Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 175, NWS Greenville-Spartanburg, SC

August 24, 2000Chester County, York County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 24, 2000, 6:32 PM EDT for Chester County, York County, South Carolina. It was in force for 43 min. 1 report 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
Aug 24, 2000, 6:32 PM EDT (22:32 UTC)
Expired
Aug 24, 2000, 7:15 PM EDT
In force
43 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 22:35 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

TimeReportWhereRemark
Aug 24, 6:35 PM EDTThunderstorm Wind 55 EChester, SCA number of trees and power lines were blown down in and around the city.

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, 10.5 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2000-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 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 2000-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
51 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
1261 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
44 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 242232
SVRGSP
SCC023-091-242315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
632 PM EDT THU AUG 24 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 715 PM EDT

* AT 632 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
  SEVERE THUNDERSTORMS FROM 14 MILES EAST OF ROCK HILL TO 16 MILES
  SOUTHWEST OF CHESTER...MOVING SOUTH AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BLACKSTOCK AT 640 PM EDT
  FORT LAWN AT 645 PM EDT
  GREAT FALLS AT 700 PM EDT

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.

$$

PM/RN

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 Aug 24, 2:30 PM EDT, 4 hours 2 minutes earlier.

Area forecast discussion, Aug 24, 2:30 PM EDT, 4 hours 2 minutes before
SCZ001>014-019-NCZ033>037-048>059-062>072-082-GAZ010-017-018-026-028-
029-250045-

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
230 PM EDT THU AUG 24 2000

MODELS IN GOOD AGREEMENT WITH SWINGING A SHORT WAVE ACROSS THE CWA
TONIGHT. WE ALREADY HAVE A LEE SIDE TROF PROVIDING SOME MOISTURE
CONVERGENCE AND DIURNAL WARMING WITH GOOD SUNSHINE OVER SOUTHERN
SECTIONS HAS COMBINED WITH DEWPOINTS IN THE UPPER 60S TO INCREASE
INSTABILITY EARLY THIS AFTERNOON. WE ALSO WILL SEE ADDITIONAL
SUPPORT ALOFT WORK IN AS WE GET INTO THE RIGHT ENTRANCE REGION OF AN
UPPER JET THAT IS SINKING SOUTH ALONG THE EAST COAST. WITH ALL OF
THIS IN MIND...WE SHOULD SEE SCATTERED SHOWERS AND THUNDERSTORMS
LATE TODAY AND OVERNIGHT. SOME OVER SOUTHERN SECTIONS COULD BE
STRONG WITH THE BEST COVERAGE LIKELY TO BE AROUND THE CHARLOTTE
METRO AREA.

A COLD FRONT WILL DROP SOUTH INTO THE LEE TROF TONIGHT AND SHOULD
PUSH SOUTH THROUGH THE CWA BY EARLY FRIDAY. WINDS NORTH OF THE FRONT
BY FRIDAY MORNING WILL BECOME NORTHWEST TO NORTH OVER THE MTNS AND
NORTHEAST ELSEWHERE. ALTHOUGH THE MID AND UPPER TROPOSPHERE WILL DRY
OUT DURING THE EARLY MORNING HOURS...THE LOWER LAYERS STAY MOIST
THROUGH MUCH OF FRIDAY. WEST SECTIONS SHOULD SCATTER OUT DURING THE
MORNING ALLOWING PLENTIFUL SUNSHINE. BUT SOME THICKER STRATO-CU WILL
BE POSSIBLE IN THE NORTHEAST FLOW OVER EAST SECTIONS AND THIS WILL
MAKE TEMP FORECASTS TRICKY.

THE WEEKEND INTO EARLY NEXT WEEK LOOK DRY WITH TEMPS GRADUALLY WARMING
A FEW DEGREES THROUGH THE PERIOD.

FCSTID = 69
GSP   70  87  67  86 /  40  10  10  10
AND   70  87  67  87 /  30  10  10  10
CLT   69  85  67{  85 /  50  10  10  20
HKY   67  83  65  83 /  40  10  10  10
AVL   65  83  60  82 /  40  10  10  10

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

RBN

In the hours before

Special weather statement, Aug 24, 2:29 PM EDT, 4 hours 3 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-250300-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
229 PM EDT THU AUG 24 2000

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE LATE THIS AFTERNOON AND
EVENING ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...

