Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 73, NWS Greenville-Spartanburg, SC

May 25, 2000Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 25, 2000, 7:04 PM EDT for Spartanburg County, South Carolina. It was in force for 41 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 25, 2000, 7:04 PM EDT (23:04 UTC)
Expired: May 25, 2000, 7:45 PM EDT
In force: 41 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Spartanburg County, SC

The radar

The Greer radar (KGSP), 22 km from the middle of the area, began a volume at 23:01 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 25, 7:25 PM EDT	Thunderstorm Wind 50 E	Reidville, SC
May 25, 7:40 PM EDT	Thunderstorm Wind 65 E	Roebuck, SC

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 watch it was issued in

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

Issued	Product	Office	Lasted
May 25, 3:45 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.1 hours before the alert went out and 289 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: 2105 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 699 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.7

Open this sounding in Storm Lab

The text

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

579 
WUUS52 KGSP 252304
SVRGSP
SCC083-252345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
704 PM EDT THU MAY 25 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 745 PM EDT

* AT 704 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM WITH DAMAGING WINDS 8 MILES NORTHEAST OF GREENVILLE...
  OR ABOUT 10 MILES WEST OF DUNCAN...MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DUNCAN AT 720 PM EDT
  REIDVILLE AT 725 PM EDT
  BOILING SPRINGS SC AT 730 PM EDT
  SPARTANBURG AT 735 PM EDT
  PAULINE AT 740 PM EDT

SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OF 60 TO 100 MPH. THESE
WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE
HOMES AND SOMETIMES BUILDINGS. VERY LARGE OR WIND-DRIVEN HAIL CAN
INJURE ANYONE CAUGHT OUTSIDE.

$$

WAJ/BWM

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 25, 2:05 PM EDT, 4 hours 59 minutes earlier.

Area forecast discussion, May 25, 2:05 PM EDT, 4 hours 59 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
205 PM EDT THU MAY 25 2000

BIGGEST CONCERN IS FOR THE FIRST PERIOD. SEVERE TSTM WATCH JUST
ISSUED FOR MUCH OF WRN HALF OF CWA. ISOLATED STORMS DEVELOPING ALONG
SFC TROUGH/OUTFLOW BOUNDARY ACROSS N GA. EXPECT TO SEE RAPID
DEVELOPMENT INTO OUR AREA THIS AFTERNOON WITH THE VERY JUICY AIRMASS
IN PLACE. STABLE AIRMASS TO SINK SOUTH TONIGHT...DEPICTED BY
ADVECTION OF LOWER THETA-E AND HIGHER LIFTED INDICES. ALTHOUGH SOME
SHRA/TSTMS COULD MAKE IT ACROSS NRN TIER THIS EVENING...MOST
WIDESPREAD CONVECTION AND SEVERE WX SHOULD BE LIMITED TO SRN TIER OF
NC...SOUTH. SO AM THINKING OF GOING WITH 40 POP NORTH TO POSSIBLY AS
HIGH AS CATEGORICAL SOUTH...DEPENDING ON TRENDS TOWARD ISSUANCE.

FRONT STALLS TO THE SOUTH OVERNIGHT...THEN AS UPR RIDGE BUILDS OVER
THE SOUTHEAST...SFC BOUNDARY LIFTS BACK NORTH DURING THE DAY FRIDAY.
NO REAL SYNOPTIC SCALE TRIGGERS TO SET CONVECTION OFF TOMORROW...BUT
WITH ADVECTION OF HIGHER THETA-E BACK ACROSS THE BOUNDARY AS IT
BECOMES ORIENTED NORTHWEST TO SOUTHEAST THROUGH THE MIDDLE OF CWA BY
FRIDAY AFTN...WILL GO WITH A CHC OF SHRA/TSTMS FOR THE WRN HALF. THERE
MAY ALSO BE SOME PRECIP FROM ANY OVERNIGHT MCS ACROSS THE SRN PART
OF CWA. AIR TOO STABLE FARTHER NORTHEAST TO WARRANT A MENTION OF
SHOWERS. WILL CONTINUE CHC OF TSRA INTO FRIDAY EVENING FOR THE ABOVE
MENTIONED AREAS.

