Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 148, NWS Greenville-Spartanburg, SC

May 11, 2011Rabun County, Stephens County, Georgia; Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 11, 2011, 6:21 PM EDT for Rabun County, Stephens County, Georgia; Oconee County, South Carolina. It was in force for 54 min. 1 report 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: May 11, 2011, 6:21 PM EDT (22:21 UTC)
Expired: May 11, 2011, 7:15 PM EDT
In force: 54 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Rabun County, GA, Stephens County, GA, Oconee County, SC

The radar

The Greer radar (KGSP), 97 km from the middle of the area, began a volume at 22:23 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.

What was reported inside it

Time	Report	Where	Remark
May 11, 6:36 PM EDT	HAIL 2.75	Long Creek, SC	GOLF BALL TO BASEBALL SIZE HAIL AT THE INTERSECTION OF HIGHWAY 76 AND ACADEMY RD. WINDOWS BROKEN OUT OF VEHICLES.

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 one storm report to this severe thunderstorm warning; the first came 15 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.4 hours before the alert went out and 189 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1711 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 33 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

902 
WUUS52 KGSP 112221
SVRGSP
GAC241-257-SCC073-112315-
/O.NEW.KGSP.SV.W.0148.110511T2221Z-110511T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
621 PM EDT WED MAY 11 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN STEPHENS COUNTY IN NORTHEAST GEORGIA...
  EASTERN RABUN COUNTY IN NORTHEAST GEORGIA...
  WESTERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 715 PM EDT

* AT 619 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 3 MILES
  SOUTHWEST OF MOUNTAIN REST...OR 10 MILES NORTHWEST OF WALHALLA...
  MOVING SOUTH AT 10 MPH.

OTHER STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP INTO 
EASTERN RABUN COUNTY BY 7 PM.

* LOCATIONS IMPACTED INCLUDE...
  LONG CREEK...
  WALHALLA...
  WESTMINSTER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ALTHOUGH LARGE HAIL TO THE SIZE OF GOLF BALLS AND PING PONG BALLS IS 
THE MAIN THREAT WITH THIS SEVERE THUNDERSTORM...BRIEF DAMAGING WINDS 
COULD ALSO OCCUR.

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 3467 8337 3469 8334 3473 8338 3499 8334
      3501 8306 3462 8301 3459 8317 3462 8339
TIME...MOT...LOC 2221Z 356DEG 10KT 3484 8321

$$

1 follow-up statement

260 
WWUS52 KGSP 112235
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
635 PM EDT WED MAY 11 2011

GAC241-257-SCC073-112315-
/O.CON.KGSP.SV.W.0148.000000T0000Z-110511T2315Z/
STEPHENS GA-RABUN GA-OCONEE SC-
635 PM EDT WED MAY 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR WESTERN OCONEE...EASTERN RABUN AND NORTHERN STEPHENS COUNTIES...

AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE TWO SEVERE THUNDERSTORMS. THE FIRST SEVERE THUNDERSTORM... 
CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN 
EXCESS OF 60 MPH...WAS LOCATED NEAR LONG CREEK...OR 9 MILES 
SOUTHWEST OF WALHALLA...MOVING SOUTH AT 20 MPH.

THE OTHER SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZED 
HAIL...WAS LOCATED BETWEEN CLAYTON AND PINE MOUNTAIN GEORGIA. THAT 
STORM WAS ALSO MOVING SOUTH AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WESTMINSTER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAIN THREAT WITH THIS SEVERE THUNDERSTORM IS DAMAGING HAIL TO THE
SIZE OF GOLF BALLS. HAIL OF THIS SIZE CAN CAUSE INJURY AND 
SIGNIFICANT DAMAGE TO PROPERTY. IF POSSIBLE...MOVE VEHICLES AND OTHER
VALUABLE PROPERTY INSIDE OR UNDERNEATH A CARPORT BEFORE THE STORM 
ARRIVES.

THIS SEVERE THUNDERSTORM WILL PRODUCE WIND SPEEDS STRONG ENOUGH TO 
CAPSIZE EVEN LARGE BOATS. BOATERS ON THE NORTHERN END OF LAKE 
HARTWELL SHOULD MOVE TO SHORE IMMEDIATELY!

