Alert archive / Georgia / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 96, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 11, 2007, 4:16 PM EDT for Hart County, Georgia. It was in force for 59 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 11, 2007, 4:16 PM EDT (20:16 UTC)
- Expired
- Jun 11, 2007, 5:15 PM EDT
- In force
- 59 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), 88 km from the middle of the area, began a volume at 20:18 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 4:26 PM EDT | TSTM WND DMG | 6 Nw Hartwell, GA | A COUPLE OF TREES DOWN ALONG JUNCTION 77 RD. IN THE NORTHWESTERN PART OF HART COUNTY. |
| Jun 11, 4:43 PM EDT | TSTM WND DMG | Hartwell, GA | TREES DOWN IN HARTWELL...WINDOWS BLOWN OUT OF LOCAL BUSINESS...AND SIGNS BLOWN OVER AT A SERVICE STATION. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 10 minutes after it went out.
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 1:31 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.3 hours before the alert went out and 181 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
- 346 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 1138 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KGSP 112016 SVRGSP GAC147-112115- /O.NEW.KGSP.SV.W.0096.070611T2016Z-070611T2115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 416 PM EDT MON JUN 11 2007 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HART COUNTY IN NORTHEAST GEORGIA * UNTIL 515 PM EDT * AT 412 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9 MILES NORTHWEST OF HARTWELL...AND WAS MOVING SOUTHEAST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... HARTWELL BY 450 PM EDT... PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND DOORS UNTIL THE STORM PASSES. TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER... 1 8 7 7...6 3 3...6 7 7 2. LAT...LON 3452 8297 3448 8318 3423 8298 3430 8285 $$ KRENTZ
2 follow-up statements
000 WWUS52 KGSP 112045 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 441 PM EDT MON JUN 11 2007 GAC147-112115- /O.CON.KGSP.SV.W.0096.000000T0000Z-070611T2115Z/ HART GA- 441 PM EDT MON JUN 11 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR HART COUNTY... AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM HAS A HISTORY OF KNOCKING DOWN TREES IN HARTWELL. RIGHT NOW...THIS STORM IS LOCATED 5 MILES NORTHWEST OF HARTWELL...MOVING SOUTHEAST AT 10 MPH. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND DOORS UNTIL THE STORM PASSES. LAT...LON 3452 8297 3448 8318 3423 8298 3430 8285 $$ KRENTZ/DOUTHAT
000 WWUS52 KGSP 112112 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 511 PM EDT MON JUN 11 2007 GAC147-112121- /O.EXP.KGSP.SV.W.0096.000000T0000Z-070611T2115Z/ HART GA- 511 PM EDT MON JUN 11 2007 ...THE SEVERE THUNDERSTORM WARNING FOR HART COUNTY EXPIRES AT 515 PM EDT... THE STORM HAS MOVED SOUTH OF THE WARNED AREA AND THE WARNING WILL BE ALLOWED TO EXPIRE ON SCHEDULE. LAT...LON 3452 8297 3448 8318 3423 8298 3430 8285 $$ KRENTZ/DOUTHAT
What 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 Jun 11, 2:53 PM EDT, 1 hour 23 minutes earlier.
Area forecast discussion, Jun 11, 2:53 PM EDT, 1 hour 23 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 253 PM EDT MON JUN 11 2007 .SYNOPSIS... HIGH PRESSURE OVER THE SOUTHEAST REGION WILL WEAKEN THIS AFTERNOON AS AN UPPER LEVEL TROUGH CROSSES THE REGION FROM THE NORTH. FOR THE REMAINDER OF THE WEEK...AN UPPER LEVEL LOW WILL REMAIN NEARLY STATIONARY OFF THE NEW ENGLAND COAST. THIS WILL REINFORCE A COOLER AIRMASS ACROSS THE EAST COAST THROUGH FRIDAY AND MAINTAIN NEAR NORMAL SUMMERTIME TEMPERATURES. && .NEAR TERM /UNTIL MIDNIGHT TONIGHT/... SUFFICIENT HEATING HAS BROKEN THROUGH THE CLOUD COVER TO INITIATE CONVECTIVE STORMS THAT ARE TAPPING THE VERY UNSTABLE LAPES RATES IN THE RANGE OF 2-3K J/KG. LATEST RUC DEPICTS CONFLUENT ASYMPTOTE IN SURFACE STREAMLINE PATTERN EXTENDING FROM NORTHEAST GA THROUGH UPSTATE SC INTO