Alert archive / South Carolina / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 320, NWS Greenville-Spartanburg, SC

September 1, 20135 counties in South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 1, 2013, 2:33 PM EDT for 5 counties in South Carolina. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 1, 2013, 2:33 PM EDT (18:33 UTC)
Expired
Sep 1, 2013, 3:30 PM EDT
In force
57 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Abbeville County, SC, Anderson County, SC, Greenville County, SC, Greenwood County, SC, Laurens County, SC

The radar

The Greer radar (KGSP), 49 km from the middle of the area, began a volume at 18:32 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.6 hours before the alert went out and 235 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 2013-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1924 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2013-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
1924 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
690 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Sep 1, 2:04 PM EDT, 29 minutes earlier.

Area forecast discussion, Sep 1, 2:04 PM EDT, 29 minutes before
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Hazardous weather outlook, Sep 1, 4:20 AM EDT, 10 hours 13 minutes before
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In the hours before

Special weather statement, Sep 1, 11:06 AM EDT, 3 hours 27 minutes before
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Special weather statement, Sep 1, 2:21 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
221 PM EDT SUN SEP 1 2013

SCZ010-011-011900-
ABBEVILLE-ANDERSON-
221 PM EDT SUN SEP 1 2013

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN ABBEVILLE AND SOUTHERN
ANDERSON COUNTIES THROUGH 300 PM EDT...

AT 216 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR STARR...OR 11 MILES SOUTH OF ANDERSON...
MOVING EAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  SECESSION LAKE...
  ANTREVILLE...
  DUE WEST...

SMALL HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

LAT...LON 3427 8275 3428 8277 3445 8277 3448 8231
      3444 8228 3438 8228 3434 8233 3432 8231
      3428 8231 3426 8228 3423 8228

07
Special weather statement, Sep 1, 2:24 PM EDT, 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
224 PM EDT SUN SEP 1 2013

GAZ029-SCZ010-011-011915-
ABBEVILLE-ANDERSON-ELBERT-
224 PM EDT SUN SEP 1 2013

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ABBEVILLE...NORTHERN
ELBERT AND SOUTHERN ANDERSON COUNTIES THROUGH 315 PM EDT...

AT 220 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTH OF RUCKERSVILLE...OR 8 MILES
NORTHEAST OF ELBERTON...MOVING EAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  LAKE RUSSELL...
  LOWNDESVILLE...
  SECESSION LAKE...
  ANTREVILLE...

SMALL HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

LAT...LON 3412 8290 3425 8290 3429 8278 3430 8278
      3433 8241 3408 8241

07

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 9:47 PM EDTSpecial Weather StatementGSPMacon43 min
Sep 1, 11:06 AM EDTSpecial Weather StatementGSPMitchell24 min
Sep 1, 2:41 PM EDTSpecial Weather StatementGSPMcDowell49 min
Sep 1, 3:01 PM EDTSpecial Weather StatementGSPAlexander44 min
Sep 1, 3:20 PM EDTSevere Thunderstorm WarningGSPAlexander, Caldwell, Catawba, Iredell55 min
Sep 1, 3:24 PM EDTSpecial Weather StatementGSPHenderson51 min
Sep 1, 3:33 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell, McDowell57 min
Sep 1, 3:47 PM EDTSpecial Weather StatementGSPIredell43 min
Sep 1, 3:50 PM EDTSpecial Weather StatementGSPMcDowell40 min
Sep 1, 3:54 PM EDTSpecial Weather StatementGSPJackson, Transylvania51 min
Sep 1, 4:07 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell, Catawba, Iredell, McDowell53 min
Sep 1, 4:17 PM EDTSevere Thunderstorm WarningGSPBurke, Cleveland, McDowell, Rutherford58 min
Sep 1, 4:18 PM EDTFlash Flood WarningGSPAlexander, Caldwell3 hr
Sep 1, 4:32 PM EDTSpecial Weather StatementGSPDavie43 min
Sep 1, 4:48 PM EDTSevere Thunderstorm WarningGSPAlexander, Catawba, Davie, Iredell, Rowan57 min
Sep 1, 4:53 PM EDTSevere Thunderstorm WarningGSPHenderson, Polk, Rutherford52 min
Sep 1, 4:56 PM EDTSevere Thunderstorm WarningGSPCleveland, Lincoln, Rutherford64 min
Sep 1, 4:59 PM EDTSpecial Weather StatementGSPHenderson31 min
Sep 1, 5:03 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Lincoln57 min
Sep 1, 5:13 PM EDTSevere Thunderstorm WarningGSPBuncombe, Henderson, McDowell, Polk, Rutherford62 min
Sep 1, 5:26 PM EDTFlash Flood WarningGSPHenderson, Polk, Rutherford3 hr
Sep 1, 5:38 PM EDTSpecial Weather StatementGSPCleveland52 min
Sep 1, 5:51 PM EDTSevere Thunderstorm WarningGSPCabarrus, Iredell, Mecklenburg, Rowan54 min
Sep 1, 6:12 PM EDTSpecial Weather StatementGSPGaston, Mecklenburg48 min
Sep 1, 6:24 PM EDTSpecial Weather StatementGSPGaston51 min
Sep 1, 7:33 PM EDTSevere Thunderstorm WarningGSPUnion57 min
Sep 1, 2:21 PM EDTSpecial Weather StatementGSPAbbeville39 min
Sep 1, 2:24 PM EDTSpecial Weather StatementGSPAbbeville51 min
Sep 1, 4:01 PM EDTSevere Thunderstorm WarningGSPLaurens, Spartanburg, Union59 min
Sep 1, 4:38 PM EDTSpecial Weather StatementGSPCherokee37 min
Sep 1, 4:45 PM EDTSpecial Weather StatementGSPPickens30 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2013Every severe thunderstorm warning in 2013

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.