Alert archive / North Carolina / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 207, NWS Greenville-Spartanburg, SC

July 19, 2020Henderson County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 19, 2020, 2:38 PM EDT for Henderson County, North Carolina. It was in force for 30 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 19, 2020, 2:38 PM EDT (18:38 UTC)
Expired
Jul 19, 2020, 3:08 PM EDT
In force
30 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Henderson County, NC

The radar

The Greer radar (KGSP), 56 km from the middle of the area, began a volume at 18:41 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.6 hours before the alert went out and 247 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, Greensboro/Hi Pt, NC at 12:00Z on 2020-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 470 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, Greensboro/Hi Pt, NC at 12:00Z on 2020-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
470 J/kg
Mixed-layer CIN
-164 J/kg
Mixed-layer LCL
1324 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
34 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 19, 1:38 PM EDTSpecial Weather StatementGSPBurke37 min
Jul 19, 2:15 PM EDTSpecial Weather StatementGSPHenderson30 min
Jul 19, 2:23 PM EDTSpecial Weather StatementGSPCaldwell22 min
Jul 19, 2:27 PM EDTHeat AdvisoryGSPCabarrus, Davie, Mecklenburg, Rowan, Union28 hr
Jul 19, 2:27 PM EDTSpecial Weather StatementGSPJackson33 min
Jul 19, 3:04 PM EDTSpecial Weather StatementGSPJackson26 min
Jul 19, 3:09 PM EDTSpecial Weather StatementGSPPolk36 min
Jul 19, 3:29 PM EDTSpecial Weather StatementGSPJackson31 min
Jul 19, 3:39 PM EDTSpecial Weather StatementGSPRutherford36 min
Jul 19, 4:01 PM EDTSpecial Weather StatementGSPYancey29 min
Jul 19, 4:34 PM EDTSpecial Weather StatementGSPAvery, Mitchell26 min
Jul 19, 4:57 PM EDTSpecial Weather StatementGSPCleveland33 min
Jul 19, 5:32 PM EDTSpecial Weather StatementGSPAvery28 min
Jul 19, 5:50 PM EDTSevere Thunderstorm WarningGSPAvery25 min
Jul 19, 6:25 PM EDTSpecial Weather StatementGSPGraham35 min
Jul 19, 6:27 PM EDTSpecial Weather StatementGSPMadison33 min
Jul 19, 6:31 PM EDTSpecial Weather StatementGSPIredell29 min
Jul 19, 6:35 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell, Rowan40 min
Jul 19, 7:15 PM EDTSpecial Weather StatementGSPRowan30 min
Jul 19, 7:48 PM EDTSpecial Weather StatementGSPRowan27 min
Jul 19, 4:16 PM EDTSpecial Weather StatementGSPSpartanburg29 min
Jul 19, 4:41 PM EDTSpecial Weather StatementGSPGreenville34 min
Jul 19, 5:56 PM EDTSpecial Weather StatementGSPChester34 min
Jul 19, 5:59 PM EDTSevere Thunderstorm WarningGSPChester31 min
Jul 19, 6:05 PM EDTSpecial Weather StatementGSPYork25 min
Jul 19, 6:22 PM EDTSpecial Weather StatementGSPYork23 min
Jul 19, 6:57 PM EDTSpecial Weather StatementGSPYork33 min
Jul 19, 3:01 PM EDTSpecial Weather StatementGSPRabun29 min
Jul 19, 6:48 PM EDTSpecial Weather StatementGSPFranklin27 min

Nearby

Severe Thunderstorm Warnings in North 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.