SATURDAY LOOKS VERY WARM WITH 850 TEMPS EXCEEDING 20 C ACROSS THE
FOOTHILLS/PIEDMONT. ATMOSPHERE PROBABLY TOO DRY ACROSS ALL BUT THE
MTNS TO PRODUCE CONVECTION...BUT WILL GO WITH THE USUAL SUMMERTIME
AFTN/EVE CHC OF TSRA IN THE MTNS OF NC.

NECT COLD FRONT CRUISES THROUGH EARLY SUNDAY...WITH CONVECTION
POSSIBLE AHEAD OF IT SATURDAY NIGHT. CUT-OFF LOW SINKING OVER AREA
MONDAY MAY PROVIDE ENOUGH INSTABILITY TO GENERATE SHRA/TSTMS...BUT
WE WILL SEE.

PRELMINARY NUMBERS...
AVL 57/8n0/56/86/62 6423
CLT 64/84/62/90/66 6200
GSP 66/85/64/91/68 6400

.GSP...NONE.

MOYER

In the hours before

Local storm report, May 25, 4:04 PM EDT, 3 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
404 PM EDT THU MAY 25 2000

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

350 PM     1 N FORT MILL             SC   1.75 INCH HAIL
05/25/00   YORK                           SPOTTER REPORTED GOLF BALL
                                          SIZE HAIL.

BWM
NNNN

Local storm report, May 25, 4:11 PM EDT, 2 hours 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
411 PM EDT THU MAY 25 2000

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

405 PM     6 S WAXHAW                NC   1.25 INCH HAIL
05/25/00   UNION                          SKYWARN SPOTTER HAD HALF
                                          DOLLAR SIZE HAIL SOUTH OF
                                          WAXHAW AND EAST OF HIGHWAY
                                          521 NEAR COUNTY LINE.

TJB
NNNN

Local storm report, May 25, 4:14 PM EDT, 2 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
414 PM EDT THU MAY 25 2000

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

406 PM     WAXHAW                    NC   .75 INCH HAIL
05/25/00   UNION                          REPORTED BY COUNTY EMA
                                          DIRECTOR.

CSH
NNNN

Local storm report, May 25, 6:38 PM EDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
638 PM EDT THU MAY 25 2000

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

627 PM     10 NE UNION               SC   1.75 INCH HAIL
05/25/00   UNION                          REPORT FROM UNION COUNTY
                                          COMMS OF GOLFBALL
                                          SIZED HAIL NEAR LOCKHART.

DEO
NNNN

Local storm report, May 25, 6:55 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
655 PM EDT THU MAY 25 2000

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

635 PM     3 S JONESVILLE            SC   1.75 INCH HAIL
05/25/00   UNION                          EPD REPORTED GOLFBALL SIZE                                      HAIL 3 S JONESVILLE.

635 PM     LOCKHART                  SC   1.00 INCH HAIL
05/25/00   UNION                          EPD REPORTED QUARTER SIZE
                                          HAIL NEAR LOCKHART.

643 PM     ARMENIA 8 NW CHESTER      SC   1.50 INCH HAIL
05/25/00   CHESTER                        CHESTER COUNTY EOC
                                          REPORTED SILVER DOLLAR
                                          SIZE HAIL.
DHR

Local storm report, May 25, 6:59 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
659 PM EDT THU MAY 25 2000

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

645 PM     7 NE UNION                SC   1.75 INCH HAIL
05/25/00   UNION                          A FEW REPORTS OF GOLFBALL
                                          SIZED HAIL FROM DIFFERENT
                                          SOURCES.     HAM
                                          RADIO...HIGHWAY 18.
                                          ADAMSBURG AND NEAR
                                          LOCKHART.

DEO
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 3:30 PM EDT	Severe Thunderstorm Warning	GSP	York	45 min
May 25, 6:13 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	47 min
May 25, 6:20 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	40 min
May 25, 6:24 PM EDT	Severe Thunderstorm Warning	GSP	Union	51 min
May 25, 6:53 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	37 min
May 25, 7:00 PM EDT	Severe Thunderstorm Warning	GSP	Chester	45 min
May 25, 7:36 PM EDT	Severe Thunderstorm Warning	GSP	Union	39 min

Nearby

Severe Thunderstorm Warnings in South 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.