Alert archive / North Carolina / Flash Flood Warnings in 2003

Flash Flood Warning 123, NWS Greenville-Spartanburg, SC

August 17, 2003Cleveland County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 17, 2003, 5:02 PM EDT for Cleveland County, North Carolina. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 17, 2003, 5:02 PM EDT (21:02 UTC)
Expired
Aug 17, 2003, 7:00 PM EDT
In force
118 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

County Cleveland County, NC

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.0 hours before the alert went out and 163 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 2003-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 994 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 2003-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
994 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1043 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
1 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 172102
FFWGSP
NCC045-172300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
502 PM EDT SUN AUG 17 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL AND EASTERN CLEVELAND COUNTY IN THE PIEDMONT OF NORTH 
  CAROLINA

* UNTIL 700 PM EDT

* AT 5 PM EDT...WEATHER RADAR SHOWED SHOWERS AND THUNDERSTORMS
  OVER CLEVELAND COUNTY...MAINLY EAST OF A LINE FROM CASAR TO EARL.
  RAINFALL WAS EXTREMELY HEAVY...WITH RADAR ESTIMATING AS MUCH AS
  TWO AND A HALF INCHES OF RAIN JUST NORTHEAST OF SHELBY...AND
  NEARLY TWO INCHES OF RAIN IN NORTHEAST CLEVELAND COUNTY. A HAM
  RADIO OPERATOR REPORTED AN INCH AND A HALF OF RAIN FELL IN FALLSTON
  IN 30 MINUTES.

* THROUGH 7 PM...MODERATE TO HEAVY RAIN WILL BE SLOW TO LEAVE AREAS
  OF CENTRAL AND EASTERN CLEVELAND COUNTY THAT HAVE ALREADY RECEIVED
  HEAVY RAIN SINCE MID AFTERNOON. STREAMS AND CREEKS WILL EXPERIENCE
  RISES TO NEAR BANKFULL...AND SOME MAY COME OUT OF THEIR BANKS TO 
  FLOOD ROADS AND THREATEN PROPERTY. SOME CREEKS THAT ARE SUSCEPTIBLE
  TO FLASH FLOODING INCLUDE BUFFALO CREEK...MAPLE CREEK AND LONG 
  BRANCH. THESE COULD IMPACT HIGHWAYS 182...180 AND 18. SEVERE URBAN
  FLOODING COULD DEVELOP ON THE EAST SIDE OF SHELBY...AND IN KINGS
  MOUNTAIN.

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.

LAT...LON 3544 8146 3517 8133 3518 8161 3557 8161
          3555 8153

$$
BURRUS
2 follow-up statements
000 
WGUS72 KGSP 172213
FFSGSP
NCC045-172300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
607 PM EDT SUN AUG 17 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 700 PM EDT FOR CENTRAL AND 
EASTERN CLEVELAND COUNTY...

AT 605 PM...WEATHER RADAR SHOWED A BATCH OF MODERATE RAINFALL 
STRETCHING FROM NEAR FALLSTON...TO STUBBS. RAINFALL RATES WERE NOT AS
LARGE AS THEY WERE EARLIER...BUT WILL STILL BE HIGH ENOUGH TO RESULT 
IN FLOODING OF SHALLOWER STREAMS AND CREEKS.

COUNTY PERSONNEL REPORTED FLOODING ALONG WATTERSON ROAD IN THE 
GROVER AREA. STREAMS AND CREEKS WERE RUNNING NEAR BANKFULL IN THE 
NORTHERN END OF THE COUNTY...BUT NO FLOODING HAD BEEN REPORTED FROM 
NORTHERN CLEVELAND COUNTY. THE FLASH FLOOD WARNING WILL REMAIN IN 
EFFECT THROUGH ITS VALID EXPIRATION TIME.

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
000 
WGUS72 KGSP 172304
FFSGSP
NCC045-172330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
704 PM EDT SUN AUG 17 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR CENTRAL AND 
EASTERN CLEVELAND COUNTY HAS EXPIRED AS OF 700 PM EDT...

AT 7 PM...WEATHER RADAR SHOWED SCATTERED SHOWERS AND THUNDERSTORMS 
MOVING OUT OF EASTERN RUTHERFORD COUNTY...INTO WESTERN CLEVELAND 
COUNTY. NO RAINFALL REMAINED OVER THE CENTRAL OR EASTERN PARTS OF 
THE COUNTY. THROUGH THE REMAINDER OF THE EVENING...SCATTERED STORMS 
WILL BE POSSIBLE JUST ABOUT ANYWHERE IN THE COUNTY...BUT RAINFALL 
RATES ARE FORECAST TO BE MUCH LESS THAN THEY WERE EARLIER...WHEN 
MANY LOCATIONS RECEIVED 2 TO 3 INCHES OF RAINFALL.