WESTERN NC... VERY CLOSE TO THE BLUE RIDGE ESCARPMENT. MOST UNSTABLE AIR IS TO THE EAST OF THIS BOUNDARY SO IT APPEARS WESTERN PORTION OF MOUNTAINS UNLIKELY TO EXPERIENCE SIGNIFICANT STORMS. NORTHWEST FLOW ALOFT IN MID AND UPPER LEVELS WILL CAUSE STORMS TO MOVE TOWARD THE SOUTHEAST. THUNDERSTORMS WILL CONTINUE AFTER SUNSET AS SURFACE CONVERGENCE AND AXIS OF MOST UNSTABLE AIR DRIFT AWAY FROM MOUNTAINS INTO THE WESTEN PORTION OF THE PIEDMONT. WITH LOSS OF SURFACE HEATING... CONVECTION WILL WEAKEN AND GRADUALLY DIMINISH BETWEEN 00Z AND 03Z. LIGHT EASTERLY FLOW WILL CONTINUE OVERNIGHT... SO LINGERING SHOWERS ARE A POSSIBILITY WHERE UPSLOPE IS MOST PRONOUNCED... PRIMARILY WESTERN PIEDMONT AND FOOTHILLS INTO THE EASTERN PORTION OF THE MOUNTAINS. && .SHORT TERM /MIDNIGHT THROUGH 6 PM TUESDAY/... 500 MB CUTOFF LOW SOUTH OF NOVA SCOTIA APPEARS TO BE RETROGRADING SLIGHTLY IN GFS AS WELL-DEFINED TROUGH ROTATES AROUND THE CENTER AND APPROACHES THE CWA FROM THE NORTH TUESDAY MORNING. SURFACE HIGH PRESSURE OVER GREAT LAKES WILL CAUSE LIGHT EAST AND SOUTHEAST WIND FLOW TO CONTINUE BUT WILL BE REPLACED BY NORTHEAST WIND AFTER PASSAGE OF WEAK TROUGH... OR FRONT... CURRENTLY ALONG EASTERN SIDE OF APPALACHIANS. FAIRLY COLD TEMPERATURES ALOFT WITH 500 MB TROUGH WILL STEEPEN LAPSE RATES AND POSSIBLY LEAD TO STRONG TO SEVERE THUNDERSTORMS AGAIN TOMORROW. COLD ADVECTION ALOFT WILL BE MAXIMIZED BETWEEN 12Z AND 18Z WHICH MEANS GREATEST ADVECTIVE CHANGES WILL OCCUR BEFORE MAXIMUM HEATING. HOWEVER... COLD AIR POOL WILL BE OVER CWA DURING AFTERNOON AND HEATING. SO... PERHAPS BEST CHANCE OF ORGANIZED CONVECTION WILL OCCUR DURING LATE MORNING WITH PULSE-TYPE CONVECTION MOST LIKELY DURING AFTERNOON. && .LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/... LOW PRESSURE REMAINS OFF THE GA/SC COAST FOR MOST OF THE EXTENDED PERIOD. MODELS IN FAIRLY GOOD AGREEMENT DURING THE MIDDLE OF THE WEEK BUT START TO DIVERGE BY THE WEEKEND. NCEP GUIDANCE PREFERS EUROPEAN MODELS IN THE OUT PERIODS. THIS KEEPS A NORTHERLY FLOW AS SMALL IMPULSES WRAP AROUND THE LOW AND ENHANCES CONVECTIVE ACTIVITY THROUGHOUT THE SOUTHEAST. DURING MIDWEEK I PREFERRED THE MAV GUIDANCE WITH A BIAS TO THE DRY SIDE...BASED MORE ON PERSISTENCE THAN ANYTHING ELSE. TEMPS WERE A COMPROMISE BETWEEN THE MET AND MAV. AS WE GET CLOSER TO THE WEEKEND...I BECAME MORE RELIANT ON NCEP SOLUTION. && .AVIATION /19Z MONDAY THROUGH SATURDAY/... WEAK AXIS OF CONVERGENCE ALONG THE MOUNTAINS WILL CONTRIBUTE TO THE DEVELOPMENT OF SCATTERED SHOWERS AND THUNDERSTORMS IN UPSLOPE FLOW DURING THE LATTER PART OF THE AFTERNOON AND INTO THE EVENING. ISOLATED THUNDERSTORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WIND. LIGHT EAST AND SOUTHEAST WIND FLOW WILL CONTINUE TO ADVECT LOW LEVEL MOISTURE INTO THE AREA THUS CONTRIBUTING TO SCT TO BKN CLDS AROUND 3K FT. THUNDERSTORMS THAT DEVELOP ACROSS MOUNTAINS AND FOOTHILLS WILL MOVE TO THE SOUTHEAST WITH LOCAL IFR CONDITIONS GENERALLY BETWEEN 21Z AND 01Z. CONVECTIVE STORMS WILL DIMINISH AFT 01Z BUT SUFFICIENT MOISTURE EXISTS FOR VISIBILITIES LOWERING TO BELOW 3 MILES BY 09Z WITH ISOLATED CEILINGS BELOW 1K FEET ESPECIALLY AVL AND TAF SITES IN WESTEN PIEDMONT AND FOOTHILLS. VISIBILITY WILL IMPROVE TO 6 MILES OR GREATER BY 15Z TUESDAY WITH CEILINGS AT OR ABOVE 10K FT. AVIATION OUTLOOK...SURFACE HIGH PRESSURE CENTERED TO THE NORTH WILL CONTINUE A LIGHT EASTERLY WIND FLOW THAT WILL ADVECT ENOUGH MOISTURE INTO THE AREA TO FUEL SCATTERED AFTERNOON AND EVENING THUNDERSTORMS THROUGH SATURDAY. RELATIVELY COLD TEMPERATURES ALOFT ASSOCIATED WITH AN UPPER LEVEL TROUGH WILL CONTRIBUTE TO UNSTABLE LAPSE RATES WITH ATTENDANT STRONG AFTERNOON THUNDERSTORMS. LOW LEVEL MOISTURE LIKELY TO CAUSE LOWERED LATE NIGHT AND EARLY MORNING CEILINGS AND VISIBILITIES IN STRATUS AND FOG. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...SBK NEAR TERM...LGL SHORT TERM...LGL LONG TERM...VAD AVIATION...LGL
