Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 142, NWS Greenville-Spartanburg, SC

June 27, 2002Iredell County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 27, 2002, 5:02 PM EDT for Iredell County, Rowan County, North Carolina. It was in force for 43 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 27, 2002, 5:02 PM EDT (21:02 UTC)
Expired
Jun 27, 2002, 5:45 PM EDT
In force
43 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

Counties Iredell County, NC, Rowan County, NC

The radar

The Roanoke radar (KFCX), 150 km from the middle of the area, began a volume at 21:05 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, 9.0 hours before the alert went out and 82 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 2002-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 926 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 2002-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
926 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
763 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KGSP 272102
SVRGSP
NCC097-159-272145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
501 PM EDT THU JUN 27 2002

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN IREDELL COUNTY IN THE PIEDMONT OF NORTH CAROLINA
  WESTERN ROWAN COUNTY IN THE PIEDMONT OF NORTH CAROLINA

* UNTIL 545 PM EDT

* AT 501 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 9 MILES SOUTHEAST
  OF STATESVILLE...OR ABOUT 5 MILES SOUTHEAST OF TROUTMAN...MOVING
  NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CLEVELAND AT 515 PM EDT.

PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM.

$$
HG

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 27, 3:18 PM EDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jun 27, 3:18 PM EDT, 1 hour 44 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
318 PM EDT THU JUN 27 2002

UNSETTLED WEATHER TO CONTINUE THROUGH MOST OF THIS FORECAST PACKAGE.
CONVECTION FIRING THIS AFTERNOON AHEAD OF MID LEVEL
SHORTWAVE...GETTING AN ASSIST FROM RIGHT ENTRANCE REGION OF 25H JET
ACROSS CENTRAL APPALACHIANS...AND WITH MOISTURE CONVERGENCE IN LEE
TROF POSITION. WILL BLANKET NC MOUNTAINS WITH LIKELY POPS
OVERNIGHT...WITH HIGH CHANCE IN FOOTHILLS AND NORTHWEST PIEDMONT. TO
THE SOUTH AND EAST...WHERE SOME DOWNSLOPE HAS AIDED IN A SLIGHT
DRYING OF SURFACE DEWPOINTS...WILL HAVE POPS IN CHANCE CATEGORY.
WHILE MOST OF THE CONVECTION WILL DISSIPATE WITH LOSS OF
HEATING...COULD NOT RULE OUT SCATTERED CONVECTION ON AND OFF FOR
MOST OF THE NITE IN THE WEST...WITH MODELS DROPPING A SHEARED OUT
VORT LOBE OVER THE CWFA OVER THE NEXT 48 HOURS.

VORT LOBE SWINGS SLOWLY SOUTHWARD THROUGH THE DAY FRIDAY AND INTO
FRIDAY NITE...WITH ETA DRYING OUT THE ATMOSPHERIC COLUMN
FOOTHILLS/PIEDMONT BY FRIDAY EVENING. AREA REMAINS QUITE MOIST ON
THE AVN...WHICH HAS AN OVERDONE WET BIAS WITH THIS RUN.
WILL HOLD ON TO LIKELY POPS FRIDAY...SINCE MAXES TOMORROW SHOULD BE
JUST AS WARM AS TODAY/S. FLOW PICKS UP EVEN MORE AS EAST COAST TROF
CONTINUES DIGGING DOWN INTO THE SOUTHEAST STATES...BUT THIS WILL BE
COUNTERED BY SHORTWAVE RIDGING ATTEMPTING TO BUILD OVER THE AREA
FROM THE WEST.

COLD FRONT UPSTREAM HAS AN UNCERTAIN FUTURE...AT LEAST AS FAR AS
DRYING US OUT AND COOLING US DOWN. ALL THREE SHORT RANGE MODELS
SUGGEST THAT BOUNDARY WILL STAY TO OUR NORTH AND WEAKEN...RELOCATING
ITSELF TEMPORARILY ON THE AVN AS A WELL DEFINED LEE TROF LATE
SATURDAY. MEANWHILE...THE ETA CLOSES OFF A WAVE IN THE LEE
TROF...AND RETROGRADES THE LOW. THE AVN...CLOSES OFF A LOW SATURDAY
NITE AND SUNDAY. SO WHILE THERE IS DISAGREEMENT AS TO HOW THIS
SCENARIO WILL PLAY OUT...IT SEEMS WE CAN EXPECT A CLOSED UPPER LOW
SOMEWHERE IN OUR VICINITY DURING THE DAY SATURDAY. AFTER
COORDINATION WITH OTHER OFFICES...WILL INCLUDE MOSTLY DAYTIME POPS
THROUGH THE EXTENDED PERIOD...BUT KEEPING NEXT THURSDAY DRY FOR ALL
BUT THE MOUNTAINS.

FCSTID = 44
GSP   69  90  69  88 /  40  60  30  40
AND   70  91  70  88 /  40  60  30  40
CLT   69  90  70  87 /  40  60  30  40
HKY   68  87  67  86 /  50  60  30  40
AVL   64  82  64  83 /  60  60  30  40

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.

Nearby

Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.