Alert archive / South Carolina / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 91, NWS Greenville-Spartanburg, SC

May 13, 2002Chester County, York County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 13, 2002, 6:39 PM EDT for Chester County, York County, South Carolina. It was in force for 36 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: May 13, 2002, 6:39 PM EDT (22:39 UTC)
Expired: May 13, 2002, 7:15 PM EDT
In force: 36 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

Counties Chester County, SC, York County, SC

The radar

The Greer radar (KGSP), 96 km from the middle of the area, began a volume at 22:38 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 13, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.7 hours before the alert went out and 180 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: 719 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 746 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 132239
SVRGSP
SCC023-091-132330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
639 PM EDT MON MAY 13 2002

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN YORK COUNTY IN UPSTATE SOUTH CAROLINA
  CHESTER COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 715 PM EDT

* AT 639 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
  SEVERE THUNDERSTORMS FROM 3 MILES EAST OF ROCK HILL TO 7 MILES
  SOUTHEAST OF CHESTER...MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  RICHBURG AT 640 PM EDT.
  FORT LAWN AT 650 PM EDT
  GREAT FALLS AT 705 PM.

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

$$
SAB/NED

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 13, 3:43 PM EDT, 2 hours 56 minutes earlier.

Area forecast discussion, May 13, 3:43 PM EDT, 2 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
343 PM EDT MON MAY 13 2002

GETTING VERY BUSY NOW WITH SEVERE WEATHER...NUMEROUS TREES DOWN IN
SWAIN COUNTY...IN THE FAR WESTERN REACHES OF OUR AREA OF
RESPONSIBILITY. ENTIRE CWFA IS BOXED...WITH NORTH CAROLINA PORTION
CONTINUING UNTIL 8 PM AND THE SOUTH CAROLINA/GEORGIA PORTION
TENTATIVELY PENCILED IN FOR A 6 PM EXPIRATION. THUNDERSTORMS ARE
MOVING INTO A FAVORED AREA FOR CONTINUED GROWTH AND
DEVELOPMENT...WITH IMPRESSIVE SPEED SHEAR PROFILE IN PLACE PER AREA
SOUNDINGS AND IN AN AREA OF UPPER LEVEL DIVERGENCE AS 25H JET SWINGS
INTO THE OHIO VALLEY. FRONT MAKING STEADY PROGRESS EASTWARD...BUT
WILL MAINTAIN LOW CHANCE POPS EARLY...ESPECIALLY WITH SEVERE WATCHES
IN PLACE.

MOSITURE EXPECTED TO DWINDLE RAPIDLY WITH FROPA...BUT SOME RESIDUAL
WRAP AROUND LOOKS TO WORK ITS WAY INTO OUR NORTHWEST COUNTIES LATE.
MAIN WEATHER FEATURE TONITE...AND FOR MOST OF TUESDAY...WILL BE
WIND...ESPECIALLY ACROSS HIGHER TERRAIN. MOMENTUM TRANSFER OF PROGD
ETA SOUNDINGS SUPPORTS SOME WIND GUSTS TO 50 KT OR SO. AVN NOT
NEARLY AS AGGRESSIVE. WILL CONTINUE 20 TO 30 MPH WINDS ACROSS THE
MOUNTAINS TONITE...DIMINISHING SOMEWHAT FROM THE SOUTHWEST
LATE...AND AT LEAST 15 TO 25 FOR HIGHER TERRAIN ON TUESDAY. WILL
HIGHLIGHT WIND GUSTS TO 45...JUST BELOW ADVISORY CRITERIA. FOR
FOOTHILLS/PIEDMONT...10 TO 20 AND GUSTY SHOULD SUFFICE.

DRY WEATHER LOOKS TO CONTINUE...BUT NOGAPS/UKMET AND LONGER RANGE
MRF (BUT NOT THE OPERATIONAL...THE ENSEMBLE MEMBERS) ALL SUPPORT A
FASTER FROPA FOR LATE WEEK...WITH CHANCE OF CONVECTION MOST OF
SATURDAY. WILL REMOVE POPS FROM SUNDAY AND MAKE MONDAY DRY. LITTLE
CHANGE TO LONGER RANGE TEMPERATURES.

