Alert archive / South Carolina / Flash Flood Warnings in 2001

Flash Flood Warning 22, NWS Greenville-Spartanburg, SC

July 25, 2001Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 25, 2001, 3:35 PM EDT for Spartanburg County, South Carolina. It was in force for 85 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 25, 2001, 3:35 PM EDT (19:35 UTC)
Expired
Jul 25, 2001, 5:00 PM EDT
In force
85 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 19:36 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 12:00Z, 7.6 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 12:00Z on 2001-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 12:00Z on 2001-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
56 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-16 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 251935
FFWGSP
SCC083-252100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
335 PM EDT WED JUL 25 2001

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 500 PM EDT

* AT 335 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY       
  HEAVY RAIN GREENVILLE COUNTY SOUTH CAROLINA WITH THE HEAVIEST  
  RAIN ALONG INTERSTATE 85. THIS RAIN IS MOVING NORTHEASTWARD 
  INTO SPARTANBURG COUNTY.

* RAINFALL AMOUNTS OF UP TO THREE INCHES PER HOUR HAVE BEEN NOTED    
  WITH THIS AREA OF HEAVY RAIN.  THE RAIN IS EXPECTED TO CONTINUE    
  THROUGH THE REST OF THE AFTERNOON.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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. EVEN MODERN SPORT UTILITY VEHICLES CANNOT BE
SAFELY DRIVEN THROUGH FLOOD WATERS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IFk WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

$$
DICARLO

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 Jul 25, 3:05 PM EDT, 30 minutes earlier.

Area forecast discussion, Jul 25, 3:05 PM EDT, 30 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
305 PM EDT WED JUL 25 2001

LARGE SCALE LIFT WILL BE ON THE DECREASE TONIGHT AS MID-LVL VORT
MAX GRADUALLY SHIFTS NORTHEAST TOWARD THE MID-ATLANTIC. BUT...AT
LEAST INTO THE EARLY EVENING HOURS...FORCING ALONG THE EAST SIDE
OF THIS FEATURE WILL CONTINUE TO COMBINE WITH PWATS NEAR 2.00"
(150% OF NORMAL). POPS WILL GENERALLY BE DETERMINED WITH RADAR
CVRG AT ZFP ISSUANCE TIME...BUT THEY WILL AT LEAST BE LIKELY WITH
HVY RAIN WORDING THIS EVENING.

THROUGH THE REST OF THE SHORT RANGE PERIOD...TROPICAL AIR REMAINS
OVER THE REGION AS THE MAIN SYNOPTIC SCALE FEATURE LOOKS TO BE A
SOUTHWARD DROPPING FRONTAL ZONE WHICH IS PROGGED TO MOVE FROM NORTH
OF THE OHIO VALLEY THIS AFTERNOON TO NEAR NORTHERN SECTIONS OF THE
DURING FRIDAY.

UNTIL THEN...MDLS DEPICT NEXT SHORTWAVE LIFTING NORTH OUT OF THE
GULF TO REMAIN WELL TO THE W/SW OF THE CWFA THURSDAY & THU NITE...
SO WOULD MAINLY EXPECT DIURNAL DEEP CONVECTION UNTIL FRIDAY WHEN
BETTER FORCING ALONG FRONTAL ZONE APPROACHES.

IN THE EXTENDED...AVN LINGERS FRONTAL ZONE JUST NORTH OF THE CWFA
INTO MONDAY WITH ATMOSPHERE SOUTH OF THE BNDRY REMAINING QUITE
MOIST. WILL CONTINUE CHC POPS INTO EARLY NEXT WEEK.

FCSTID = 55
GSP   71  87  71  85 /  70  50  40  40
AND   71  87  71  85 /  70  50  40  40
CLT   71  87  71  85 /  70  50  40  40
HKY   71  87  71  85 /  70  50  40  40
AVL   67  83  66  82 /  70  50  40  40

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 2:28 PM EDTFlash Flood WarningGSPAnderson107 min
Jul 25, 2:55 PM EDTFlash Flood WarningGSPGreenville110 min
Jul 25, 4:20 PM EDTFlash Flood WarningGSPAnderson115 min
Jul 25, 4:45 PM EDTFlash Flood WarningGSPGreenville2 hr
Jul 25, 6:20 PM EDTFlash Flood WarningGSPAnderson3 hr

Nearby

Flash Flood Warnings in South Carolina, 2001Every flash flood 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; radar from the NEXRAD Level II archive.