&&

LAT...LON 3467 8337 3469 8334 3473 8338 3499 8334
      3501 8306 3462 8301 3459 8317 3462 8339
TIME...MOT...LOC 2234Z 002DEG 19KT 3471 8321

$$

MOORE

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 May 11, 2:30 PM EDT, 3 hours 51 minutes earlier.

Area forecast discussion, May 11, 2:30 PM EDT, 3 hours 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
230 PM EDT WED MAY 11 2011

.SYNOPSIS...
AN UPPER LEVEL RIDGE WILL REMAIN OVER THE REGION THROUGH THURSDAY
WHILE A WEAK SURFACE BOUNDARY MEANDERS OVER THE AREA. A CLOSED UPPER
LOW AND ASSOCIATED COLD FRONT WILL APPROACH THE AREA FROM THE WEST
FRIDAY AND MOVE THROUGH THE AREA THIS WEEKEND.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 230 PM...MOST OF THE FA IS UNDER A DAY 1 SLIGHT RISK FROM THE
STORM PREDICTION CENTER. THE ONLY EXCEPTION IS THE SW MTNS OF
NC...MOST OF NE GA AND THE GOLDEN CORNER OF THE UPSTATE. SREF BULK
SHEAR VALUES ARE UNDER 30KTS IN THESE AREAS...SO IT MAKES SENSE THAT
CONVECTION WOULD HAVE MORE TROUBLE ORGANIZING. HOWEVER...THE HIGHEST
SBCAPE VALUES ARE OVER THE SW PART OF THE FA...SO PULSE SEVERE IS
POSSIBLE EVEN THERE. PER THE RUC...THE STEEP MID LEVEL LAPSE RATES
SEEN ON THE OHX SOUNDING THIS MORNING SHOULD HAVE OVERSPREAD MOST OF
THE FA BY NOW. ALL OF THIS BODES WELL FOR STRONG STORMS AGAIN TODAY.
WITH THE STEEP...NEARLY DRY ADIABATIC MID LEVEL LAPSE RATES...LARGE
HAIL IS STILL LIKELY...ALONG WITH SOME DAMAGING STRAIGHT LINE WINDS.
THE SFC WIND FIELDS MATCH THE NAM/RUC/GFS IS SHOWING A WEAK SFC
FRONT SOMEWHERE BETWEEN GSP AND CLT...EXTENDING BACK UP TOWARD AVL.
THE AREA OF LLVL CONVERGENCE...FAVORED BY OROGRAPHIC ASCENT...IS IS
PROBABLY WHERE THE STORMS WILL INITIATE. THE 12 UTC 4 KM WRF ALSO
SHOWS ABUNDANT STRONG CONVECTION OVER THE FA LATE THIS
AFTN...ESPECIALLY ACROSS THE WRN NC ZONES. SO EVEN THOUGH NOTHING
HAS DEVELOPED YET...LIKELY POPS WILL BE RETAINED OVER THE NC BLUE
RIDGE...FOOTHILLS...WRN PIEDMONT AND THE NRN UPSTATE AS IT/S ONLY A
MATTER OF TIME UNTIL STORMS DEVELOP. FORTUNATELY...THE WEAKER MID
LEVEL WIND FIELD SHOULD PREVENT ANYTHING AS ORGANIZED OR STRONG AS
WE HAD LAST NIGHT.

NOT EXPECTING ANY UPSTREAM MCS ACTIVITY TONIGHT...SO ONCE STORMS
MOVE OUT OF THE REGION OR DISSIPATE BY LATE EVENING THAT SHOULD BE
IT. A WEAK RIDGE OF SFC HIGH PRESSURE WILL TURN THE WINDS OUT OF THE
E OVER MOST OF THE FA TONIGHT...AND LOW CLOUDS ARE EXPECTED TO
DEVELOP ACROSS MOST OF THE FA.

