Alert archive / South Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 6, NWS Greenville-Spartanburg, SC

June 20, 2000Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jun 20, 2000, 6:35 PM EDT for Laurens County, South Carolina. It was in force for 115 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
Jun 20, 2000, 6:35 PM EDT (22:35 UTC)
Expired
Jun 20, 2000, 8:30 PM EDT
In force
115 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Laurens County, SC

The radar

The Greer radar (KGSP), 49 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.6 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 2000-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 216 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 2000-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939Sfc1 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
216 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1133 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
53 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 
WGUS52 KGSP 202234
FFWGSP
SCC059-210030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
635 PM EDT TUE JUN 20 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAURENS COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 830 PM EDT

* AT 632 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY 
HEAVY   RAIN OVER CEBTRAL AND EASTERN LAURENS COUNTY. THE STORM IS 
MOVING SLOWLY EAST.

* EXPECT FLOODING IN AREAS INCLUDING THE CITIES OF LAURENS...CROSS 
HILL AND JOANNA.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

$$
RB/BWM

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jun 20, 2:00 PM EDT, 4 hours 35 minutes earlier.

Area forecast discussion, Jun 20, 2:00 PM EDT, 4 hours 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
200 PM EDT TUE JUN 20 2000

SOME INTERESTING WEATHER FEATURES FOR THE AREA THIS EVENING. A COLD
FRONT WAS HOLDING NEARLY STATIONARY ACROSS THE AREA THIS AFTERNOON
FROM JUST SOUTH OF THE CHARLOTTE METROPOLITAN AREA TO NEAR
RUTHERFORDTON AND THEN NORTHWARD THRU THE NC MTNS. NORTH OF THE
FRONT...IN THE NORTH CAROLINA PIEDMONT AND FOOTHILLS...TEMPERATURES
WERE IN THE LOW AND MIDDLE 70S.  MIDDLE AND UPPER 80S WERE COMMON
SOUTH OF THE FRONT WITH UPPER 70S AND LOWER 80S WEST OF THE FRONT IN
THE MTNS.

AN UPPER DISTURBANCE WILL PUSH ACROSS THE CWA LATE THIS AFTN AND
THIS EVENING ACCOMPANIED BY SCATTERED SHOWERS AND TSTMS. THE SHOWERS
BEGAN OVER EXTREME SOUTHWEST NC AND NE GA EARLY IN THE AFTERNOON AND
WILL INCREASE IN INTENSITY AND COVERAGE AS THEY SPREAD EAST THROUGH
THIS EVENING. WITH THE LACK OF WIND SHEAR AND STEEP LAPSE RATES OVER
THE AREA...I EXPECT LITTLE ORGANIZED SEVERE BUT ENOUGH INSTABILITY
IS PRESENT FOR AN ISOLATED DOWNBURST OR LARGE HAIL EVENT.

I WILL CONTINUE CHANCE OF SHOWERS AND TSTMS WEDNESDAY DUE TO GOOD
INSTABILITY AND PLENTIFUL MOISTURE...KNOWING THERE WILL BE A FEW
LOCAL BOUNDARIES TO PROVIDE LOW LEVEL CONVERGENCE TO SET OFF MORE
SCATTERED SHOWERS AND THUNDERSTORMS. HOWEVER NEXT SHORT WAVE WITH
SUPPORTING UPLIFT LOOKS TO BE COMING IN WEDNESDAY NIGHT AND EARLY
THURSDAY AFTER DIURNAL COOLING. HIGH PRESSURE AND A DRIER AIR MASS
WILL BUILD INTO THE CWA FOR THE WEEKEND.

PRELIMINARY NUMBERS FOR COORDINATION...
AVL 64/83/63/83 5/4/4/4
CLT 68/86/68/87 6/4/4/4
GSP 69/88/69/89 5/4/4/4

.GSP...NONE.

RBN

In the hours before

Local storm report, Jun 20, 5:07 PM EDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
507 PM EDT TUE JUN 20 2000

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

545 PM     GREENVILLE                SC   WIND DAMAGE
06/20/00   GREENVILLE                     GREENVILLE PD REPORTED
                                          NUMEROUS TREES/LINES DOWN
                                          ACROSS CITY.  COUNTY
                                          REPORTED SOME URBAN
                                          FLOODING NEAR CITY.

JONES
NNNN
Local storm report, Jun 20, 5:07 PM EDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED TIME
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
507 PM EDT TUE JUN 20 2000

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

445 PM     GREENVILLE                SC   WIND DAMAGE
06/20/00   GREENVILLE                     GREENVILLE PD REPORTED
                                          NUMEROUS TREES/LINES DOWN
                     J                     ACROSS CITY.  COUNTY
                                          REPORTED SOME URBAN
                                          FLOODING NEAR CITY.

JONES
NNNN
Local storm report, Jun 20, 5:26 PM EDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
526 PM EDT TUE JUN 20 2000

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

525 PM     SIMPSONVILLE              SC   WIND DAMAGE
06/20/00   GREENVILLE                     SIMPSONVILLE PD REPORTED
                                          TREES DOWN ALL OVER THE
                                          CITY DURING THE PAST 5
                                          MINUTES.

TJB
NNNN
Local storm report, Jun 20, 6:21 PM EDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
621 PM EDT TUE JUN 20 2000

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

555 PM     HICKORY TAVERN            SC   WIND DAMAGE
06/20/00   LAURENS                        LAURENS 911 RELAYED REPORT
                                          OF TREES BLOWN DOWN AT
                                          HICKORY TAVERN

555 PM     GRAY COURT                SC   .75 INCH HAIL
06/20/00   LAURENS                        LAURENS 911 RELAYED REPORT
                                          OF DIME SIZE HAIL

JONES
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 4:35 PM EDTSevere Thunderstorm WarningGSPGreenville40 min
Jun 20, 5:15 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens60 min

Nearby

Flash Flood Warnings in South Carolina, 2000Every flash flood 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; radar from the NEXRAD Level II archive.