Alert archive / North Carolina / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 217

May 2, 200213 counties in North Carolina; 5 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at May 2, 2002, 9:30 PM EDT for 13 counties in North Carolina; 5 counties in South Carolina. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 2, 2002, 9:30 PM EDT (01:30 UTC)
Expired
May 3, 2002, 1:00 AM EDT
In force
4 hr
Issued by
the Storm Prediction Center

Counties Burke County, NC, Cabarrus County, NC, Catawba County, NC, Cleveland County, NC, Davidson County, NC, Gaston County, NC, Iredell County, NC, Lincoln County, NC, Mecklenburg County, NC, Polk County, NC, Randolph County, NC, Rowan County, NC, Rutherford County, NC, Cherokee County, SC, Greenville County, SC, Pickens County, SC, Spartanburg County, SC, York County, SC

Warnings issued inside it

5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 2, 9:42 PM EDTSevere Thunderstorm WarningGSPCleveland33 min
May 2, 9:47 PM EDTSevere Thunderstorm WarningGSPCatawba, Lincoln43 min
May 2, 10:23 PM EDTSevere Thunderstorm WarningGSPIredell37 min
May 2, 10:28 PM EDTSevere Thunderstorm WarningGSPRowan47 min
May 2, 10:49 PM EDTSevere Thunderstorm WarningRAHDavidson36 min

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.5 hours before the alert went out and 187 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 00:00Z on 2002-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 566 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 00:00Z on 2002-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.1939587897Sfc1 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
566 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1419 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 8:00 PM EDTSevere Thunderstorm WatchSPCAlleghany, Ashe, Avery, Buncombe, Cherokee, Clay and 12 more4 hr
May 2, 9:00 PM EDTSevere Thunderstorm WatchSPCAlamance, Bertie, Camden, Caswell, Chowan, Currituck and 27 more4 hr
May 3, 6:30 AM EDTSevere Thunderstorm WatchSPCAnderson, Oconee, Pickens6 hr
May 3, 3:15 PM EDTSevere Thunderstorm WatchSPCAbbeville, Anderson, Chester, Edgefield, Fairfield, Greenwood and 7 more5 hr
May 3, 6:00 PM EDTSevere Thunderstorm WatchSPCAiken, Allendale, Bamberg, Barnwell, Berkeley, Calhoun and 11 more4 hr

Nearby

Severe Thunderstorm Watches in North Carolina, 2002Severe Thunderstorm Watches in South Carolina, 2002Every severe thunderstorm watch in 2002

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.