Alert archive / North Carolina / Flash Flood Warnings in 2003

Flash Flood Warning 85, NWS Greenville-Spartanburg, SC

July 29, 2003Mecklenburg County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 29, 2003, 2:46 PM EDT for Mecklenburg County, North Carolina. It was in force for 119 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 29, 2003, 2:46 PM EDT (18:46 UTC)
Expired
Jul 29, 2003, 4:45 PM EDT
In force
119 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Mecklenburg County, NC

The radar

The Greer radar (KGSP), 133 km from the middle of the area, began a volume at 18:49 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, 6.8 hours before the alert went out and 125 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 2003-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 681 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 2003-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
681 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KGSP 291846
FFWGSP
NCC119-292045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
246 PM EDT TUE JUL 29 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH CAROLINA

* UNTIL 445 PM EDT

* AT 245 PM EDT...WEATHER RADAR SHOWED NEARLY STATIONARY SHOWERS 
  AND THUNDERSTORMS IN THE VICINITY OF MATTHEWS. ADDITIONAL STORMS 
  WERE DEVELOPING JUST UPSTREAM NEAR CHARLOTTE. THE STORMS WILL MOVE
  VERY SLOWLY...ENHANCING THE POTENTIAL FOR STREAM AND CREEK 
  FLOODING IN SOUTHERN MECKLENBURG COUNTY...AS WELL AS URBAN 
  FLOODING OF LOW LYING AND POOR DRAINAGE AREAS.

* LAW ENFORCEMENT REPORTS FLOODING HAS ALREADY OCCURRED ON SAM 
  NEWALL ROAD NEAR ITS JUNCTION WITH IRVINS CREEK. WATER LEVELS CAN 
  BE EXPECTED TO RISE RAPIDLY. ADDITIONAL STREAMS AND CREEKS MAY 
  COME OUT OF THEIR BANKS AND FLOOD ROADS.

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.

TO REPORT FLOODING HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR
REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
GREENVILLE-SPARTANBURG.

$$
3 follow-up statements
000 
WGUS72 KGSP 291932
FFSGSP
NCC119-292100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT TUE JUL 29 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 500 PM EDT FOR SOUTHERN 
MECKLENBURG COUNTY...

HEAVY RAIN CONTINUES TO FALL ACROSS MECKLENBURG COUNTY. THE HEAVIEST 
RAIN WAS FALLING ACROSS THE FOUR MILE CREEK... BRIAR CREEK AND 
IRVINS CREEK WATERSHEDS.  IN THE FOUR MILE CREEK BASIN THE HEAVY 
RAIN WILL RESULT IN SIGNIFICANT RISES ALONG THE CREEK AND MAY EFFECT 
ASHLEY CREEK DRIVE... STEVENS RIDGE ROAD AND RAINTREE LANE CROSSING. 
BRIAR CREEK AREAS ESPECIALLY SUSCEPTIBLE TO FLOODING ALONG THE CREEK 
ARE SHANNONHOUSE... KILDARE... RUTH DRIVES. ALSO AREAS BETWEEN 
PROVIDENCE ROAD TO COMMONWEALTH AVENUE AND THE MYERS PARK DRIVE AREA 
ARE PRONE TO FLOODING.  

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.

$$
PAT
000 
WGUS72 KGSP 292019 CCA
FFSGSP
NCC119-292100-

FLASH FLOOD STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT TUE JUL 29 2003

CORRECTED EXPIRATION TIME IN HEADLINE.

...A FLASH FLOOD WARNING CONTINUES UNTIL 445 PM EDT FOR SOUTHERN 
MECKLENBURG COUNTY...