THROUGH 7 PM...THE ONLY REPORT OF FLOODING WAS ON WATTERSON 
ROAD...NEAR THE TOWN OF GROVER. COUNTY OFFICIALS REPORT THE ROAD HAD 
CLEARED UP...AND THERE WERE NO OTHER KNOWN FLOOD PROBLEMS.

WATER LEVELS COULD TEMPORARILY RISE AGAIN...AND SOME STREAMS OR 
CREEKS MAY APPROACH BANKFULL...BUT ADDITIONAL FLASH FLOODING IS NOT 
ANTICIPATED UNLESS STORMS REMAIN OVER ONE LOCATION FOR LONG PERIODS 
OF TIME.

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 Aug 17, 2:41 PM EDT, 2 hours 21 minutes earlier.

Area forecast discussion, Aug 17, 2:41 PM EDT, 2 hours 21 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
241 PM EDT SUN AUG 17 2003

EAST COAST UPPER TROUGH TO PERSIST THROUGH MON...THEN WILL START
PROGRESSING E. BY WED UPPER RIDGE LOCATED OVER OH VALLEY WITH WEAK
LOW SOMEWHERE IN DEEP S. COLD FRONT TO DROP S INTO AREA ACCOMPANIED
BY STRONG SHORTWAVE. WILL CARRY AFTERNOON CONVECTION OVER INTO
EVENING AS LIKEY POPS. WITH SLOW PROGRESS TO FRONT...HAVE SLIGHT
CHANCE POP OVERNIGHT. FRONT SLOW TO PUSH S...AND ENOUGH MOISTURE AND
INSTABILITY REMAIN FOR SLIGHT CHANCE POPS TUE-THU.

BY FRI ANOTHER E COAST TROUGH IS CARVED OUT AS OH VALLEY RIDGE
PROGRESSES. MOISTURE INCREASES IN ADVANCE OF ANOTHER COLD
FRONT...AND HAVE ADDED CHANCE POPS TO FRI. COLD FRONT CROSSES AREA
SAT...WITH ANOTHER DAY OF CHANCE POPS. FRONT SLOWS JUST SE OF AREA
SUN...WITH ENOUGH MOISTURE TO WARRANT SLIGHT CHANCE POPS.

NOT MUCH TEMPERATURE OR DEW POINT CHANGE THIS PACKAGE...AS COOLING
BEHIND FRONTS ALMOST NEGLIGIBLE. TEMPERATURES BASICALLY NEAR
CLIMATIC NORMALS...WITH A SLIGHT DROP OFF LATE IN WEEK.

FCSTID =    7
GSP   70  89  68  88 /  60  30  30  20
AND   70  90  69  89 /  60  30  30  20
CLT   70  89  69  88 /  60  30  30  20
HKY   69  88  67  87 /  60  30  30  20
AVL   64  85  64  83 /  60  30  30  20

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

O7
Hazardous weather outlook, Aug 17, 5:45 AM EDT, 11 hours 17 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-171145-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
545 AM EDT SUN AUG 17 2003

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

.DAY ONE...TODAY

A COLD FRONT WILL MOVE SLOWLY TOWARD THE WESTERN CAROLINAS AND
NORTHEAST GEORGIA TODAY. SHOWERS AND THUNDERSTORMS WILL ACCOMPANY
THIS FRONT INTO THE AREA. SOME OF THESE STORMS COULE PRODUCE SEVERE
WEATHER AND LOCALIZED FLASH FLOODING. PLEASE SEE THE SEVERE WEATHER
OUTLOOK...CAESPSGSP FOR FURTHER INFORMATION.

.DAYS TWO THROUGH SEVEN...

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ON MONDAY. A
FEW SEVERE STORMS WILL BE POSSIBLE. THE REMAINDER OF THE WEEK IS
EXPECTED TO BE DRIER...WITH NO MORE THAN ISOLATED SHOWERS AND
THUNDERSTORMS EXPECTED THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY.

LANE

In the hours before

Special weather statement, Aug 17, 11:38 AM EDT, 5 hours 24 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-172100-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1138 AM EDT SUN AUG 17 2003

...SEVERE WEATHER POSSIBLE THIS AFTERNOON AND EVENING...

A FRONT DRAPED ACROSS THE OHIO VALLEY AND CENTRAL APPALACHIANS THIS
MORNING...WILL SAG SLOWLY TOWARD THE WESTERN CAROLINAS AND NORTHEAST
GEORGIA THIS AFTERNOON AND EVENING. AN UPPER AIR DISTURBANCE WILL
ALSO MOVE TOWARD THE AREA. AS THIS DISTURBANCE INTERACTS WITH
THE FRONT AND AN UNSTABLE AIRMASS...SCATTERED TO NUMEROUS SHOWERS
AND THUNDERSTORMS ARE EXPECTED TO DEVELOP EARLY TO MID AFTERNOON
ACROSS THE MOUNTAINS...FOOTHILLS...AND PIEDMONT OF WESTERN NORTH
CAROLINA. THE STORMS SHOULD THEN MOVE INTO UPSTATE SOUTH CAROLINA
AND NORTHEAST GEORGIA.

