Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 112, NWS Greenville-Spartanburg, SC

July 6, 2000Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 6, 2000, 7:42 PM EDT for Laurens County, South Carolina. It was in force for 33 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
Jul 6, 2000, 7:42 PM EDT (23:42 UTC)
Expired
Jul 6, 2000, 8:15 PM EDT
In force
33 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Laurens County, SC

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.7 hours before the alert went out and 256 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, Charleston AFB, SC at 12:00Z on 2000-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 668 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, Charleston AFB, SC at 12:00Z on 2000-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
668 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
1125 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
41 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.

960 
WUUS52 KGSP 062342
SVRGSP
SCC059-070015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
742 PM EDT THU JUL 6 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LAURENS COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 815 PM EDT

* AT 740 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 11 MILES SOUTHEAST OF LAURENS...OR ABOUT 5 MILES
  NORTHEAST OF CROSS HILL...MOVING SOUTH AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CROSS HILL AT 750 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 THUNDERSTORM.

$$

MOORE

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 Jul 6, 2:30 PM EDT, 5 hours 12 minutes earlier.

Area forecast discussion, Jul 6, 2:30 PM EDT, 5 hours 12 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
230 PM EDT THU JUL 6 2000

BUILDING HEIGHTS ACROSS THE AREA THROUGH THE SHORT RANGE PERIOD WILL
DO LITTLE TO DRY OUT THE PERSISTENT MOISTURE AT 850 MB AND BELOW
ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. SURFACE BOUNDARY
HAS PUSHED INTO NC IN CENTRAL AND EASTERN PARTS BUT CONTINUES TO
MAKE LITTLE PROGRESS NEARER THE MOUNTAINS. RESIDUAL EVENING POPS
SHOULD ONLY BE NEEDED FARTHER SOUTHWEST...NEARER THE 850 MB THETA E
RIDGE AND DOWNSTREAM FROM ONGOING CONVECTION IN ERN TN.

THE ETA MODEL IS THE MOST AGGRESSIVE AT SENDING EAST TO SOUTHEAST
WEAK UPSLOPE FLOW BACK AGAINST THE SRN APPALACHIANS AS THE SFC HIGH
BUILDS DOWN INTO THE GREAT LAKES THROUGH THE PERIOD. ALL
MODELS...HOWEVER...KEEP SOMETHING OF A MOISTURE POOL OVER THE AREA
WITH THE BEST MOISTURE AND LIFT COMBINATION ALONG THE SRN MTN
EASTERN ESCARPMENT FROM LATE FRI THROUGH SATURDAY. ONLY THE ETA
SUGGESTS AN INVERTED TROUGH UP THE SRN MTNS WITH WEAK ISENTROPIC
UPGLIDE THROUGH THE MOISTURE. WILL THUS INTRODUCE 30 POPS FROM LATE
FRI THROUGH SAT ACROSS FOOTHILL AND MOUNTAIN ZONES AND RELEGATE
PIEDMONT TO A SILENT 20 POP.

FWC MOS NUMBERS LOOK MORE REASONABLE THROUGH SAT THAN PREVIOUS DAYS.
AIRMASS COOLS SLIGHTLY AND ANY RESIDUAL UPSLOPE CLOUD COVER AGAINST
ERN MTNS MAY LIMIT MINS FURTHER ON SAT.

...PRELIM NUMBERS...
FCSTID = 33
GSP   70  91  69  87 /  20  30  30  30
AND   70  91  69  88 /  20  30  30  30
CLT   71  88  68  87 /  10  20  20  20
HKY   70  86  66  85 /  10  20  20  20
AVL   67  83  64  83 /  20  30  30  30

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

HG

In the hours before

Local storm report, Jul 6, 6:07 PM EDT, 1 hour 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
607 PM EDT THU JUL 6 2000

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

545 PM     HOT SPRINGS               NC   WIND DAMAGE
07/06/00   MADISON                        EOC RELAYED REPORT OF
                                          TREES BLOWN DOWN...SOME
                                          ONTO POWER LINES.

JONES
NNNN
Local storm report, Jul 6, 7:29 PM EDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
729 PM EDT THU JUL 6 2000

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

650 PM     7 S GAFFNEY               SC   WIND DAMAGE
07/06/00   CHEROKEE                       911 REPORTED A COUPLE OF
                                          TREES BLOWN DOWN ALONG
                                          HIGHWAY 18S

710 PM     7 N UNION                 SC   WIND DAMAGE
07/06/00   UNION                          911 REPORTED TRAILERS
                                          BLOWN OVER.  GAFFNEY
                                          HIGHWAY NEAR THE CHEROKEE
                                          LINE.  NO INJURIES
                                          REPORTED.

JONES
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:42 PM EDTSevere Thunderstorm WarningGSPCherokee48 min
Jul 6, 6:55 PM EDTSevere Thunderstorm WarningGSPUnion50 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; the sounding from the Mesonet's radiosonde archive.