Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 128, NWS Greenville-Spartanburg, SC

June 21, 2018Elbert County, Hart County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 21, 2018, 5:00 PM EDT for Elbert County, Hart County, Georgia. It was in force for 45 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 21, 2018, 5:00 PM EDT (21:00 UTC)
Expired
Jun 21, 2018, 5:45 PM EDT
In force
45 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Elbert County, GA, Hart County, GA

The radar

The Greer radar (KGSP), 95 km from the middle of the area, began a volume at 21:03 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, 9.0 hours before the alert went out and 176 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 2018-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 354 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 2018-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
354 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1180 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 8:29 PM EDTSpecial Weather StatementGSPAlexander46 min
Jun 21, 6:50 PM EDTSpecial Weather StatementGSPGaston25 min
Jun 21, 7:13 PM EDTSpecial Weather StatementGSPMecklenburg32 min
Jun 21, 7:39 PM EDTSpecial Weather StatementGSPRutherford36 min
Jun 21, 7:41 PM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg34 min
Jun 21, 5:18 PM EDTSpecial Weather StatementGSPOconee27 min
Jun 21, 5:50 PM EDTSpecial Weather StatementGSPGreenville25 min
Jun 21, 6:11 PM EDTSpecial Weather StatementGSPGreenville34 min
Jun 21, 6:36 PM EDTSpecial Weather StatementGSPCherokee24 min
Jun 21, 7:01 PM EDTSpecial Weather StatementGSPCherokee29 min
Jun 21, 2:37 PM EDTSpecial Weather StatementGSPElbert38 min
Jun 21, 4:22 PM EDTSpecial Weather StatementGSPFranklin23 min
Jun 21, 4:42 PM EDTSpecial Weather StatementGSPHart33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018Every severe thunderstorm warning in 2018

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.