Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 110, NWS Greenville-Spartanburg, SC

July 8, 2001Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 8, 2001, 7:45 PM EDT for Laurens County, South Carolina. It was in force for 45 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 8, 2001, 7:45 PM EDT (23:45 UTC)
Expired
Jul 8, 2001, 8:30 PM EDT
In force
45 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Laurens County, SC

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 8, 5:00 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.8 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 2001-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1464 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 2001-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
1464 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
733 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

632 
WUUS52 KGSP 082345
SVRGSP
SCC059-090030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
745 PM EDT SUN JUL 8 2001

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 830 PM EDT

* AT 745 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM WITH DAMAGING WINDS 7 MILES NORTH OF LAURENS...MOVING
  SOUTH AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAURENS AT 755 PM EDT
  JOANNA AT 800 PM EDT
  WATERLOO AT 805 PM EDT
  CROSS HILL AT 810 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.

$$

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 8, 3:00 PM EDT, 4 hours 45 minutes earlier.

Area forecast discussion, Jul 8, 3:00 PM EDT, 4 hours 45 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
300 PM EDT SUN JUL 8 2001

PRIMARY FORECAST CONCERN THIS PACKAGE IS WHAT TO DO WITH DEVELOPING
UPSTREAM MCS. CURRENTLY INTENSE CONVECTION IS FIRING ALONG H8 AREA
OF CONVERGENCE...OVER SE OH/NRN KY. MODELS ARE NOT HANDLING THIS
SYSTEM WELL AS THEY DON/T DEVELOP ANY ORGANIZED CONVECTION UNTIL
AROUND 06Z (INTERESTINGLY ENUF...ABOUT WHERE CONVECTION IS NOW). I
SUPPOSE THIS BATCH COULD DIE OUT...BUT WITH 30 KTS OF SHEAR AND GOES
SOUNDER LIS OF -10 FEEDING IT...I HAVE MY DOUBTS.

SO THE QUESTION IS...WHERE WL IT GO? LAST NGHTS MCS TRACKED JUST
ABOUT ALONG THE -10 DEG C LINE AT H7. TNGT...THE -10 DEG TEMPS HAVE
ALL BUT VANISHED AS THE WORKED OVER AIRMASS HAS LOST A LOT OF THE
ELEVATED MIXED LAYER CHARACTERISTICS OF DAYS PAST. STILL...-8 DEG
TEMP LINE LOOK GOOD TNGT...WHICH PRETTY MUCH TAKES IT RIGHT ACROSS
THE CWA. BY LATE TNGT THE FLOW TURNS ALMOST DUE N...AND WEAKENS
SOME...SO THE SYSTEM PROBABLY WILL NOT BE AS STRONG AS THE ONE LAST
NGHT...BUT CERTAINLY CAN/T RULE OUT SOME STRONG WINDS AS THE MCS
FIRST GETS HERE. THUS...PLAN TO MENTION SOME POSSIBLY SEVERE IN THE
MTN ZONES. W/DIFFULENT THICKNESS PATTERN ALOFT...SOME TRAINING HEAVY
RAIN ALSO POSSIBLE. WON/T ISSUE A FFA DUE TO SOME UNCERTAINTY ON
TRACK OF MCS

WL LOWER TEMPS ABOUT 5 TO 7 DEG TMRW TO ACCOUNT FOR DEBRIS LEFT OVER
FROM MCS. IF ETA IS RIGHT...MORE CONVECTION MAY FIRE ABOUT DAWN OVER
THE AREA. HOWEVER...SHEAR BECOMES MUCH WEAKER TMRW. AND WHAT SHEAR
THERE IS...AN AXIS OF H7 25KT WNDS...RETROGRADE INTO CENTRAL TN AND
NRN AL/GA IN RESPONSE TO HGHT FALLS OVER THE E.

