Alert archive / Georgia / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 346, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 11, 2003, 8:16 PM EDT for Hart County, Georgia. It was in force for 44 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 11, 2003, 8:16 PM EDT (00:16 UTC)
- Expired
- Aug 11, 2003, 9:00 PM EDT
- In force
- 44 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Hart County, GA
The radar
The Greer radar (KGSP), 93 km from the middle of the area, began a volume at 00:19 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.3 hours before the alert went out and 176 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
WUUS52 KGSP 120016
SVRGSP
GAC147-120100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
815 PM EDT MON AUG 11 2003
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN HART COUNTY IN NORTHEAST GEORGIA
* UNTIL 900 PM EDT
* AT 815 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM 9 MILES NORTHWEST OF HARTWELL...OR ABOUT 3 MILES NORTH
OF BOWERSVILLE. THE STORM WAS NEARLY STATIONARY.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
BOWERSVILLE AT 855 PM EDT.
THIS SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED BECAUSE THERE IS A
GOOD CHANCE OF BRIEF DAMAGING WINDS OVER SMALL AREAS...AND PERHAPS
LARGE HAIL. THIS SEVERE THUNDERSTORM WAS ALSO CAUSING AN UNUSUAL
AMOUNT OF CLOUD-TO-GROUND LIGHTNING
LAT...LON 3442 8310 3448 8306 3448 8298 3440 8294
3434 8294 3431 8303 3428 8311 3435 8311
$$
LANEWhat forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 11, 3:15 PM EDT, 5 hours 1 minute earlier.
Area forecast discussion, Aug 11, 3:15 PM EDT, 5 hours 1 minute 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, 14 hours 10 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, 4 hours 35 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, 4 hours 28 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, 9:23 PM EDT | Flash Flood Warning | GSP | Hart | 2 hr |
Nearby
Severe Thunderstorm Warnings in Georgia, 2003Every severe thunderstorm 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.