Alert archive / North Carolina / Flash Flood Warnings in 2003

Flash Flood Warning 91, NWS Greenville-Spartanburg, SC

July 30, 2003McDowell County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 30, 2003, 9:17 PM EDT for McDowell County, Rutherford County, North Carolina. It was in force for 3 hr. 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 30, 2003, 9:17 PM EDT (01:17 UTC)
Expired
Jul 31, 2003, 12:15 AM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

Counties McDowell County, NC, Rutherford County, NC

The radar

The Greer radar (KGSP), 76 km from the middle of the area, began a volume at 01:18 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 00:00Z, 1.3 hours before the alert went out and 197 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 00:00Z on 2003-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2003-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
6 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
113 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 310122
FFWGSP
NCC111-161-310415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
917 PM EDT WED JUL 30 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MCDOWELL COUNTY IN WESTERN NORTH CAROLINA
  RUTHERFORD COUNTY IN WESTERN NORTH CAROLINA

* UNTIL 1215 AM EDT

* AT 908 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED 2 AND 1/2 
  TO 3 INCHES OF RAIN HAS FALLEN OVER PARTS OF WESTER RUTHERFORD AND
  SOUTHERN MCDOWEEL COUNTIES AND MUCH MORE IS MOVING UP SLOWLY FROM  
  THE SOUTH.

* THIRSTY ROAD IN SOUTHER MCDOWELL COUNTY IS ALREADY FLOODED. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. EVEN MODERN SPORT UTILITY VEHICLES CANNOT BE SAFELY
DRIVEN THROUGH FLOOD WATERS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS. 

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.

$$

RBN

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 30, 3:45 PM EDT, 5 hours 32 minutes earlier.

Area forecast discussion, Jul 30, 3:45 PM EDT, 5 hours 32 minutes before
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
Hazardous weather outlook, Jul 30, 4:30 AM EDT, 16 hours 47 minutes before
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

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 10:14 PM EDTFlash Flood WarningGSPUnion3 hr
Jul 30, 10:28 PM EDTFlash Flood WarningGSPPolk3 hr
Jul 31, 12:10 AM EDTFlash Flood WarningGSPMcDowell, Rutherford3 hr

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.