HEAVY RAIN CONTINUES TO FALL ACROSS MECKLENBURG COUNTY. THE HEAVIEST 
RAIN WAS FALLING ACROSS THE FOUR MILE CREEK... BRIAR CREEK AND 
IRVINS CREEK WATERSHEDS.  IN THE FOUR MILE CREEK BASIN THE HEAVY 
RAIN WILL RESULT IN SIGNIFICANT RISES ALONG THE CREEK AND MAY EFFECT 
ASHLEY CREEK DRIVE... STEVENS RIDGE ROAD AND RAINTREE LANE CROSSING. 
BRIAR CREEK AREAS ESPECIALLY SUSCEPTIBLE TO FLOODING ALONG THE CREEK 
ARE SHANNONHOUSE... KILDARE... RUTH DRIVES. ALSO AREAS BETWEEN 
PROVIDENCE ROAD TO COMMONWEALTH AVENUE AND THE MYERS PARK DRIVE AREA 
ARE PRONE TO FLOODING.  

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.

$$
PAT
000 
WGUS72 KGSP 292046
FFSGSP
NCC119-292115-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
446 PM EDT TUE JUL 29 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR SOUTHERN 
MECKLENBURG COUNTY HAS EXPIRED AS OF 445 PM EDT...

THE HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN
THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE
FLASH FLOOD THREAT. EVEN THOUGH STREAMS AND CREEKS WERE 
RECEDING...SOME ROADWAYS STILL MAY BE COVERED WITH WATER. RISES CAN 
STILL BE EXPECTED THROUGH THE IRWIN...LITTLE SUGAR AND FOUR MILE 
CREEK BASINS AS EXCESSIVE RAINFALL FROM EARLIER THIS AFTERNOON 
FILTERS THROUGH MECKLENBURG WATERWAYS. MOTORISTS ARE ADVISED TO 
AVOID DRIVING THROUGH FLOODED ROADWAYS.

DURING THE HEIGHT OF THE HEAVIEST RAINFALL...SAM NEWALL ROAD WAS 
CLOSED IN MATTHEWS. ALSO IN MATTHEWS...PART OF TANK TOWN ROAD 
FLOODED WHEN FOUR MILE CREEK ESCAPED ITS BANKS. IN CHARLOTTE...BRIAR 
CREEK FLOODED PART OF SHEFFIELD DRIVE. 

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.

$$
BURRUS

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 29, 10:20 AM EDT, 4 hours 26 minutes earlier.

Area forecast discussion, Jul 29, 10:20 AM EDT, 4 hours 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1020 AM EDT TUE JUL 29 2003

LATE MORNING UPDATE WILL BE ISSUED ALTHOUGH CHANGES FOR THIS
AFTERNOON WILL BE FEW. EAST TO WEST FRONT CONTINUES TO DRIFT SLOWLY
SOUTHWARD. LATEST MESO ANALYSES INDICATE CONFLUENT ASYMPTOTE IN
SURFACE WIND FIELD EXTENDS FROM NORTHERN POLK COUNTY EASTWARD
THROUGH NORTHERN MECKLENBURG COUNTY AND ROWAN COUNTY.  MOISTURE
CONVERGENCE AXIS ACCOMPANIES THE WIND CONFLUENCE.  NORTH OF THIS
FEATURE... SURFACE WINDS ARE NORTHEAST WHILE SOUTHWEST FLOW
CONTINUES ELSEWHERE TO THE SOUTH... AT LEAST EAST OF THE MOUNTAINS.
THERE ARE HINTS OF A WEST TO NORTHWEST FLOW IN THE MOUNTAINS... BUT
TERRAIN IS MAKING RESOLUTION OF LOWER LEVEL WIND RATHER DIFFICULT.
LATEST RUC SHOWS 500 MB TROUGH AND ASSOCIATED VORTICITY MAXIMUM JUST
TO OUR WEST CONTINUING TO MOVE GRADUALLY EASTWARD.  AIR MASS OVER
CWA IS UNSTABLE... BUT NOT SUFFICIENTLY UNSTABLE TO INDICATE
SIGNIFICANT POTENTIAL OF SEVERE WEATHER.  FORECAST CAPES DURING TIME
OF MAXIMUM HEATING DISPLAY A GRADIENT RANGING FROM 1900 IN WEST TO
3200 IN EAST.  WILL CONTINUE POPS IN CURRENT FORECAST THIS AFTERNOON
BUT PLAN TO INCREASE INTO LIKELY CATEGORY FOR OUR EASTERN ZONES.
CONCERN FOR ISOLATED SEVERE WEATHER THIS AFTERNOON AND THIS EVENING
WILL BE CENTERED AROUND THE MOST UNSTABLE AIR IN THE EAST AND THE
SURFACE MOISTURE CONVERGENCE MAXIMUM.

