Alert archive / South Carolina / Tornado Warnings in 2011

Tornado Warning 7, NWS Greenville-Spartanburg, SC

March 19, 2011Greenwood County, South Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Mar 19, 2011, 6:30 PM EDT for Greenwood County, South Carolina. It was in force for 30 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
Mar 19, 2011, 6:30 PM EDT (22:30 UTC)
Expired
Mar 19, 2011, 7:00 PM EDT
In force
30 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

County Greenwood County, SC

The radar

The Columbia radar (KCAE), 82 km from the middle of the area, began a volume at 22:30 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

Charleston AFB, SC (KCHS), launched 12:00Z, 10.5 hours before the alert went out and 230 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, Charleston AFB, SC at 12:00Z on 2011-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Charleston AFB, SC at 12:00Z on 2011-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1888 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
-18 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.

929 
WFUS52 KGSP 192230
TORGSP
SCC047-192300-
/O.NEW.KGSP.TO.W.0007.110319T2230Z-110319T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
630 PM EDT SAT MAR 19 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL GREENWOOD COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 700 PM EDT

* AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES NORTH OF
  DYSON...OR 12 MILES EAST OF GREENWOOD...MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DYSON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR STURDIER SHELTER.
OTHERWISE...GO TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF YOUR HOME
OR PLACE OF BUSINESS. MAKE SURE THERE ARE AS MANY WALLS AND FLOORS
BETWEEN YOU AND THE OUTSIDE AS POSSIBLE.

TO REPORT TORNADOES...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 3421 8206 3424 8200 3420 8193 3413 8186
      3401 8196 3401 8197
TIME...MOT...LOC 2230Z 329DEG 20KT 3419 8192

$$

JPT
1 follow-up statement
098 
WWUS52 KGSP 192252
SVSGSP

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

SCC047-192302-
/O.EXP.KGSP.TO.W.0007.000000T0000Z-110319T2300Z/
GREENWOOD SC-
652 PM EDT SAT MAR 19 2011

...THE TORNADO WARNING FOR EAST CENTRAL GREENWOOD COUNTY WILL EXPIRE
AT 700 PM EDT...

LAT...LON 3421 8206 3424 8200 3420 8193 3413 8186
      3401 8196 3401 8197
TIME...MOT...LOC 2252Z 329DEG 20KT 3409 8184

$$

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, 3:59 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Laurens, Pickens61 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, 7:20 PM EDTSpecial Weather StatementGSPOconee40 min

Nearby

Tornado Warnings in South Carolina, 2011Every tornado warning in 2011Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.