Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 29, NWS Greenville-Spartanburg, SC

May 2, 2000Cabarrus County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 2, 2000, 6:50 PM EDT for Cabarrus County, Rowan County, North Carolina. It was in force for 40 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 2, 2000, 6:50 PM EDT (22:50 UTC)
Expired: May 2, 2000, 7:30 PM EDT
In force: 40 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

Counties Cabarrus County, NC, Rowan County, NC

The radar

The Greer radar (KGSP), 168 km from the middle of the area, began a volume at 22:53 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.

What was reported inside it

Time	Report	Where	Remark
May 2, 7:28 PM EDT	Hail 0.75	Kannapolis, NC
May 2, 7:28 PM EDT	Hail 1	Salisbury, NC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.8 hours before the alert went out and 85 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1669 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 022249
SVRGSP
NCC025-159-022330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
650 PM EDT TUE MAY 2 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CABARRUS COUNTY IN PIEDMONT NORTH CAROLINA
  SOUTHERN ROWAN COUNTY IN PIEDMONT NORTH CAROLINA

* UNTIL 730 PM EDT

* AT 650 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 10 MILES NORTHWEST
  OF CONCORD...OR ABOUT 4 MILES WEST OF ENOCHVILLE...MOVING EAST AT
  30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ENOCHVILLE AT 652 PM EDT
  LANDIS AT 655 PM EDT
  KANNAPOLIS AT 658 PM EDT
  CHINA GROVE AT 700 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 SEVERE THUNDERSTORM.

$$

BURRUS

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 May 2, 1:50 PM EDT, 5 hours earlier.

Area forecast discussion, May 2, 1:50 PM EDT, 5 hours before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
150 PM EDT TUE MAY 2 2000

LOCATION OF SFC FRONT AGREES WELL WITH THE 12Z ETA. FRONT IS PROGGED
TO DEVELOP ALONG BARRIER COMPONENT AND SLIDE JUST S AND W OF THE
CWA BY WED MORNING. HIGH CONTINUES TO BUILD INTO THE REGION...
PUSHING SFC CONVERGENCE WELL W OF THE AREA WED AFTN THROUGH THU.
THIS RAISES SOME INTERESTING QUESTIONS AS THERE ARE RATHER LARGE
MODEL DIFFERENCES IN THE QPF FIELDS.

THE FIRST PERIOD LOOKS REASONABLE AS THE ETA GENERATES CONVECTIVE
PCPN ALONG ZONE OF STRONG SFC CONVERGENCE AS THE BACK DOOR FRONT
DROPS INTO THE NC PIEDMONT. THIS CONVECTION MOVES SE...ALONG THE
SFC BNDRY...OVERNIGHT. WEAK H5 MINOR WAVE AND RETREATING H3 JET
LEND SUPPORT FROM SOME KIND OF RELATIVELY WEAK MCS. LAPSE RATES ARE
NOT VERY STEEP...THOUGH LVLV MOISTURE IS INCREASING. CAPES AVERAGING
AROUND 1000 OVER MOST OF THE CWA ATTM. THUS...SOME CONVECTION IS
POSSIBLE ALMOST ANYWHERE THIS EVENING. WL KEEP AN EYE ON TRENDS...BUT
PLAN TO HAVE HIGHEST POPS ERN ZONES...AND LOWER POPS W.

BY WED MOST OF THE BNDRY LAYER FLOW OVER THE CWA IS E TO ENE...AND
RATHER BRISK IF THE ETA IS CORRECT. HARD TO IMAGINE MUCH CONVECTION
WL DEVELOP WHERE THERE IS NO SFC CONVERGENCE AND PRACTICALLY NO
FORCING ALOFT AS UPPER RIDGE ROLLS OVER THE AREA. THINK MOST
CONVECTION WOULD DEVELOP ON SFC CONVERGENCE WELL W OF THE CWA. THE
MTNS...HOWEVER...SHOULD SEE SOME TSRA DEVELOP W/DIFFERENTIAL HEATING
AND AS THEY WL BE ABOVE THS COLD POOL. ETA HAS LLVL DWPTS POOL
ALONG AND N OF THE BNDRY W/M60 DWPTS FEEDING ANYTHING THAT DOES GO
IN THE HIGHER ELEVATIONS. WL UNDERCUT TEMPS AS WE WL HAVE NE FLOW
AND A CLOUD DECK OVER THE COLD POOL. 12Z SFC TRAJECTORIES HAVE THE
SOURCE REGION FOR THE AIRMASS NOT TOO FAR TO THE N...SO WL ONLY
UNDERCUT RAFS BY 5 OR 6 DEG UNLESS OTHER OFFICES OBJECT.