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

LGL
Hazardous weather outlook, Jul 29, 4:58 AM EDT, 9 hours 48 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-291100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
458 AM EDT TUE JUL 29 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA...
UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA.

.DAY ONE...TODAY

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY.

.DAYS TWO THROUGH SEVEN...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THE
EXTENDED PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED ATT HIS TIME.

RB

In the hours before

Special weather statement, Jul 29, 1:08 PM EDT, 1 hour 38 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-300000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
108 PM EDT TUE JUL 29 2003

...SEVERE THUNDERSTORMS POSSIBLE ACROSS EXTREME NORTHEAST GEORGIA
AND THE WESTERN CAROLINAS...

THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY THROUGHOUT
THE AFTERNOON. A MOSTLY SUNNY START TO THE DAY HAS RESULTED IN A
VERY UNSTABLE ATMOSPHERE. AS A COLD FRONT APPROACHES FROM THE
NORTHWEST...AND A POTENT UPPER LEVEL DISTURBANCE ROTATES ACROSS
THE REGION THIS AFTERNOON...THERE IS THE POTENTIAL FOR SOME OF
THE THUNDERSTORMS TO BECOME SEVERE. THE MAIN SEVERE WEATHER THREAT
THROUGH EARLY EVENING WILL BE DAMAGING WIND GUSTS TO NEAR 70 MPH.
THUNDERSTORMS SHOULD WEAKEN WITH THE LOSS OF DAYTIME HEATING.

WITH A WEAK WIND FLOW ALOFT...ANY THUNDERSTORMS THAT DO DEVELOP ARE
EXPECTED TO MOVE SLOWLY...AND COULD PRODUCE AT LEAST A COUPLE OF
INCHES OF RAIN IN ANY ONE LOCATION. STANDING WATER ON ROADS...AND IN
POOR DRAINAGE AREAS IS LIKELY WHEREVER THUNDERSTORMS LINGER FOR LONG
PERIODS. STREAMS...CREEKS AND RIVERS COULD SEE QUICK RISES ACROSS
THE REGION...ENHANCING THE POSSIBILITY OF LOCALIZED FLOODING.

SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY LATE THIS
AFTERNOON AND THIS EVENING. DISPATCHERS SHOULD ENSURE COUNTY
EMERGENCY MANAGEMENT OFFICIALS ARE AWARE OF THIS INFORMATION.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR
THE LATEST UPDATES CONCERNING THIS POTENTIAL SEVERE WEATHER
SITUATION.

BURRUS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 2:37 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union53 min
Jul 29, 4:26 PM EDTSevere Thunderstorm WarningGSPAlexander, Catawba64 min
Jul 29, 5:25 PM EDTSevere Thunderstorm WarningGSPLincoln65 min
Jul 29, 5:28 PM EDTSevere Thunderstorm WarningGSPIredell47 min
Jul 29, 5:51 PM EDTSevere Thunderstorm WarningGSPGaston54 min
Jul 29, 6:16 PM EDTFlash Flood WarningGSPDavie, Rowan3 hr
Jul 29, 6:19 PM EDTSevere Thunderstorm WarningGSPMecklenburg56 min
Jul 29, 6:32 PM EDTSevere Thunderstorm WarningGSPRowan58 min
Jul 29, 6:42 PM EDTFlash Flood WarningGSPIredell2 hr
Jul 29, 7:10 PM EDTFlash Flood WarningGSPMecklenburg110 min
Jul 29, 7:11 PM EDTSevere Thunderstorm WarningGSPCabarrus49 min

Nearby

Flash Flood Warnings in North Carolina, 2003Every flash flood warning in 2003

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.