Alert archive / Georgia / Flash Flood Warnings in 2003
Flash Flood Warning 116, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 11, 2003, 9:23 PM EDT for Hart County, Georgia. It was in force for 2 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
- Aug 11, 2003, 9:23 PM EDT (01:23 UTC)
- Expired
- Aug 11, 2003, 11:30 PM EDT
- In force
- 2 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Hart County, GA
The radar
The Greer radar (KGSP), 90 km from the middle of the area, began a volume at 01:23 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
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.4 hours before the alert went out and 179 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.
- Mixed-layer CAPE
- 860 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1376 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS52 KGSP 120124 FFWGSP GAC147-120330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 923 PM EDT MON AUG 11 2003 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * FLASH FLOOD WARNING FOR... WESTERN HART COUNTY IN NORTHEAST GEORGIA * UNTIL 1130 PM EDT * AT 913 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OCCURRING ACROSS WESTERN HART COUNTY...IN AREAS FROM BOWERSVILLE SOUTH TO EAST OF ROYSTON. RADAR ESTIMATES THAT IN EXCESS OF 3 INCHES OF RAIN HAS FALLEN ACROSS THIS AREA THIS EVENING. AS THUNDERSTORMS CONTINUE ACROSS THE AREA THIS EVENING... ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES APPEAR LIKELY ACROSS THE WARNED AREA. * SEVERE FLOODING OF LOW LYING AND POOR DRAINAGE AREAS IS EXPECTED TO ACCOMPANY THIS HEAVY RAINFALL. IN ADDITION...CREEKS AND STREAMS ACROSS THE WARNED AREA...INCLUDING SHOAL CREEK...LITTLE SHOAL CREEK...AND MOREA CREEK...AS WELL AS SMALLER TRIBUTARIES ARE EXPECTED TO OVERFLOW THEIR BANKS...AND PRODUCE FLOODING OF ADJACENT ROADWAYS AND LOWLANDS. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. 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. $$ LANE
2 follow-up statements
000 WGUS72 KGSP 120302 FFSGSP GAC147-120330- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1102 PM EDT MON AUG 11 2003 ...A FLASH FLOOD WARNING CONTINUES UNTIL 1130 PM EDT FOR WESTERN HART COUNTY... AT 1100 PM...NATIONAL WEATHER SERVICE RADAR INDICATED MODERATE TO HEAVY RAIN CONTINUED ACROSS THE WARNED AREA. ADDITIONAL RAINFALL AMOUNTS OF AN INCH OR MORE WILL BE POSSIBLE THIS EVENING. NO REPORTS OF FLOODING HAVE BEEN RECEIVED FROM HART COUNTY THIS EVENING. HOWEVER...RADAR ESTIMATES THAT IN EXCESS OF 4 INCHES OF RAIN HAS FALLEN ACROSS PORTIONS OF THE WARNED AREA SINCE 8 PM. WITH THIS AMOUNT OF RAIN...FLOODING IS LIKELY OCCURRING ALONG PORTIONS OF SUCH STREAMS AS BEAVERDAM CREEK...POOLES CREEK...AND SMALLER TRIBUTARIES. FLOODING OF LOW LYING AND POOR DRAINAGE DO NOT BECOME A FATALITY DO NOT CROSS FLOODED ROADS...THE ROAD COULD BE WASHED OUT FROM THE FLOW OF THE WATER...AND YOUR CAR COULD BE SWEPT AWAY BY THE SWIFTLY MOVING WATER. $$ LANE
000 WGUS72 KGSP 120337 FFSGSP GAC147-120350- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1137 PM EDT MON AUG 11 2003 ...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR WESTERN HART COUNTY HAS EXPIRED AS OF 1130 PM EDT... HEAVY RAIN WILL CONTINUE THROUGH THE EARLY MORNING HOURS ACROSS MUCH OF NORTHEAST GEORGIA...INCLUDING HART COUNTY. HOWEVER...CURRENT RADAR TRENDS INDICATE THAT THE HEAVIEST RAIN WILL FALL AWAY FROM THE AREAS THAT RECEIVED VERY HEAVY RAINFALL EARLIER THIS EVENING. SOME ROADWAYS STILL MAY BE COVERED WITH WATER. MOTORISTS ARE ADVISED TO AVOID DRIVING THROUGH FLOODED ROADWAYS. 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. $$ LANE
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 11, 3:15 PM EDT, 6 hours 8 minutes earlier.
