM EDTSpecial Weather StatementGSPLincoln31 min
Jul 25, 6:06 PM EDTSpecial Weather StatementGSPMecklenburg24 min
Jul 25, 6:08 PM EDTSpecial Weather StatementGSPRowan37 min
Jul 25, 6:14 PM EDTSpecial Weather StatementGSPDavie31 min
Jul 25, 6:27 PM EDTSevere Thunderstorm WarningGSPGaston, Mecklenburg35 min
Jul 25, 6:51 PM EDTAreal Flood AdvisoryGSPMecklenburg93 min
Jul 25, 11:54 AM EDTSpecial Weather StatementGSPOconee21 min
Jul 25, 12:21 PM EDTSpecial Weather StatementGSPOconee24 min
Jul 25, 12:46 PM EDTSevere Thunderstorm WarningGSPOconee59 min
Jul 25, 1:31 PM EDTSpecial Weather StatementGSPGreenville29 min
Jul 25, 2:06 PM EDTSpecial Weather StatementGSPGreenville24 min
Jul 25, 2:30 PM EDTSevere Thunderstorm WarningGSPGreenville, Pickens34 min
Jul 25, 3:07 PM EDTSpecial Weather StatementGSPAnderson23 min
Jul 25, 4:04 PM EDTSpecial Weather StatementGSPAbbeville26 min
Jul 25, 4:15 PM EDTSpecial Weather StatementGSPAnderson30 min
Jul 25, 4:30 PM EDTSpecial Weather StatementGSPAnderson30 min
Jul 25, 4:50 PM EDTSpecial Weather StatementGSPAbbeville25 min
Jul 25, 4:55 PM EDTSpecial Weather StatementGSPLaurens35 min
Jul 25, 5:05 PM EDTSevere Thunderstorm WarningGSPLaurens40 min
Jul 25, 5:08 PM EDTSpecial Weather StatementGSPAbbeville37 min
Jul 25, 5:10 PM EDTSevere Thunderstorm WarningGSPAbbeville, Anderson50 min
Jul 25, 5:15 PM EDTSpecial Weather StatementGSPLaurens30 min
Jul 25, 5:35 PM EDTSpecial Weather StatementGSPGreenwood25 min
Jul 25, 5:56 PM EDTSpecial Weather StatementGSPUnion34 min
Jul 25, 6:05 PM EDTAreal Flood AdvisoryGSPLaurens108 min
Jul 25, 6:16 PM EDTSpecial Weather StatementGSPYork29 min
Jul 25, 6:33 PM EDTSpecial Weather StatementGSPSpartanburg27 min
Jul 25, 7:03 PM EDTSpecial Weather StatementGSPYork27 min
Jul 25, 7:30 PM EDTSpecial Weather StatementGSPOconee30 min
Jul 25, 7:32 PM EDTSpecial Weather StatementGSPYork28 min
Jul 25, 7:39 PM EDTSevere Thunderstorm WarningGSPYork16 min
Jul 25, 2:11 PM EDTSpecial Weather StatementGSPStephens34 min
Jul 25, 3:22 PM EDTSpecial Weather StatementGSPFranklin38 min
Jul 25, 3:55 PM EDTSpecial Weather StatementGSPElbert35 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2020Every severe thunderstorm warning in 2020

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.