LOW CHANCE POPS MON NGHT AND TUE. W/ONLY WEAK NW FLOW...THESE WL
LIKELY BE MORE OF THE TYPICAL SUMMERTIME DIURNALLY DRIVEN STUFF.

NCEP CONTINUES TO ADVERTISE A RATHER SUBSTANTIAL FROPA EARLY WED.
LATEST AVN LOOKS AWFULLY WEAK WITH THE FRONT...TO THE POINT THAT NW
FLOW CONVECTION CONTINUES WED AND THU. HOWEVER...WL GO WITH NCEP
IDEA AND IGNORE THE OUTLIER AVN. THUS...DRY WED-FRI...WITH CHANCE
TSRA FRI NGHT-SUN AS SFC BNDRY LIFTS BACK INTO THE REGION.

FCSTID = 14
GSP   71  87  72  92 /k  70  40  30  30
AND   71  87  72  92 /  70  40  30  30
CLT   71  87  72  92 /  60  40  30  30
HKY   70  87  71  90 /  70  40  30  30
AVL   65  82  65  87 /  80  40  30  30

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

MCAVOY

In the hours before

Local storm report, Jul 8, 7:31 PM EDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
731 PM EDT SUN JUL 08 2001

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

705 PM     TRAVELERS REST            SC   WIND DAMAGE
07/08/01   GREENVILLE                     TREE DOWN ACROSS HIGHWAY
                                          25. REPORTED BY TRAVELERS
                                          REST PD.

CSH
Local storm report, Jul 8, 7:37 PM EDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
737 PM EDT SUN JUL 08 2001

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

725 PM     NORTHWESTERN COUNTY       SC   WIND DAMAGE
07/08/01   SPARTANBURG                    30 REPORTS OF TREES AND
                                          LINES DOWN IN NORTH AND
                                          NORTHWEST PART OF COUNTY.
                                          AFFECTED CITIES INCLUDE:
                                          COWPENS, BOILING SPRINGS,
                                          HOLLY SPRINGS,
                                          SPARTANBURG.  REPORTED BY
                                          SPARTANBURG CO EOC.

LAMB
Local storm report, Jul 8, 7:37 PM EDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
737 PM EDT SUN JUL 08 2001

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

725 PM     SPARTANBURG               SC   WIND DAMAGE
07/08/01   SPARTANBURG                    30 REPORTS OF TREES AND
                                          LINES DOWN IN NORTH AND
                                          NORTHWEST PART OF COUNTY.
                                          AFFECTED CITIES INCLUDE:
                                          COWPENS, BOILING SPRINGS,
                                          HOLLY SPRINGS,
                                          SPARTANBURG.  REPORTED BY
                                          SPARTANBURG CO EOC.

LAMB
Local storm report, Jul 8, 7:40 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
740 PM EDT SUN JUL 08 2001

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

645 PM     CASAR                     NC   WIND DAMAGE
07/08/01   CLEVELAND                      TREES DOWN NEAR HIGHWAY
                                          10 AND OLIVE GROVE ROAD.
                                          HAM RADIO REPORT.

CSH
Local storm report, Jul 8, 7:41 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
741 PM EDT SUN JUL 08 2001

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

630 PM     LEICESTER                 NC   WIND DAMAGE
07/08/01   BUNCOMBE                       PUBLIC REPORTED MEDIUM TO
                                          LARGE TREE DOWN ON HOUSE.

LAMB
Local storm report, Jul 8, 7:43 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
743 PM EDT SUN JUL 08 2001

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

720 PM     GREENVILLE                SC   WIND DAMAGE
07/08/01   GREENVILLE                     PINE TREE DOWN ON I-385
                                          NEAR STONE AVE. REPORT
                                          RELAYED THROUGH HAM
                                          RADIO.

CSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 6:37 PM EDTSevere Thunderstorm WarningGSPCherokee, Greenville, Spartanburg53 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2001Every severe thunderstorm warning in 2001

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.