&&

.SHORT TERM /THURSDAY THROUGH SATURDAY/...
AS OF 200 PM WEDNESDAY...WEAK SFC BOUNDARY REMAINS OVER THE AREA THU
WITH ANOTHER CHC OF SHWRS/TSTMS...ESP OVER THE MTNS. MODELS IN GOOD
AGREEMENT BRINGING A CLOSED UPPER LOW ACROSS THE PLAINS THU
NIGHT-FRI AND OVER THE OH VALLEY SAT. A COLD FRONT AHEAD OF THIS
FEATURE WILL MOVE ACROSS THE MS VALLEY FRI AND INTO THE W CWA SAT.
WARM...MOIST S FLOW AHEAD OF THE SYSTEM WILL KEEP TEMPS WELL ABOVE
AVG WITH AT LEAST A CHC OF SHWRS/TSTMS EACH DAY. TEMPS WILL BE A
COUPLE DEG COOLER SAT WITH OVC SKIES AND LIKELY CONVECTION OVER THE
MTNS/FOOTHILLS...SOLID CHC ELSEWHERE.

&&

.LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/...
AS OF 230 PM WEDNESDAY...ECMWF AND GFS CONTINUE TO SHOW UPPER LOW
AND ASSOC SFC COLD FRONT MOVG ACROSS THE AREA SAT NIGHT-SUN. EXPECT
A SOLID CHC OF SHRWS/TSTMS WITH TEMPS ABOVE AVG IN THE WARM S FLOW
AS THE AND INCREASED CLOUD COVER OVERNIGHT. ANOTHER SHORTWAVE DROPS
SE INTO THE UPPER TROF OVER THE E US MON-TUE TO KEEP A CHC OF
CONVECTION IN THE AREA. UPPER LOW BEGINS TO MOVE NE WED WITH DRYER
AIRMASS MOVG IN BEHIND IT BUT SOME MOISTURE WRAPS AROUND LOW AS IT
TRACKS NW SO HELD ON TO CHC POPS...MAINLY FOR THE MTNS...WED AFTN.
TEMPS WILL BE NEAR AVG MON...BELOW AVG TUE-WED.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
AT KCLT...WINDS HAVE BEEN LIGHT AND VARIABLE ALL DAY AT KCLT. AS A
STATIONARY FRONT IS SITUATED RIGHT OVER THE AIRFIELD...THE FLOW
SHOULD REMAIN WEAK INTO THE EVENING. AT SOME POINT THE WINDS SHOULD
TURN OUT OF THE SE AS PRESSURES LOWER OVER THE FOOTHILLS.
THUNDERSTORMS WILL DEVELOP IN THE THAT FOOTHILL LEE TROUGH AND THERE
IS A GOOD CHANCE THEY WILL AFFECT THE AIRFIELD. HOWEVER...UNTIL THE
STORMS ACTUALLY DEVELOP...TIMING IS STILL HARD TO NAIL DOWN. MY
GUESS IS THAT THE BEST CHANCES WILL BE A COUPLE HOURS EITHER SIDE OF
00 UTC. LATER TONIGHT IFR CIGS SHOULD DEVELOP AS WINDS TURN OUT OF
THE NE BEHIND THE FRONT WHICH SHOULD PUSH TO THE E SLOPES OF THE
MTNS.

ELSEWHERE...MUCH LIKE KCLT...THUNDERSTORMS ARE EXPECTED TO DEVELOP
OVER THE REGION LATER THIS AFTN AND EVENING. THEY SHOULD START FIRST
AROUND KAVL AND THEN PUSH SE. KAND MIGHT BE A LITTLE TOO FAR SOUTH
FOR THE BEST COVERAGE...BUT KGSP...KGMU AND KHKY HAVE A GOOD CHANCE
OF SEEING SOMETHING STARTING AROUND 21 OR 22 UTC. AT LEAST MVFR CIGS
ARE EXPECTED LATER TONIGHT OVER THE NRN UPSTATE...WITH IFR UP INTO
THE NC FOOTHILLS. KAVL WILL PROBABLY SEE A PERIOD OF LOW CLOUDS OR
FOG.

OUTLOOK...SCATTERED CEILING AND VISIBILITY RESTRICTIONS IN
THUNDERSTORMS MOST NUMEROUS OVER MOUNTAINS AND DURING AFTERNOONS AND
EVENINGS THROUGH END OF WEEK. MORNING MVFR FOG POSSIBLE WHERE RAIN
FELL THE NIGHT BEFORE.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...RB
NEAR TERM...MCAVOY
SHORT TERM...RB
LONG TERM...RB
AVIATION...MCAVOY

Hazardous weather outlook, May 11, 2:58 PM EDT, 3 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
258 PM EDT WED MAY 11 2011

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-121900-
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-
258 PM EDT WED MAY 11 2011