DIMINISHING CLOUDINESS THROUGHOUT THE AFTERNOON AND AN INCREASE IN
LOW LEVEL MOISTURE HAVE CREATED MODERATE INSTABILITY ACROSS MUCH OF
THE AREA. A TROUGH OF LOW PRESSURE OVER THE PIEDMONT WILL COMBINE
WITH A PASSING UPPER LEVEL DISTURBANCE THIS EVENING TO TRIGGER
SHOWERS AND THUNDERSTORMS IN THIS UNSTABLE AIRMASS.

THUNDERSTORMS WILL LIKELY BEGIN TO FORM OVER PIEDMONT SECTIONS NEAR
THE TROUGH...AND IN THE WESTERN NORTH CAROLINA MOUNTAINS AHEAD OF
THE APPROACHING UPPER LEVEL DISTURBANCE...LATE THIS AFTERNOON. THE
FOCUS OF THUNDERSTORM ACTIVITY WILL THEN STEADILY SHIFT TOWARD THE
PIEDMONT SECTION OF THE CAROLINAS THIS EVENING. WHILE ISOLATED
SEVERE THUNDERSTORMS ARE POSSIBLE ANYWHERE IN THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA THIS EVENING...THE GREATEST THREAT WILL BE
EAST OF INTERSTATE 77 OR SOUTH OF INTERSTATE 85...ESPECIALLY NEAR
THE CHARLOTTE METROPOLITAN AREA.

SPOTTER GROUPS SHOULD MONITOR THE SITUATION IN CASE ACTIVATION IS
NEEDED LATER THIS AFTERNOON OR EVENING. STAY TUNED TO NOAA WEATHER
RADIO OR YOUR FAVORITE MEDIA OUTLET FOR THE LATEST INFORMATION.

GERAPETRITIS
Local storm report, Aug 24, 4:19 PM EDT, 2 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
419 PM EDT THU AUG 24 2000

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

351 PM     5 W COLUMBUS              NC   OTHER
08/24/00   POLK                           911 REPORTED POWER LINES
                                          DOWNED BETWEEN COLUMBUS
                                          AND TRLYON.  NOT KNOWN
                                          WHETHER LIGHTNING OR WIND.

JONES
NNNN
Local storm report, Aug 24, 4:55 PM EDT, 1 hour 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
455 PM EDT THU AUG 24 2000

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

415 PM     COLUMBUS                  NC   WIND DAMAGE
08/24/00   POLK                           SD REPORTED TREES AND
                                          POWER LINES BLOWN
                                          DOWN...FIRST REPORT 410
                                          PM...LAST REPORT 420 PM

432 PM     STARR                     SC   WIND DAMAGE
08/24/00   ANDERSON                       RESIDENT REPORTED MINI
                                          BUILDING BLOWN AWAY.
                                          REPORTED AS POSSIBLE
                                          TORNADO.

JONES
NNNN
Local storm report, Aug 24, 5:15 PM EDT, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
515 PM EDT THU AUG 24 2000

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

500 PM     COWPENS                   SC   WIND DAMAGE
08/24/00   SPARTANBURG                    SPARTANBURG COMMUNIATIONS
                                          RELAYED REPORTS OF
                                          TREES/LINES DOWN COWPENS
                                          AREA.

435 PM     2 N ANDERSON              SC   WIND DAMAGE
08/24/00   ANDERSON                       SPOTTER REPORTED HE
                                          ENCOUNTERED ARcEA OF DOWNED
                                          TREES...FELL ON AND
                                          SNAPPED POWER POLE.  TIME
                                          ESTIMATED BY RADAR.

JONES
NNNN
Local storm report, Aug 24, 5:20 PM EDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
520 PM EDT THU AUG 24 2000

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

505 PM     4 E COWPENS               SC   WIND DAMAGE
08/24/00   CHEROKEE                       SPOTTER REPORTED 2 OAK
                                          TREES DOWN

RB
Local storm report, Aug 24, 5:47 PM EDT, 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
547 PM EDT THU AUG 24 2000

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

510 PM     5 W GAFFNEY               SC   WIND DAMAGE
08/24/00   CHEROKEE                       911 RELAYED REPORT OF
                                          SEVERAL TREES BLOWN
                                          DOWN...ALSO PEA HAIL.

JONES
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 4:12 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg48 min
Aug 24, 4:14 PM EDTSevere Thunderstorm WarningGSPAnderson46 min
Aug 24, 4:55 PM EDTSevere Thunderstorm WarningGSPAbbeville50 min
Aug 24, 4:58 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg47 min
Aug 24, 5:48 PM EDTSevere Thunderstorm WarningGSPChester, York42 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2000Every 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.