THE ATMOSPHERE WAS WORKED OVER PRETTY WELL YESTERDAY AFTERNOON AND
EVENING BY THUNDERSTORMS...AND SURFACE MOISTURE WAS NOT QUITE AS
HIGH LATE THIS MORNING...AS IT HAS BEEN DURING RECENT DAYS.
HOWEVER...THE DEGREE OF INSTABILITY EXPECTED DURING THE AFTERNOON
AND EVENING STILL WILL BE ENOUGH TO CAUSE SOME STORMS TO
BECOME SEVERE...WITH DAMAGING STRAIGHT LINE WINDS BEING THE PRIMARY
THREAT. IN ADDITION...LOCALLY HEAVY OR EXCESSIVE RAINFALL MAY RESULT
IN FLASH FLOODING IN SOME AREAS. ALSO...LARGE HAIL TO ABOUT QUARTER
SIZE MAY OCCUR IN SOME STORMS.

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.

JONES
Special weather statement, Aug 17, 3:32 PM EDT, 1 hour 30 minutes before
GAZ010-017-018-026-028-029-SCZ011-012-019-180000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
332 PM EDT SUN AUG 17 2003

...SEVERE THUNDERSTORM THREAT BECOMING MORE LIKELY FOR NORTHEAST
GEORGIA AND THE LOWER PIEDMONT IN SOUTH CAROLINA...

SEVERE THUNDERSTORM WATCHES HAVE ALREADY BEEN ISSUED FARTHER NORTH.
ISOLATED TO SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER
UPSTATE SOUTH CAROLINA AND NORTHEAST GEORGIA LATE THIS AFTERNOON.
SOME OF THESE MAY BECOME SEVERE...PRODUCING LARGE HAIL AND DAMAGING
WIND GUSTS.  ALSO...LOCALLY EXCESSIVE RAINFALL MAY OCCUR...CAUSING
URBAN OR FLASH FLOODING.

AN EVEN BETTER CHANCE OF ORGANIZED SEVERE WEATHER MAY COME LATER IN
THE EVENING...WHEN LINES OR CLUSTER OF STORMS ARE EXPECTED TO MOVE
THROUGH.

STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR THE LATEST WEATHER
INFORMATION OR SEVERE WEATHER WATCHES OR WARNINGS.

JONES
Special weather statement, Aug 17, 4:18 PM EDT, 44 minutes before
NCZ068>071-SCZ009-172119-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
418 PM EDT SUN AUG 17 2003

...STRONG THUNDERSTORMS TO AFFECT LAKE NORMAN AND THE CHARLOTTE
METRO AREA...

AT 415 PM EDT...WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG
THUNDERSTORMS OVER EASTERN LINCOLN COUNTY...MOVING SOUTHEAST AT 25
MPH. THROUGH 5 PM...THESE STORMS WILL AFFECT THE SOUTHERN PART OF
LAKE NORMAN AS WELL AS INTERSTATE 77 BETWEEN HUNTERSVILLE AND
CHARLOTTE. ANOTHER CLUSTER OF STRONG STORMS WILL AFFECT THE
SOUTHEAST PART OF CLEVELAND COUNTY...BETWEEN SHELBY AND KINGS
MOUNTAIN.

BOTH OF THESE CLUSTERS OF STRONG THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING WINDS OF UP TO 55 MPH...CONTINUOUS CLOUD TO
GROUND LIGHTNING...SMALL HAIL AND TORRENTIAL RAIN. IF THE STORMS
BECOME A LITTLE STRONGER...WARNINGS WILL BE NEEDED.

MCAVOY
Local storm report, Aug 17, 4:46 PM EDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
446 PM EDT SUN AUG 17 2003

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

410 PM     7 E LINCOLNTON            NC   WIND DAMAGE
08/17/03   LINCOLN                        TRAINED HAM SPOTTER
                                          REPORTED TWO TREES DOWN
                                          ON HWY 150...ONE 18 IN
                                          DIAMETER AND THE OTHER
                                          ABOUT 12.

415 PM     3 E CHERRYVILLE           NC   NON-SVR REPORT
08/17/03   GASTON                         HAM REPORTED 45-50 MPH
                                          WIND GUST...TORRENTIAL
                                          RAIN PARTIALLY IMPEDING
                                          TRAFFIC AND FREQUENT
                                          LIGHTNING.

LAMB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 4:44 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Lincoln61 min
Aug 17, 5:55 PM EDTFlash Flood WarningGSPRowan110 min
Aug 17, 7:50 PM EDTSevere Thunderstorm WarningGSPDavie40 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.