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 TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER
THE BLUE RIDGE AND FOOTHILLS LATE THIS AFTERNOON. THE STORMS ARE
THEN EXPECTED TO MOVE SOUTH...ACROSS THE FOOTHILLS AND PIEDMONT
INTO THE EVENING HOURS. SOME STORMS COULD BECOME SEVERE...
PRODUCING DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Local storm report, May 11, 5:19 PM EDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
519 PM EDT WED MAY 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0404 PM     HAIL             BALSAM                  35.43N 83.09W
05/11/2011  E0.88 INCH       JACKSON            NC   COUNTY OFFICIAL

&&

BSH

Local storm report, May 11, 5:35 PM EDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
535 PM EDT WED MAY 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0435 PM     HAIL             3 E LAKE TOXAWAY        35.13N 82.88W
05/11/2011  E0.88 INCH       TRANSYLVANIA       NC   FIRE DEPT/RESCUE

&&

BSH

Local storm report, May 11, 6:01 PM EDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
601 PM EDT WED MAY 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0524 PM     HAIL             1 W SALEM               34.89N 83.00W
05/11/2011  E1.75 INCH       OCONEE             SC   COUNTY OFFICIAL

            TIME ESTIMATED FROM RADAR.

0536 PM     HAIL             2 E MOUNTAIN REST       34.87N 83.12W
05/11/2011  E1.00 INCH       OCONEE             SC   COUNTY OFFICIAL

            HAIL OBSERVED AT THE OCONEE STATE PARK. TIME ESTIMATED
            FROM RADAR.

&&

NED

Local storm report, May 11, 6:09 PM EDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
609 PM EDT WED MAY 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     HAIL             3 SW MOUNTAIN REST      34.84N 83.19W
05/11/2011  E2.75 INCH       OCONEE             SC   COUNTY OFFICIAL

            OCONEE COUNTY RELAYED A PUBLIC REPORT OF GOLF BALL TO
            BASEBALL SIZED HAIL ON WHETSTONE ROAD...SW OF MOUNTAIN
            REST.

&&

BSH

Local storm report, May 11, 6:11 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
611 PM EDT WED MAY 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     HAIL             3 SW WALHALLA           34.74N 83.10W
05/11/2011  E0.88 INCH       OCONEE             SC   TRAINED SPOTTER

            SPOTTER REPORTS DIME TO NICKEL SIZED HAIL NEAR THE
            INTERSECTION OF HESSE HIGHWAY AND ROCK CRUSHER ROAD.

&&

BSH

Local storm report, May 11, 6:17 PM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
617 PM EDT WED MAY 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     HAIL             9 NNW SALEM             35.01N 83.04W
05/11/2011  E1.00 INCH       OCONEE             SC   PUBLIC

            HAIL UP TO THE SIZE OF QUARTERS AT THE BAD CREEK HYDRO
            STATION.

&&

BSH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 5:28 PM EDT	Severe Thunderstorm Warning	GSP	Rabun	62 min
May 11, 6:49 PM EDT	Severe Thunderstorm Warning	GSP	Rabun	56 min
May 11, 6:54 PM EDT	Severe Thunderstorm Warning	GSP	Habersham, Rabun, Stephens	66 min
May 10, 11:55 PM EDT	Severe Thunderstorm Warning	GSP	York	65 min
May 11, 12:04 AM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Greenville, Laurens, Spartanburg, Union and 1 more	56 min
May 11, 12:36 AM EDT	Severe Thunderstorm Warning	GSP	Chester, York	54 min
May 11, 12:51 AM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Greenville, Greenwood, Laurens, Spartanburg and 2 more	54 min
May 11, 7:27 AM EDT	Special Weather Statement	GSP	Spartanburg	48 min
May 11, 4:09 PM EDT	Severe Thunderstorm Warning	GSP	Oconee, Pickens	66 min
May 11, 4:59 PM EDT	Severe Thunderstorm Warning	GSP	Oconee, Pickens	61 min
May 11, 5:13 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	32 min
May 11, 5:24 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens	44 min
May 11, 6:57 PM EDT	Special Weather Statement	GSP	Spartanburg	48 min
May 11, 7:18 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	57 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Severe Thunderstorm Warnings in South Carolina, 2011 Every severe thunderstorm warning in 2011

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.