Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 132, NWS Greenville-Spartanburg, SC

June 23, 2017Anderson County, Oconee County, Pickens County, South Carolina; Franklin County, Hart County, Stephens County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 23, 2017, 9:26 PM EDT for Anderson County, Oconee County, Pickens County, South Carolina; Franklin County, Hart County, Stephens County, Georgia. It was in force for 49 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 23, 2017, 9:26 PM EDT (01:26 UTC)
Expired
Jun 23, 2017, 10:15 PM EDT
In force
49 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Franklin County, GA, Hart County, GA, Stephens County, GA, Anderson County, SC, Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 78 km from the middle of the area, began a volume at 01:29 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, 1.4 hours before the alert went out and 193 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 2017-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 364 joules per kilogram.LCLEL10008507005003002001001 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 2017-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
364 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1358 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
172 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.8

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 23, 8:02 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Jun 23, 8:02 PM EDT, 1 hour 24 minutes before
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Hazardous weather outlook, Jun 23, 3:14 PM EDT, 6 hours 12 minutes before
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In the hours before

Special weather statement, Jun 23, 7:54 PM EDT, 1 hour 32 minutes before
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Special weather statement, Jun 23, 8:43 PM EDT, 43 minutes before
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Special weather statement, Jun 23, 9:08 PM EDT, 18 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 12:44 AM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg31 min
Jun 24, 1:16 AM EDTSpecial Weather StatementGSPCabarrus29 min
Jun 24, 1:56 PM EDTSpecial Weather StatementGSPBurke49 min
Jun 24, 2:23 PM EDTAreal Flood AdvisoryGSPBurke, Catawba3 hr
Jun 24, 2:34 PM EDTSpecial Weather StatementGSPHenderson26 min
Jun 24, 2:47 PM EDTSevere Thunderstorm WarningGSPHenderson, Transylvania43 min
Jun 24, 3:18 PM EDTSpecial Weather StatementGSPLincoln27 min
Jun 24, 4:16 PM EDTSpecial Weather StatementGSPRowan14 min
Jun 23, 8:43 PM EDTSpecial Weather StatementGSPOconee32 min
Jun 23, 10:45 PM EDTSpecial Weather StatementGSPGreenville30 min
Jun 24, 3:31 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg44 min
Jun 24, 4:05 PM EDTSpecial Weather StatementGSPSpartanburg25 min
Jun 24, 4:44 PM EDTSpecial Weather StatementGSPCherokee, Union46 min
Jun 24, 6:50 PM EDTSpecial Weather StatementGSPAbbeville, Greenwood55 min
Jun 23, 9:08 PM EDTSpecial Weather StatementGSPFranklin52 min
Jun 24, 4:41 PM EDTSpecial Weather StatementGSPFranklin, Stephens49 min
Jun 24, 5:26 PM EDTSpecial Weather StatementGSPElbert, Hart64 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017Severe Thunderstorm Warnings in Georgia, 2017Every severe thunderstorm warning in 2017

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.