Alert archive / South Carolina / Flash Flood Warnings in 2002

Flash Flood Warning 5, NWS Greenville-Spartanburg, SC

June 30, 2002Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jun 30, 2002, 7:08 PM EDT for Greenville County, South Carolina. It was in force for 112 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 30, 2002, 7:08 PM EDT (23:08 UTC)
Expired: Jun 30, 2002, 9:00 PM EDT
In force: 112 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Greenville County, SC

The radar

The Greer radar (KGSP), 14 km from the middle of the area, began a volume at 23:09 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.1 hours before the alert went out and 259 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: 1860 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 682 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 15 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 302308
FFWGSP
SCC045-302330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
703 PM EDT SUN JUN 30 2002

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL AND WESTERN GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 900 PM EDT

* AT 703 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER
  OF THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL FROM THE CITY OF
  GREENVILLE WESTWARD TO THE PICKENS AND ANDERSON COUNTY BORDER.

THESE THUNDERSTORMS WILL DRIFT SLOWLY WEST AND PRODUCE ADDITIONAL 
RAINFALL OF 2 TO 3 INCHES BEFORE ENDING. SEVERAL ROADS IN WESTERN 
GREENVILLE COUNTY ALREADY HAVE SIGNIFICANT STANDING WATER IN LOW 
SPOTS. STREAMS AND CREEKS FROM GREENVILLE TO BEREA TO WELCOME WILL 
LIKELY COME OUT OF THEIR BANKS AND FLOOD ADJACENT ROADS.
 
DO NOT ATTEMPT TO DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. HEAD 
TO HIGHER GROUND IMMEDIATELY IF RISING WATER AFFECTS YOUR LOCATION.
$$
HG

1 follow-up statement

000 
WGUS72 KGSP 302348
FFSGSP
SCC045-010100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
748 PM EDT SUN JUN 30 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 900 PM EDT FOR CENTRAL AND 
WESTERN GREENVILLE COUNTY...

AT 634 PM...NATIONAL WEATHER SERVICE RADAR INDICATES THAT AS MUCH AS 
3 INCHES OF RAIN HAS OCCURRED IN A VERY SHORT PERIOD OF TIME ACROSS 
WESTERN PORTIONS OF THE GREENVILLE METRO AREA. MINOR CREEKS AND STREAMS 
RUNNING INTO THE SALUDA RIVER ARE LIKELY TO OVERFLOW THEIR BANKS 
DURING THE NEXT HOUR. SOME FLOODING OF ROADS AND LOW LYING AREAS HAS 
ALREADY BEEN REPORTED. AT 630 PM...WATER WAS REPORTED TO BE FLOODING 
A BUSINESS OFF OF INTERSTATE 185.   

DO NOT BECOME A FATALITY DO NOT CROSS FLOODED ROADS...THE ROAD COULD
BE WASHED OUT FROM THE FLOW OF THE WATER...AND YOUR CAR COULD BE
SWEPT AWAY BY THE SWIFTLY MOVING WATER.

$$

LANE

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 30, 3:53 PM EDT, 3 hours 15 minutes earlier.

Area forecast discussion, Jun 30, 3:53 PM EDT, 3 hours 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
353 PM EDT SUN JUN 30 2002

ISOLATED TO SCATTERED CONVECTION ACROSS THE CWFA TODAY. WILL
DETERMINE JUST BEFORE ISSUANCE WHETHER TO INCLUDE ISOLATED OR SCT
EVENING CONVECTION. ACTIVITY SHOULD DIE SHORTLY AFTER SUNSET.

LOOKS LIKE A TYPICAL SUMMERTIME PATTERN THE NEXT SEVERAL DAYS. CWFA
REMAINS JUST EAST OF THE UPPER RIDGE AXIS WITH A SURFACE TROF
MEANDERING ACROSS THE AREA. WEAK IMPULSES ROTATE SOUTH DOWN THE
RIDGE ACROSS THE AREA. LOW LEVEL MOISTURE REMAINS HIGH WITH SOMEWHAT
DEEPER MOISTURE RETURNING TUESDAY. DIFFERENTIAL HEATING AND TROF TO
PROVIDE THE LOW LEVEL CONVERGENCE. ATMOS REMAINS UNSTABLE WITH NO
APPRECIABLE MID LEVEL WARMING NOTED. HARD TO PINPOINT WHERE AFT
CONVECTION WILL OCCUR...SO WILL MENTION LOW CHC POP ACROSS ALL CWFA.
NOTHING TO INDICATE MUCH ORGANIZATION...SO WILL JUST INCLUDE FOR AFT.

SFC FNT MOVES SOUTH OF THE CWFA SATURDAY. ATMOS REMAINS MOIST AND
UNSTABLE UNTIL THEN. WILL INCLUDE CHC AFT POP ALL AREAS THRU FRI.
WILL KEEP SAT AND SUN DRY FOR NOW AS DRIER AIR MOVES IN.

GSP   69  91  70  91 /  20  30  20  30
AND   69  91  70  91 /  20  30  20  30
CLT   69  90  70  92 /  10  30  20  30
HKY   68  89  68  90 /  10  30  20  30
AVL   64  85  65  86 /  20  30  20  30

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

RWH

In the hours before

Local storm report, Jun 30, 6:48 PM EDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED FOR WIND LOCATION
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
648 PM EDT SUN JUN 30 2002

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

640 PM     WOODRUFF                  SC   .88 INCH HAIL
06/30/02   SPARTANBURG

640 PM     1 E MOORE                 SC   WIND DAMAGE
06/30/02   SPARTANBURG                    TREES DOWN NEAR I-26 AND
                                          HIGHWAY 221 INTERSECTION

630 PM     GREENVILLE                SC   .88 INCH HAIL
06/30/02   GREENVILLE

LANE/HG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 6:13 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	47 min
Jun 30, 6:35 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	40 min
Jun 30, 6:54 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Pickens	66 min

Nearby

Flash Flood Warnings in South Carolina, 2002 Every flash flood warning in 2002

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.