Area forecast discussion, Aug 11, 3:15 PM EDT, 6 hours 8 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 315 PM EDT MON AUG 11 2003 RETROGRADING UPPER LEVEL TROUGH AXIS SHOULD ALLOW PRECIP COVERAGE TO STEADILY DIMINISH EACH DAY THIS WEEK. THE LONG TERM DRYING MAY BE OFFSET BY SHORT TERM INCREASES IN CONVECTIVE COVERAGE ALONG THE EASTERN ESCARPMENT AND SRN TIER UPSLOPE PREFERRED REGION. LOW LEVEL FLOWS VEERS AROUND TO SOUTHERLY AND THEN SE THROUGH TOMORROW... BEFORE UPPER LEVEL HEIGHTS CAN BUILD APPRECIABLY TO CAP OFF CONVECTION. WILL FAN OUT A NARROW SWATCH OF LIKELY POPS ALONG THE ESCARPMENT THIS EVENING AND THEN HIGH CHANCE FOR TOMORROW EVENING...AND TAPER DOWN TO CHANCE CATEGORY ERN PIEDMONT AND TN BORDER ZONES. THE ETA IS QUITE AGGRESSIVE WITH CLOUDINESS ASSOC WITH THE LOW LEVEL MOIST UPSLOPE...KEEPING BOUNDARY LAYER TEMPS IN THE 70S TOMORROW EAST OF THE BLUE RIDGE. FEEL THIS IS A LITTLE OVERDONE...BUT WILL STILL SHADE ALL TEMPS TOWARD THE COOLER ETA NUMBERS. 700 MB TEMPS WARM FROM +5 C TODAY TO +9 C ON WED AFTN. CONVECTION WILL GRADUALLY BECOME MORE INHIBITED THROUGH THE WEEK...AND SHOULD BE LARGELY CAPPED OFF BY THU AFTN. GFS STILL FEATURES DECAYING FRONT AND S/W DROPPING SOUTHWARD EAST OF THE UPPER RIDGE FOR FRI/SAT...BUT FEATURES HAVE NOT BEEN CONSISTENT IN STRENGTH AND TIMING. WILL GENERALLY HOLD ONTO ONLY DIURNAL SLIGHT CHC POPS UNDER THE RIDGE THU THROUGH MON. FCSTID = 33 GSP 69 82 67 86 / 50 50 50 30 AND 69 83 67 86 / 50 50 50 30 CLT 69 83 67 86 / 50 40 40 30 HKY 66 80 65 85 / 60 50 50 30 AVL 63 79 63 83 / 70 50 50 30 .GSP... GA...NONE. NC...NONE. SC...NONE. HG
Hazardous weather outlook, Aug 11, 6:06 AM EDT, 15 hours 17 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-111200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 606 AM EDT MON AUG 11 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE...TODAY SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING. SOME OF THESE THUNDERSTORMS COULD PRODUCE LARGE HAIL AND DAMAGING WIND. LOCALLY HEAVY RAINFALL IS POSSIBLE. .DAYS TWO THROUGH SEVEN... SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE AREA THROUGH THURSDAY. SCATTERED THUNDERSTORMS ARE EXPECTED FRIDAY IN NORTHEAST GEORGIA...UPSTATE SOUTH CAORLINA...AND THE SOUTHERN FOOTHILLS AND PIEDMONT OF NORTH CAROLINA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. 07
In the hours before
Special weather statement, Aug 11, 3:41 PM EDT, 5 hours 42 minutes before
GAZ010-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-019- 120300- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 341 PM EDT MON AUG 11 2003 ...A FEW SEVERE THUNDERSTORMS POSSIBLE THIS EVENING... SCATTERED THUNDERSTORMS WILL DEVELOP THROUGH THE EVENING HOURS ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. THE GREATEST COVERAGE OF THE THUNDERSTORMS WILL BE OVER THE EASTERN ESCARPMENT OF THE MOUNTAINS AND ADJACENT FOOTHILL LOCATIONS. A FEW OF THESE THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE HAIL AS LARGE AS PENNIES AND WIND GUSTS TO 60 MPH. FREQUENT LIGHTNING AND VERY HEAVY RAINFALL ARE ALSO LIKELY WITH ANY THUNDERSTORMS. THUNDERSTORMS REPEATEDLY AFFECTING THE SAME LOCATION COULD QUICKLY PRODUCE LOCALIZED FLOODING THIS EVENING. SPOTTER GROUPS ARE ASKED TO RELAY ANY REPORTS OF SEVERE WEATHER OR FLOODING TO THE NATIONAL WEATHER SERVICE. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE MEDIA OUTLET...IN CASE ANY WARNINGS BECOME NECESSARY. GERAPETRITIS
Special weather statement, Aug 11, 3:48 PM EDT, 5 hours 35 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-120300- SEVERE WEATHER OUTLOOK...CORRECTED FOR CODING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 348 PM EDT MON AUG 11 2003 ...A FEW SEVERE THUNDERSTORMS POSSIBLE THIS EVENING... SCATTERED THUNDERSTORMS WILL DEVELOP THROUGH THE EVENING HOURS ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. THE GREATEST COVERAGE OF THE THUNDERSTORMS WILL BE OVER THE EASTERN ESCARPMENT OF THE MOUNTAINS AND ADJACENT FOOTHILL LOCATIONS. A FEW OF THESE THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE HAIL AS LARGE AS PENNIES AND WIND GUSTS TO 60 MPH. FREQUENT LIGHTNING AND VERY HEAVY RAINFALL ARE ALSO LIKELY WITH ANY THUNDERSTORMS. THUNDERSTORMS REPEATEDLY AFFECTING THE SAME LOCATION COULD QUICKLY PRODUCE LOCALIZED FLOODING THIS EVENING. SPOTTER GROUPS ARE ASKED TO RELAY ANY REPORTS OF SEVERE WEATHER OR FLOODING TO THE NATIONAL WEATHER SERVICE. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE MEDIA OUTLET...IN CASE ANY WARNINGS BECOME NECESSARY. GERAPETRITIS
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 8:16 PM EDT | Severe Thunderstorm Warning | GSP | Hart | 44 min |
Nearby
Flash Flood Warnings in Georgia, 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.