Alert archive / North Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 84, NWS Greenville-Spartanburg, SC

May 3, 2003Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 3, 2003, 7:42 PM EDT for Iredell County, North Carolina. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 3, 2003, 7:42 PM EDT (23:42 UTC)
Expired: May 3, 2003, 8:30 PM EDT
In force: 48 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Iredell County, NC

The radar

The Greer radar (KGSP), 149 km from the middle of the area, began a volume at 23:46 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 3, 3:20 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.7 hours before the alert went out and 100 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: 3 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1075 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: 141 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 032342
SVRGSP
NCC097-040030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
741 PM EDT SAT MAY 3 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN IREDELL COUNTY IN THE PIEDMONT OF NORTH CAROLINA

* UNTIL 830 PM EDT

* AT 741 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 13 MILES SOUTH OF STATESVILLE...OR ABOUT 8 MILES
  SOUTHWEST OF TROUTMAN...MOVING SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TROUTMAN AT 745 PM EDT.
  MOORESVILLE AT 805 PM EDT.

ALTHOUGH LARGE HAIL IS THE BIGGEST THREAT WITH THIS SEVERE
THUNDERSTORM...BRIEF DAMAGING WINDS COULD ALSO OCCUR.

LAT...LON 3562 8076 3551 8077 3554 8094 3561 8092
          3572 8103 3571 8075

$$
JAT/RWH

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 3, 3:25 PM EDT, 4 hours 17 minutes earlier.

Area forecast discussion, May 3, 3:25 PM EDT, 4 hours 17 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT SAT MAY 3 2003

UPDATE: UPDATING FOR SEVERE THUNDERSTORM WATCH 221 ALONG AND E OF
BLUE RIDGE.

SHORTWAVE MOVES SE ACROSS VA TONIGHT...SUPPORTING BEST CHANCE OF
CONVECTION ALONG I-40 CORRIDOR. COLD FRONT DROPS S THROUGH
AREA...REDUCING MOISTURE ENOUGH BY SUN TO DROP POPS. BY SUN NIGHT
SURFACE RIDGE ALONG EASTERN SEABOARD...WITH ISENTROPIC LIFT BRINGING
CLOUDS AND POPS BACK INTO FORECAST. ATMOSPHERE STABLE SUN NIGHT
...BUT DESTABILIZES MON AND TUE AS WEDGE LIKE FEATURE BEGINS TO
ERRODE...GULF OPENS...AND TN VALLEY COLD FRONT APPROACHES. REMNANTS
OF FRONT REACH AREA TUE.

COLD FRONT STALLS ACROSS THE AREA AS WAVES OF LOW PRESSURE MOVE
ALONG IT WEDNESDAY. FRONT SLOWLY MOVES SOUTH OF THE AREA FRIDAY AS
HIGH PRESSURE BUILDS IN FROM THE NORTH. SFC RIDGING CONTINUES
SATURDAY. LEFT CONVECTION IN THRU THU. KEPT TEMPS CLOSE TO GUIDANCE.
THIS MEANT RAISING MAXES THRU MUCH OF THE PERIOD. COOLER TEMPS BY
DAY 7.

FCSTID =    7
GSP   56  74  57  71 /  40  10  40  50
AND   56  75  59  73 /  30  10  40  50
CLT   54  74  54  69 /  40  10  40  40
HKY   51  72  53  64 /  50  10  30  40
AVL   49  70  56  67 /  40  10  30  40

.GSP...
GA...NONE.
NC...SEVERE THUNDERSTORM WATCH UNTIL 040000 ALONG AND E OF BLUE
RIDGE..
SC...SEVERE THUNDERSTORM WATCH UNTIL 040000 EXCEPT ABBEVILLE AND
GREENWOOD.

O7

Hazardous weather outlook, May 3, 5:30 AM EDT, 14 hours 12 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-031130-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
530 AM EDT SAT MAY 3 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA...
UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA.

.DAY ONE...TODAY

SCATTERED THUNDERSTORMS WILL REDEVELOP THIS AFTERNOON ACROSS THE
APPALACHIAN MOUNTAINS...AND MOVE ACROSS THE FOOTHILLS AND PIEDMONT
OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA DURING THE AFTERNOON
AND EVENING. IN ASSOCIATION WITH THESE STORMS...ANOTHER OUTBREAK OF
SEVERE WEATHER IS POSSIBLE ACROSS THE AREA. PLEASE SEE CAESPSGSP FOR
DETAILS.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON.

