Alert archive / South Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 14, NWS Greenville-Spartanburg, SC

September 1, 2000Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 1, 2000, 10:50 PM EDT for Spartanburg 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
Sep 1, 2000, 10:50 PM EDT (02:50 UTC)
Expired
Sep 2, 2000, 12:45 AM EDT
In force
115 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 02:51 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.8 hours before the alert went out and 228 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 00:00Z on 2000-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 326 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 00:00Z on 2000-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
326 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
68 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 020252
FFWGSP
SCC083-020445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1050 PM EDT FRI SEP 1 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 1245 AM EDT

* AT 1050 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
  THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL OVER MOST OF
  SPARTANBURG COUNTY...MOVING NORTH AT 15 MPH. THE HEAVIEST
  DOWNPOURS WERE NEAR THE CITY OF SPARTANBURG...WITH RAINFALL RATES
  OF NEARLY 2 INCHES PER HOUR.

* ADDITIONAL THUNDERSTORMS PRODUCING HEAVY RAINFALL WILL MOVE NORTH
  FROM WOODRUFF AND MOORE AND PASS OVER THE CITY OF SPARTANBURG
  BETWEEN 11 PM AND MIDNIGHT. THIS ADDITIONAL RAINFALL WILL LIKELY
  CREATE SERIOUS STANDING WATER IN NORMALLY POOR DRAINAGE LOCATIONS.
  RAPID RISES TO BANKFULL ARE ALSO QUITE POSSIBLE ALONG LAWSON
  CREEK...FAIRFOREST CREEK...AND THE TYGER RIVERS.

IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE TO HIGHER GROUND 
IMMEDIATELY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER 
COVERS THE ROADWAY. BE ESPECIALLY CAUTIOUS SINCE FLOODED ROADWAYS 
ARE HARDER TO RECOGNIZE AT NIGHT.
$$
HG

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 Sep 1, 9:00 PM EDT, 1 hour 50 minutes earlier.

Area forecast discussion, Sep 1, 9:00 PM EDT, 1 hour 50 minutes before
SCZ001>014-019-NCZ033>037-048>059-062>072-082-GAZ010-017-018-026-028-
029-020800-

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
900 PM EDT FRI SEP 1 2000

GREATEST RADAR COVERAGE IS OVER THE SOUTHERN PIEDMONT THIS
EVENING...WITH A RATHER LARGE AREA OF 40+ DBZ MOVING NORTHWEST. THE
21Z RUC DEPICTED THE TSTM AREA VERY WELL IN THE LOW LEVEL MOISTURE
CONVERGENCE FIELDS AT THE 3 HR PROJECTION. THE CONVERGENCE...
HOWEVER...WEAKENS THROUGH 06Z AS IT STRETCHES FROM THE UPSTATE INTO
THE NW NC PIEDMONT. SINCE THE RUC INITIALIZED WELL...CONFIDENCE IS
GREATER THAT SIGNIFICANT FLASH FLOOD PROBLEMS WILL NOT OCCUR IN THE
SOUTHERN PIEDMONT AS INSTABILITY...FORCING...AND THUS RAINFALL RATES
GRADUALLY DIMINISH. WILL STILL RETAIN HEAVY RAIN WORDING IN ZONES
HOWEVER SINCE ISOLATED STREET FLOODING IS POSSIBLE WITH MAX 2.5 INCH
PER HOUR RATES. GSO SOUNDING STILL SHOWED 800+ CAPES WITH PRECIPITABLE
WATER 2.0+ INCHES.

WILL ADJUST UPSTATE SC/NE GA/PIEDMONT NC TEMPS TO LOWER 70S WITH VERY
MOIST PROFILE...AND PUSH MTN TEMPS TO 65 TO 70 RANGE.

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

HG

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.