Hazardous weather outlook, Jun 11, 11:46 AM EDT, 4 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1146 AM EDT MON JUN 11 2007 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-121600- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER- IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA- ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA- HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE- MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS- GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK- ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 1146 AM EDT MON JUN 11 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND CONTINUE INTO THE EVENING. THE AIR MASS ACROSS THE REGION IS VERY UNSTABLE... ESPECIALLY OVER EXTREME NORTHEAST GEORGIA... UPSTATE SOUTH CAROLINA... AND THE FOOTHILLS AND WESTERN PIEDMONT OF NORTH CAROLINA. A LIMITING FACTOR IN THE DEVELOPMENT OF THUNDERSTORMS IS THE THICK CLOUD COVER THAT WAS OVER THE REGION DURING THE MORNING. SOME BREAKS IN THE CLOUDS ARE LIKELY DURING THE AFTERNOON. IF THE BREAKS DEVELOP... SUFFICIENT HEATING WILL OCCUR TO TRIGGER THE DEVELOPMENT OF SCATTERED THUNDERSTORMS. IF THE CLOUD COVER PERSISTS... MINIMAL HEATING WILL RESULT IN ONLY SHOWERS AND ISOLATED THUNDERSTORMS. HOWEVER... ANY THUNDERSTORMS THAT DEVELOP WILL HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND DAMAGING WIND. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY STRONG THUNDERSTORMS ARE AGAIN POSSIBLE OVER THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TUESDAY AFTERNOON. SOME OF THESE STORMS COULD BECOME SEVERE AND PRODUCE LARGE...DAMAGING HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. LGL
In the hours before
Local storm report, Jun 11, 3:01 PM EDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
301 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0150 PM TSTM WND DMG WAXHAW 34.92N 80.74W
06/11/2007 UNION NC TRAINED SPOTTER
MULTIPLE LARGE BRANCHES DOWN...1 LARGE TREE DOWN...PEA
SIZE HAIL...HEAVY RAIN
0256 PM HAIL ANDERSON 34.52N 82.65W
06/11/2007 E0.88 INCH ANDERSON SC TRAINED SPOTTER
NICKEL SIZE HAIL ON NORTH STREET IN DOWNTOWN ANDERSON.
&&
SGL/GADLocal storm report, Jun 11, 3:05 PM EDT, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
305 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0237 PM HAIL 5 SE ROCK HILL 34.89N 80.97W
06/11/2007 E0.75 INCH YORK SC COUNTY OFFICIAL
3/4 INCH HAIL REPORTED NEAR LESSLIE.
&&
SGL/GADLocal storm report, Jun 11, 3:22 PM EDT, 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
322 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0310 PM HAIL CHESTER 34.71N 81.21W
06/11/2007 E1.00 INCH CHESTER SC DEPT OF HIGHWAYS
QUARTER SIZED HAIL REPORTED IN CHESTER.
&&
SGL/GADLocal storm report, Jun 11, 4:00 PM EDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
400 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0356 PM HAIL 5 S GASTONIA 35.18N 81.17W
06/11/2007 E0.88 INCH GASTON NC TRAINED SPOTTER
NICKEL SIZE HAIL REPORTED 5 MILES SOUTH OF GASTONIA.
&&
SGL/GADLocal storm report, Jun 11, 4:03 PM EDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
403 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0240 PM TSTM WND DMG 10 NW PICKENS 34.99N 82.83W
06/11/2007 PICKENS SC LAW ENFORCEMENT
2 TREES DOWN AT CLEO-CHAPMAN HW AND MILL CREEK RD
NORTHWEST OF PICKENS.
0315 PM TSTM WND DMG 1 S PICKENS 34.87N 82.71W
06/11/2007 PICKENS SC LAW ENFORCEMENT
1 TREE DOWN AT HW 178 AND KNOLLWOOD HEIGHTS RD JUST SOUTH
OF PICKENS.
&&
BSHLocal storm report, Jun 11, 4:09 PM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
409 PM EDT MON JUN 11 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0340 PM HAIL 1 E CENTRAL 34.72N 82.77W
06/11/2007 E0.75 INCH PICKENS SC TRAINED SPOTTER
SPOTTER REPORTS PENNY SIZED HAIL LASTED FOR ABOUT 10
MINUTES NEAR CENTRAL.
&&
BSHThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 5:03 PM EDT | Severe Thunderstorm Warning | GSP | Elbert | 57 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.