Flash Flood Warning 90, NWS Greenville-Spartanburg, SC

000 
WGUS72 KGSP 310117
FFSGSP
SCC045-310315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
908 PM EDT WED JUL 30 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 1115 PM EDT FOR GREENVILLE
COUNTY...

GREENVILLE POLICE DEPARTMENT REPORTED NUMEROUS ROADS FLOODED ACROSS
THE CITY OF GREENVILLE...INCLUDING I-385 AND STONE AVENUE... 
PLEASANTBURG AND TURNER DRIVE...AND MOHAWK DRIVE AND SUMMIT.

LATEST STAGE ON THE REEDY RIVER WAS 9.5 FEET...WHICH FLOODS 
CLEVELAND PARK. RADAR RAINFALL ESTIMATES THAT A SWATH OF 2 TO 3 
INCHES HAS FALLEN FROM THE GSP AIRPORT WESTWARD ACROSS GREATER 
GREENVILLE...WITH ISOLATED AMOUNTS NEAR 4 INCHES SINCE SHORTLY
BEFORE 8 PM. 

RADAR CONTINUES TO INDICATE VERY HEAVY RAIN ACROSS GREATER 
GREENVILLE...WITH ONLY A GRADUAL DECREASE IN INTENSITY EXPECTED
THROUGH LATE EVENING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. USE CAUTION IN OR NEAR ANY SMALL
CREEK TONIGHT...AND AVOID ROUTES THAT YOU KNOW ARE FLOOD PRONE.

$$

55

000 
WGUS72 KGSP 310305
FFSGSP
SCC045-310315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1103 PM EDT WED JUL 30 2003

...FLASH FLOODING BECOMING SIGNIFICANT ACROSS GREENVILLE AND 
GREENVILLE COUNTY...

LATE THIS EVENING...THE REEDY RIVER IN DOWNTOWN GREENVILLE WAS AT 
10.3 FEET AND RISING.  THE RIVER IS EXPECTED TO REACH AROUND 13 FEET 
DURING THE OVERNIGHT HOURS.  SIGNIFICANT FLOODING OF STREETS BEGINS 
AROUND 11 FEET...AND WATER BEGINS TO ENTER SOME BUILDINGS.  AT 12 
FEET...WATER ENTERS SOME HOMES IN BEREA ALONG TRIBUTARIES. A PUBLIC 
REPORT WAS RECEIVED AT 11 PM THAT FLOOD WATER HAD INDEED ENTERED 
HOMES IN THAT AREA.

ON THE EAST SIDE...THE TAYLORS AND GREER AREAS HAVE HAD HEAVY 
RAINFALL.  THE BRUSHY CREEK AT DEL NORTE WAS ALREADY AT 9 FEET AND 
RISING QUICKLY.  THE CREST THERE IS LIKELY TO BE WELL ABOVE 10 
FEET...CAUSING SIGNIFICANT FLOODING.  THE UPPER REACHES OF THE 
ENOREE WILL FLOOD AROUND THE EAST SIDE...AND EVENTUALLY FLOOD 
DOWNSTREAM TO EAST OF SIMPSONVILLE.

THERE IS ALSO A REPORT OF A DAM BREAK IN NORTHERN GREENVILLE 
COUNTY...BUT DETAILS WERE NOT YET AVAILABLE.

THE FLASH FLOOD WARNING WILL BE EXTENDED.

