Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

May 28, 2021Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at May 28, 2021, 3:21 PM EDT for Spartanburg County, South Carolina. It was in force for 24 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
May 28, 2021, 3:21 PM EDT (19:21 UTC)
Expired
May 28, 2021, 3:45 PM EDT
In force
24 min
Issued by
NWS Greenville-Spartanburg, SC

County Spartanburg County, SC

The radar

The Greer radar (KGSP), 21 km from the middle of the area, began a volume at 19:20 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, 7.4 hours before the alert went out and 237 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 2021-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 106 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 2021-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
106 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1467 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

902 
WWUS82 KGSP 281921
SPSGSP

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
321 PM EDT Fri May 28 2021
 
SCZ007-013-281945-
Union SC-Spartanburg SC-
321 PM EDT Fri May 28 2021

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL SPARTANBURG AND
NORTHWESTERN UNION COUNTIES UNTIL 345 PM EDT...

At 320 PM EDT, Doppler radar was tracking a strong thunderstorm 14
miles southwest of Spartanburg, or near Woodruff, moving northeast at
35 mph.

Locations to be impacted include...
Spartanburg, Woodruff, Pacolet, Roebuck, Jonesville, Pacolet Mills,
Reidville, Croft State Park, Moore and USC Upstate.

Wind gusts up to 40 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds can blow down trees that are dead, or that have weakened
root systems. Outdoor furniture and similar items can be tossed
around if not anchored. Seek shelter indoors.

&&

LAT...LON 3470 8207 3472 8207 3476 8211 3475 8212
      3478 8213 3478 8215 3480 8217 3480 8216
      3484 8220 3509 8186 3495 8176 3493 8176
      3493 8174 3480 8165 3467 8202
TIME...MOT...LOC 1920Z 236DEG 30KT 3477 8207 

$$

HG

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 3:08 PM EDTSpecial Weather StatementGSPLincoln37 min
May 28, 3:28 PM EDTSpecial Weather StatementGSPMecklenburg32 min
May 28, 3:39 PM EDTSpecial Weather StatementGSPGaston36 min
May 28, 3:53 PM EDTSpecial Weather StatementGSPGaston37 min
May 28, 4:08 PM EDTSpecial Weather StatementGSPRowan22 min
May 28, 4:21 PM EDTSpecial Weather StatementGSPGraham24 min
May 28, 4:26 PM EDTSpecial Weather StatementGSPCabarrus, Rowan34 min
May 28, 4:31 PM EDTSpecial Weather StatementGSPGaston29 min
May 28, 4:44 PM EDTSpecial Weather StatementGSPSwain31 min
May 28, 4:48 PM EDTSpecial Weather StatementGSPCabarrus27 min
May 28, 4:50 PM EDTSpecial Weather StatementGSPMecklenburg25 min
May 28, 5:03 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan27 min
May 28, 5:17 PM EDTSpecial Weather StatementGSPMecklenburg28 min
May 28, 5:44 PM EDTSpecial Weather StatementGSPUnion31 min
May 28, 5:53 PM EDTSpecial Weather StatementGSPGraham, Swain52 min
May 28, 6:01 PM EDTSpecial Weather StatementGSPMadison, Mitchell, Swain59 min
May 28, 6:34 PM EDTSpecial Weather StatementGSPAvery, Mitchell, Yancey56 min
May 28, 6:38 PM EDTSpecial Weather StatementGSPGraham, Haywood, Jackson, Macon, Swain67 min
May 28, 7:04 PM EDTSpecial Weather StatementGSPAvery26 min
May 28, 2:12 PM EDTSpecial Weather StatementGSPAnderson33 min
May 28, 2:44 PM EDTSpecial Weather StatementGSPGreenville31 min
May 28, 2:55 PM EDTSpecial Weather StatementGSPOconee, Pickens35 min
May 28, 2:58 PM EDTSpecial Weather StatementGSPLaurens32 min
May 28, 3:04 PM EDTSpecial Weather StatementGSPYork26 min
May 28, 3:30 PM EDTSpecial Weather StatementGSPGreenville30 min
May 28, 3:40 PM EDTSpecial Weather StatementGSPCherokee35 min
May 28, 4:06 PM EDTSpecial Weather StatementGSPCherokee24 min
May 28, 4:46 PM EDTSpecial Weather StatementGSPChester29 min
May 28, 6:03 PM EDTSpecial Weather StatementGSPAnderson27 min
May 28, 6:10 PM EDTSpecial Weather StatementGSPAbbeville35 min
May 28, 6:21 PM EDTSpecial Weather StatementGSPLaurens24 min
May 28, 7:31 PM EDTSpecial Weather StatementGSPCherokee29 min

Nearby

Special Weather Statements in South Carolina, 2021Every special weather statement in 2021

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.