Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 13, NWS Greenville-Spartanburg, SC

March 19, 20114 counties in South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 19, 2011, 3:59 PM EDT for 4 counties in South Carolina. It was in force for 61 min. 8 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
Mar 19, 2011, 3:59 PM EDT (19:59 UTC)
Expired
Mar 19, 2011, 5:00 PM EDT
In force
61 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Anderson County, SC, Greenville County, SC, Laurens County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 34 km from the middle of the area, began a volume at 20:02 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

TimeReportWhereRemark
Mar 19, 4:03 PM EDTHAIL 0.5Mauldin, SCMARBLE SIZED HAIL
Mar 19, 4:05 PM EDTHAIL 0.75Greenville, SCPENNY HAIL COVERED GROUND AND ROAD
Mar 19, 4:07 PM EDTHAIL 16 Sse Greenville, SCGANTT FIRE DEPARTMENT STATION 2 EXPERIENCED HAIL COVERING THE GROUND WITH HAIL AS LARGE AS A QUARTER WHICH LASTED AT LEAST 5 MINUTES. HAD STRONG WIND GUSTS AS WELL BUT ONLY SMALL BRANCHES WERE BROKEN.
Mar 19, 4:15 PM EDTTSTM WND DMGPiedmont, SCLARGE BRANCHES BROKEN
Mar 19, 4:15 PM EDTHAIL 0.53 Sw Greenville, SCMARBLE SIZED HAIL COVERING THE GROUND AT PLEASANTBURG AND MAULDIN ROAD
Mar 19, 4:20 PM EDTHAIL 0.753 Sw Mauldin, SC
Mar 19, 4:30 PM EDTHAIL 0.75Simpsonville, SC
Mar 19, 4:45 PM EDTHAIL 0.5Simpsonville, SCHAIL WAS 1 INCH DEEP ON THE GROUND

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.0 hours before the alert went out and 246 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, Peachtre/Fal Fld, GA at 12:00Z on 2011-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 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, Peachtre/Fal Fld, GA at 12:00Z on 2011-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939Sfc1 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
137 J/kg
Mixed-layer CIN
-225 J/kg
Mixed-layer LCL
1049 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
22 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.

766 
WUUS52 KGSP 191959
SVRGSP
SCC007-045-059-077-192100-
/O.NEW.KGSP.SV.W.0013.110319T1959Z-110319T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
359 PM EDT SAT MAR 19 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA...
  NORTHWESTERN LAURENS COUNTY IN UPSTATE SOUTH CAROLINA...
  EAST CENTRAL PICKENS COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHERN GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 500 PM EDT

* AT 354 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  DOWNTOWN GREENVILLE...MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHOPS AT GREENRIDGE AND PELHAM ROAD AT I-85...
  DONALDSON CENTER AND MAULDIN...
  FIVE FORKS...
  SIMPSONVILLE...
  FORK SHOALS AND FOUNTAIN INN...
  PRINCETON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3440 8224 3486 8265 3494 8235 3452 8192
      3436 8219
TIME...MOT...LOC 1959Z 323DEG 21KT 3482 8241

$$

JPT
2 follow-up statements
617 
WWUS52 KGSP 192028
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
428 PM EDT SAT MAR 19 2011

SCC007-045-059-077-192100-
/O.CON.KGSP.SV.W.0013.000000T0000Z-110319T2100Z/
ANDERSON SC-LAURENS SC-PICKENS SC-GREENVILLE SC-
428 PM EDT SAT MAR 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHERN GREENVILLE...EAST CENTRAL PICKENS...NORTHWESTERN LAURENS
AND NORTHEASTERN ANDERSON COUNTIES...

AT 424 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR SIMPSONVILLE...OR 12 MILES SOUTHEAST OF DOWNTOWN
GREENVILLE...MOVING SOUTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
FOUNTAIN INN...FORK SHOALS...PRINCETON...GRAY COURT...HICKORY
TAVERN...BOYD MILL POND...ORA AND LAURENS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3440 8224 3486 8265 3494 8235 3452 8192
      3436 8219
TIME...MOT...LOC 2028Z 323DEG 21KT 3468 8229

$$

JPT
583 
WWUS52 KGSP 192053
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
453 PM EDT SAT MAR 19 2011

SCC007-045-059-077-192103-
/O.EXP.KGSP.SV.W.0013.000000T0000Z-110319T2100Z/
ANDERSON SC-LAURENS SC-PICKENS SC-GREENVILLE SC-
453 PM EDT SAT MAR 19 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN GREENVILLE...EAST
CENTRAL PICKENS...NORTHWESTERN LAURENS AND NORTHEASTERN ANDERSON
COUNTIES WILL EXPIRE AT 500 PM EDT...

LAT...LON 3440 8224 3486 8265 3494 8235 3452 8192
      3436 8219
TIME...MOT...LOC 2053Z 323DEG 21KT 3456 8218

$$

JPT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 2:40 PM EDTSpecial Weather StatementGSPPickens50 min
Mar 19, 3:03 PM EDTSpecial Weather StatementGSPOconee42 min
Mar 19, 3:07 PM EDTSpecial Weather StatementGSPGreenville38 min
Mar 19, 3:51 PM EDTSpecial Weather StatementGSPGreenville54 min
Mar 19, 3:54 PM EDTSpecial Weather StatementGSPSpartanburg66 min
Mar 19, 5:03 PM EDTSpecial Weather StatementGSPLaurens57 min
Mar 19, 5:10 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens65 min
Mar 19, 5:42 PM EDTTornado WarningGSPGreenwood, Laurens48 min
Mar 19, 6:30 PM EDTTornado WarningGSPGreenwood30 min
Mar 19, 7:20 PM EDTSpecial Weather StatementGSPOconee40 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011Every 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.