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.

$$
JONES

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
345 PM EDT WED JUL 30 2003

LAPS ANALYSIS SHOWS 10 KT SELY FLOW INTO THE SRN APPALACHIANS
ATTM...WITH CAPE VALUES AROUND AROUND 2000 J/KG FEEDING INTO THIS
AREA AS WELL. TSRA HAVE DEVELOPED IN THIS AXIS OF INSTABILITY AND
MOISTURE CONVERGENCE. FLOW ALOFT IS WEAK OUT OF THE WEST...AROUND 10
KTS...RESULTING IN CELLS IN THE UPSLOPE AREAS THAT ARE VERY SLOW TO
MOVE THIS AFTN. PW/S ARE AROUND 1.90 THIS AFTN. WATER VAPOR IMAGERY
AND MORNING RAOBS SHOW QUITE A MOISTURE DISCONTINUITY ACROSS THE
MTNS. THIS WEAK DRY AIR ENTRAINMENT ALOFT IS EXPECTED TO HELP
STRENGTHEN OUTFLOW AND GRADUALLY PUSH THE HEAVIEST RAIN INTO THE WRN
FOOTHILLS. WORKING ON THAT ASSUMPTION...HAVE HOISTED A FLOOD WATCH
FOR THE SRN NC MTNS...THE FAR SW NC FOOTHILLS...NRN UPSTATE AND
PARTS OF NE GA. FFW ALREADY OUT FOR RABUN COUNTY.

FARTHER TO THE NE...LACK OF CONVERGENCE AND LIMITED HEATING UNDER
THE SRN EXTENSION OF WEAK WEDGE RIDGE HAS LIMITED PCPN TO ONLY A
FEW LGT SHRA. MODELS LIFT A WEAK TMB N OVERNGHT. HAVE THE LOWEST
POPS IN THE NE ZONES...BUT EXPECT THAT THEY WL EVENTUALLY SEE
SOMETHING AS THE TMB RETREATS.

TO MAKE LIFE EVEN MORE INTERESTING...BOTH ETA AND GFS BRING SIG PCPN
IN THE SW NC MTNS LATE TNGT IN THE FACE OF WEAK LLVL ISENTROPIC
UPGLIDE. WE AND MRX SEEM TO BE ON THE SAME PAGE WITH THIS...AND HAVE
GONE LIKELY POPS LATE TNGT IN THE FAR SW MTNS. IF THIS PCPN DOES
DEVELOP...THIS WL BE ANOTHER AREA THAT WL HAVE TO BE WATCHED FOR
FLOOD POTENTIAL.

THE ETA...GFS AND FWC POPS ARE ALL IN THE LIKELY RANGE THU. PW/S ARE
NEAR 2 INCHES. FORCING IS WEAK...THOUGH PVA DOES INCREASE IN THE
LATE AFTN. LLVL FLOW BECOMES MORE SWLY IN THE AFTN...THOUGH FLOW IN
THE IMMEDIATE LEE STILL SHOWS A BACKING TENDENCY. IN DEFERENCE TO
THE HIGH POPS AND PROBABLY CONTINUED WEAK UPSLOPE...WENT WITH A
LIKELY POP AGAIN TMRW AFTN AND EVENING.

LOOKS LIKE MORE CONVECTION FRIDAY AS A BETTER SHORT WAVE CROSSES THE
REGION...MID LEVELS DRY OUT AND STRONG LLVL CONVERGENCE DEVELOPS IN
THE WRN ZONES. MORE OF THE SAME ON SAT...ONLY WITH STRONGER SHEAR.
COULD BE MORE ORGANIZED SEVERE WEATHER IF THE GFS VERIFIES ON
SAT.

FCSTID =   14
GSP   70  86  71  86 /  60  60  60  50
AND   71  88  72  87 /  60  60  60  40
CLT   70  86  71  87 /  60  60  60  50
HKY   68  83  69  84 /  40  60  60  50
AVL   66  82  67  82 /  50  60  60  40

.GSP...
GA...FLOOD WATCH UNTIL 10 PM FOR ZONES GAZ010...GAZ017>018.

NC...FLOOD WATCH UNTIL 10 PM FOR ZONES NCZ063>067.

SC...FLOOD WATCH UNTIL 10 PM FOR ZONES SCZ001>007.

MCAVOY

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-301100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
430 AM EDT WED JUL 30 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 THIS AFTERNOON AND
EVENING.

.DAYS TWO THROUGH SEVEN...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THE
EXTENDED PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

RB