Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 207, NWS Greenville-Spartanburg, SC

June 21, 1998Henderson County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 21, 1998, 2:46 PM EDT for Henderson County, North Carolina. 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 21, 1998, 2:46 PM EDT (18:46 UTC)
Expired
Jun 21, 1998, 3:35 PM EDT
In force
49 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Henderson County, NC

The radar

The Greer radar (KGSP), 56 km from the middle of the area, began a volume at 18:48 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

Roanoke, VA (KRNK), launched 12:00Z, 6.8 hours before the alert went out and 338 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, Roanoke, VA at 12:00Z on 1998-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Roanoke, VA at 12:00Z on 1998-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1432 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 2:21 PM EDTSevere Thunderstorm WarningGSPTransylvania49 min
Jun 21, 3:11 PM EDTSevere Thunderstorm WarningGSPPolk49 min
Jun 21, 3:46 PM EDTSevere Thunderstorm WarningGSPRutherford49 min
Jun 21, 2:55 PM EDTSevere Thunderstorm WarningGSPAnderson60 min
Jun 21, 3:01 PM EDTSevere Thunderstorm WarningGSPGreenville64 min
Jun 21, 3:06 PM EDTSevere Thunderstorm WarningGSPPickens34 min
Jun 21, 3:21 PM EDTSevere Thunderstorm WarningGSPSpartanburg49 min
Jun 21, 3:59 PM EDTSevere Thunderstorm WarningGSPCherokee, Union46 min
Jun 21, 2:37 PM EDTSevere Thunderstorm WarningGSPFranklin, Stephens33 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1998Every severe thunderstorm warning in 1998

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.