Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 47, NWS Greenville-Spartanburg, SC

April 6, 2023Alexander County, Davie County, Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 6, 2023, 4:51 PM EDT for Alexander County, Davie County, Iredell County, North Carolina. It was in force for 39 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
Apr 6, 2023, 4:51 PM EDT (20:51 UTC)
Expired
Apr 6, 2023, 5:30 PM EDT
In force
39 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Alexander County, NC, Davie County, NC, Iredell County, NC

The radar

The Roanoke radar (KFCX), 137 km from the middle of the area, began a volume at 20:51 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, 8.9 hours before the alert went out and 89 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 2023-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 262 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 2023-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
262 J/kg
Mixed-layer CIN
-217 J/kg
Mixed-layer LCL
1135 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
105 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
Apr 6, 2:59 PM EDTSpecial Weather StatementGSPGaston31 min
Apr 6, 3:29 PM EDTSpecial Weather StatementGSPMecklenburg31 min
Apr 6, 3:40 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union35 min
Apr 6, 4:30 PM EDTSevere Thunderstorm WarningGSPAlexander, Caldwell, Iredell45 min
Apr 6, 5:15 PM EDTSpecial Weather StatementGSPRowan15 min
Apr 6, 5:29 PM EDTSpecial Weather StatementGSPDavie46 min
Apr 6, 3:27 PM EDTSpecial Weather StatementGSPYork33 min

Nearby

Severe Thunderstorm Warnings in North 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.