LANE

In the hours before

Special weather statement, May 3, 6:58 PM EDT, 44 minutes before

NCZ033>037-049-050-053>056-064-065-040000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
658 PM EDT SAT MAY 3 2003

...SEVERE THUNDERSTORM WATCH 221 CANCELLED FOR PARTS OF WESTERN
NORTH CAROLINA...

THE SEVERE THUNDERSTORM WATCH #221 HAS BEEN CANCELLED FOR THE
FOLLOWING COUNTIES IN WESTERN NORTH CAROLINA:

AVERY...MITCHELL...YANCEY...CALDWELL...ALEXANDER...IREDELL...DAVIE...
BUNCOMBE...BURKE...CATAWBA...HENDERSON AND TRANSYLVANIA.

SEVERE THUNDERSTORMS HAVE MOVED AWAY FROM THE AREA.

STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR THE LATEST WEATHER
INFORMATION.

BURRUS

Local storm report, May 3, 7:09 PM EDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
709 PM EDT SAT MAY 03 2003

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

655 PM     NEWTON                    NC   1.75 INCH HAIL
05/03/03   CATAWBA                        SPOTTER REPORTS GOLF BAL
                                          SIZE HAIL.

KRENTZ

Local storm report, May 3, 7:26 PM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
726 PM EDT SAT MAY 03 2003

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

724 PM     10 E CONCORD              NC   .88 INCH HAIL
05/03/03   CABARRUS                       SKYWARN SPOTTER REPORT
                                          NICKEL SIZED HAIL AT MT.
                                          PLEASANT.

722 PM     CONCORD                   NC   1.00 INCH HAIL
05/03/03   CABARRUS                       SKYWARN SPOTTER REPORTED
                                          QUARTER SIZED HAIL IN
                                          CONCORD.

BURRUS

Local storm report, May 3, 7:27 PM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
727 PM EDT SAT MAY 03 2003

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

718 PM     CABARRUS COUNTY           NC   .75 INCH HAIL
05/03/03   CABARRUS                       SHERIFF REPORTS FUNNEL
                                          CLOUD, DIME SIZE HAIL,
                                          AND PWR LINES DOWN.

724 PM     NEWTON                    NC   WIND DAMAGE
05/03/03   CATAWBA                        HAM OPERATOR REPORTS
                                          GUTTERS BLOWN OFF HOUSE.

KRENTZ

Local storm report, May 3, 7:30 PM EDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
730 PM EDT SAT MAY 03 2003

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

706 PM     10 SE SPARTANBURG         SC   .88 INCH HAIL
05/03/03   SPARTANBURG                    SPOTTER REPORTS NICKEL
                                          SIZE HAIL.

725 PM     3 E NEWTON                NC   WIND DAMAGE
05/03/03   CATAWBA                        SPOTTER REPORTED THAT
                                          WINDS TORE GUTTERS OFF
                                          HOUSE.

HG

Local storm report, May 3, 7:41 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
741 PM EDT SAT MAY 03 2003

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

735 PM     CONCORD                   NC   WIND DAMAGE
05/03/03   CABARRUS                       CABARRUS 911 REPORTS
                                          TREES DOWN IN CONCORD.

BURRUS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 4:22 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	38 min
May 3, 4:39 PM EDT	Severe Thunderstorm Warning	GSP	Polk	51 min
May 3, 4:44 PM EDT	Severe Thunderstorm Warning	GSP	Davie	46 min
May 3, 4:45 PM EDT	Severe Thunderstorm Warning	GSP	Alexander	45 min
May 3, 4:56 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	49 min
May 3, 5:17 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	58 min
May 3, 5:26 PM EDT	Severe Thunderstorm Warning	GSP	Alexander	49 min
May 3, 6:07 PM EDT	Severe Thunderstorm Warning	GSP	Catawba	53 min
May 3, 6:28 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	47 min
May 3, 6:30 PM EDT	Severe Thunderstorm Warning	GSP	Rowan	60 min
May 3, 6:59 PM EDT	Severe Thunderstorm Warning	GSP	Catawba	46 min
May 3, 7:03 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus	57 min
May 3, 7:53 PM EDT	Flash Flood Warning	GSP	Catawba, Iredell	2 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 2003 Every severe thunderstorm warning in 2003

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.