ETA DEVELOPS A HUGE AREA OF RAIN OVER THE SW CWA WED NGHT AND KEEPS
IT THERE THROUGH THU. WE/D BE LOOKING AT 2 INCHES OF RAIN IF IT WAS
RIGHT. THE AVN IS FURTHER SW AND THE UKMET SIMPLY HAS A LOT LESS
PCPN. AGAIN...THINK MOST CONVECTION WL FORM ALONG SFC CONVERGENCE W
OF CWA...WITH ONLY THE MTN ELEVATIONS REALLY SEEING ANY SIG PCPN.
HARD TO COMPLETELY ARGUE AGAINST THE ETA HOWEVER...AND WL BUMP POPS
UP TO GOOD CHANCE SW HALF OF CWA WED NGHT AND THU.

STILL LOOKS WARM WITH AFTN AND EVENING TSRA IN THE EXTENDED.

PRELIMINARY NUMBERS:

AVL 53/72/54/73/56 3355
CLT 57/73/59/76/59 5333
GSP 58/74/60/77/60 3344

.GSP...NONE.

MCAVOY

In the hours before

Local storm report, May 2, 6:07 PM EDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
607 PM EDT TUE MAY 2 2000

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

605 PM     GREER                     SC   0.75 INCH HAIL
05/02/00   SPARTANBURG                    DIME-SIZED HAIL FELL
                                          AT THE NWS OFFICE AT
                                          GREENVILLE-SPARTANBURG
                                          AIRPORT.

Local storm report, May 2, 6:16 PM EDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
616 PM EDT TUE MAY 02 2000

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

600 PM     LINCOLNTON                NC   1.75 INCH HAIL
05/02/00   LINCOLN                        EMA COMMUNICATIONS
                                          REPORTED GOLF BALL SIZE
                                          HAI/L ON THE EAST SIDE ON
                                          LINCOLNTON.  ONE TREE
                                          DOWN.

TJB
NNNN

Local storm report, May 2, 6:22 PM EDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
622 PM EDT TUE MAY 02 2000

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

615 PM     BOGER CITY                NC   WIND DAMAGE
05/02/00   LINCOLN                        HAM OPERATOR HAD TREES
                                          DOWN AND DIME HAIL AT
                                          BOGER CITY EAST OF
                                          LINCOLNTON.

TJB
NNNN

Local storm report, May 2, 6:29 PM EDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
629 PM EDT TUE MAY 02 2000

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

625 PM     SOUTH OF DENVER           NC   1.00 INCH HAIL
05/02/00   LINCOLN                        HAM OPERATOR HAD QUARTER
                                          SIZE HAIL ONGOING JUST
                                        `  SOUTH OF DENVER IN IN
                                          NORTHEAST LINCOLN CO.

TJB
NNNN

Local storm report, May 2, 6:40 PM EDT, 10 minutes before

ZCZC CAEWRKLSR 000
TTAA00 KGSP 022240

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
640 PM EDT TUE MAY 02 2000

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

640 PM     S OF MOORESVILLE          NC   1.00 INCH HAIL
05/02/00   IREDELL                        HAM OPERATOR HAD QUARTER
                                          SIZE HAIL ON RALEIGH
                                          SCHOOL ROAD AT
                                          MOORESVILLE.

TJB
NNNN

Local storm report, May 2, 6:45 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
645 PM EDT TUE MAY 02 2000

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

639 PM     CORNELIUS                 NC   .88 INCH HAIL
05/02/00   MECKLENBURG                    HAM OPERATOR HAD NICKEL
                                          SIZE HAIL ON I-77 AT
                                          CORNELIUS.

TJB
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 5:30 PM EDT	Severe Thunderstorm Warning	GSP	Lincoln	45 min
May 2, 6:14 PM EDT	Severe Thunderstorm Warning	GSP	Iredell, Lincoln, Mecklenburg	46 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.