FCSTID =
GSP   52  76  46  79 /  30   0   0   0
AND   52  78  48  80 /  30   0   0   0
CLT   52  76  45  78 /  30   0   0   0
HKY   51  73  42  74 /  30   0   0   0
AVL   49  67  41  74 /  30   0   0   0

.GSP...
GA...WIND ADVISORY FOR MOUNTAIN LAKES OVERNIGHT.
NC...WIND ADVISORY FOR MOUNTAIN LAKES OVERNIGHT.
SC...WIND ADVISORY FOR MOUNTAIN LAKES OVERNIGHT.

BURRUS

In the hours before

Special weather statement, May 13, 5:35 PM EDT, 1 hour 4 minutes before

NCZ033-048>053-058-059-062>065-132230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
535 PM EDT MON MAY 13 2002

SEVERE THUNDERSTORM WATCH #301 BEEN REMOVED FROM THE FOLLOWING
AREAS...THE MOUNTAINS OF WESTERN NORTH CAROLINA...WEST OF A LINE
FROM HENDERSONVILLE TO NEWLAND.

THE LINE OF SEVERE THUNDERSTORMS HAS MOVED OUT OF THE AREA
AND CONTINUES TO MOVE TOWARD THE EAST AT 40 MPH.

DICARLO

Local storm report, May 13, 5:54 PM EDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
554 PM EDT MON MAY 13 2002

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

545 PM     1 N BELMONT               NC   WIND DAMAGE
05/13/02   GASTON                         FLAT ROOF CAME OFF BRICK
                                          BUILDING

536 PM     7 NE GAFFNEY              SC   1.00 INCH HAIL
05/13/02   CHEROKEE                       QUARTER SIZE HAIL NEAR
                                          BLACKSBURG

RBN

Local storm report, May 13, 6:12 PM EDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
612 PM EDT MON MAY 13 2002

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

600 PM     SALISBURY                 NC   WIND DAMAGE
05/13/02   ROWAN                          NUMEROUS TREES DOWN
                                          CHINAGROVE...LANDIS AND
                                          SALISBURY.

610 PM     CONCORD                   NC   WIND DAMAGE
05/13/02   CABARRUS                       TREES AND POWER LINES
                                          DOWN IN CONCORD AND POWER
                                          OUT IN MT PLEASANT

RBN

Local storm report, May 13, 6:20 PM EDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
620 PM EDT MON MAY 13 2002

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

613 PM     5 E LINCOLNTON            NC   WIND DAMAGE
05/13/02   LINCOLN                        ESTIMATED WIND GUST TO 65
                                          MPH

RBN

Local storm report, May 13, 6:20 PM EDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
620 PM EDT MON MAY 13 2002

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

530 PM     5 E LINCOLNTON            NC   WIND DAMAGE
05/13/02   LINCOLN                        ESTIMATED WIND GUST TO 65
                                          MPH

CORRECTED TIME OF EVENT

RBN

Local storm report, May 13, 6:37 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
637 PM EDT MON MAY 13 2002

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

615 PM     YORK                      SC   WIND DAMAGE
05/13/02   YORK                           TREES DOWN ACROSS
                                          NORTHERN PART OF COUNTY
                                          INCLUDING ONE ON A HOUSE
                                          AND ANOTHER ON A VEHICLE.

RBN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 3:51 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	39 min
May 13, 4:20 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Pickens	40 min
May 13, 4:53 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	27 min
May 13, 5:00 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	25 min
May 13, 5:01 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	24 min
May 13, 5:11 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee	34 min
May 13, 5:16 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	14 min
May 13, 5:38 PM EDT	Severe Thunderstorm Warning	GSP	York	22 min
May 13, 5:50 PM EDT	Severe Thunderstorm Warning	GSP	Greenwood	10 min
May 13, 6:03 PM EDT	Severe Thunderstorm Warning	GSP	York	27 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2002 Every 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.