Alert archive / North Carolina / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 323, NWS Greenville-Spartanburg, SC

September 25, 2022Haywood County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 25, 2022, 7:30 PM EDT for Haywood County, North Carolina. It was in force for 25 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
Sep 25, 2022, 7:30 PM EDT (23:30 UTC)
Expired
Sep 25, 2022, 7:55 PM EDT
In force
25 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Haywood County, NC

The radar

The Knoxville radar (KMRX), 78 km from the middle of the area, began a volume at 23:32 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

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 332 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, Nashville Metro, TN at 12:00Z on 2022-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 317 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, Nashville Metro, TN at 12:00Z on 2022-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 square meters per square second.19395878Sfc1 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
317 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 7:10 PM EDTSevere Thunderstorm WarningGSPAvery, Mitchell27 min
Sep 25, 7:41 PM EDTSevere Thunderstorm WarningGSPBuncombe, Haywood, Madison17 min
Sep 25, 7:54 PM EDTSpecial Weather StatementGSPBuncombe36 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2022Every severe thunderstorm warning in 2022

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.