Alert archive / South Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 287, NWS Greenville-Spartanburg, SC

August 23, 2014Cherokee County, Spartanburg County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 23, 2014, 5:01 PM EDT for Cherokee County, Spartanburg County, Union County, South Carolina. It was in force for 44 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
Aug 23, 2014, 5:01 PM EDT (21:01 UTC)
Expired
Aug 23, 2014, 5:45 PM EDT
In force
44 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Cherokee County, SC, Spartanburg County, SC, Union County, SC

The radar

The Greer radar (KGSP), 43 km from the middle of the area, began a volume at 21:04 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.0 hours before the alert went out and 213 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, Greensboro/Hi Pt, NC at 12:00Z on 2014-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 69 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, Greensboro/Hi Pt, NC at 12:00Z on 2014-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
69 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
1133 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
50 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 Aug 23, 4:24 PM EDT, 37 minutes earlier.

Area forecast discussion, Aug 23, 4:24 PM EDT, 37 minutes before
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Hazardous weather outlook, Aug 23, 4:10 PM EDT, 51 minutes before
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In the hours before

Special weather statement, Aug 23, 2:56 PM EDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
256 PM EDT SAT AUG 23 2014

NCZ509-510-SCZ003-007-231945-
EASTERN POLK-GREENVILLE MOUNTAINS-POLK MOUNTAINS-SPARTANBURG-
256 PM EDT SAT AUG 23 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN GREENVILLE...
SOUTHWESTERN POLK AND NORTHWESTERN SPARTANBURG COUNTIES THROUGH 345
PM EDT...

AT 253 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR COLUMBUS...MOVING SOUTH AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  TRYON...
  LANDRUM...

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

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

LAT...LON 3506 8205 3506 8222 3506 8223 3506 8236
      3530 8234 3531 8231 3533 8211

CDG
Special weather statement, Aug 23, 3:05 PM EDT, 1 hour 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
305 PM EDT SAT AUG 23 2014

SCZ006-231945-
GREATER GREENVILLE-
305 PM EDT SAT AUG 23 2014

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL GREENVILLE COUNTY
THROUGH 345 PM EDT...

AT 303 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CHERRYDALE POINT...OR NEAR DOWNTOWN
GREENVILLE...MOVING SOUTH AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  HAYWOOD MALL...
  I-85 AT PELHAM ROAD...
  SHOPS AT GREENRIDGE...
  I-85 AT AUGUSTA RD...
  DONALDSON CENTER...
  SIMPSONVILLE...

WIND GUSTS UP TO 40 MPH...AND TORRENTIAL RAINFALL ARE EXPECTED WITH
THIS STORM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3475 8246 3477 8245 3483 8249 3486 8248
      3490 8250 3497 8250 3500 8228 3491 8222
      3486 8223 3478 8215 3474 8217 3468 8246

CDG
Special weather statement, Aug 23, 3:20 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
320 PM EDT SAT AUG 23 2014

GAZ026-232000-
FRANKLIN-
320 PM EDT SAT AUG 23 2014

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN FRANKLIN COUNTY THROUGH
400 PM EDT...

AT 319 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR ROYSTON...OR 7 MILES SOUTHEAST OF
CARNESVILLE...MOVING SOUTH AT 15 MPH.

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

LAT...LON 3426 8334 3432 8340 3438 8339 3442 8309
      3438 8310 3432 8310 3426 8312 3423 8317
      3424 8326 3426 8331 3422 8336

CDG
Special weather statement, Aug 23, 3:44 PM EDT, 1 hour 17 minutes before
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Special weather statement, Aug 23, 4:29 PM EDT, 32 minutes before
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Special weather statement, Aug 23, 4:46 PM EDT, 15 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 8:33 PM EDTSpecial Weather StatementGSPAvery42 min
Aug 22, 8:53 PM EDTSpecial Weather StatementGSPMecklenburg52 min
Aug 22, 9:53 PM EDTSpecial Weather StatementGSPRowan67 min
Aug 22, 9:58 PM EDTSpecial Weather StatementGSPMecklenburg47 min
Aug 22, 10:46 PM EDTAreal Flood AdvisoryGSPGaston, Lincoln, Mecklenburg2 hr
Aug 22, 10:50 PM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg40 min
Aug 22, 11:02 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg43 min
Aug 22, 11:10 PM EDTSpecial Weather StatementGSPCabarrus65 min
Aug 22, 11:26 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan49 min
Aug 22, 11:45 PM EDTSpecial Weather StatementGSPCabarrus30 min
Aug 22, 11:56 PM EDTSpecial Weather StatementGSPUnion49 min
Aug 23, 2:56 PM EDTSpecial Weather StatementGSPPolk49 min
Aug 23, 5:09 PM EDTSpecial Weather StatementGSPCleveland51 min
Aug 23, 6:23 PM EDTSpecial Weather StatementGSPCaldwell52 min
Aug 23, 7:06 PM EDTSpecial Weather StatementGSPBurke39 min
Aug 23, 7:07 PM EDTSpecial Weather StatementGSPIredell53 min
Aug 23, 7:48 PM EDTSpecial Weather StatementGSPCatawba57 min
Aug 23, 2:12 PM EDTSpecial Weather StatementGSPPickens48 min
Aug 23, 2:20 PM EDTSpecial Weather StatementGSPOconee40 min
Aug 23, 2:24 PM EDTSevere Thunderstorm WarningGSPOconee66 min
Aug 23, 3:03 PM EDTAreal Flood AdvisoryGSPOconee117 min
Aug 23, 3:05 PM EDTSpecial Weather StatementGSPGreenville40 min
Aug 23, 3:19 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg56 min
Aug 23, 3:32 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Laurens58 min
Aug 23, 3:44 PM EDTSpecial Weather StatementGSPCherokee46 min
Aug 23, 4:08 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens, Spartanburg52 min
Aug 23, 4:29 PM EDTSpecial Weather StatementGSPLaurens46 min
Aug 23, 4:46 PM EDTSpecial Weather StatementGSPUnion74 min
Aug 23, 3:20 PM EDTSpecial Weather StatementGSPFranklin40 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2014Every severe thunderstorm warning in 2014

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.