Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 52, NWS Greenville-Spartanburg, SC

June 14, 2021Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 14, 2021, 3:53 PM EDT for Greenville County, South Carolina. It was in force for 26 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: Jun 14, 2021, 3:53 PM EDT (19:53 UTC)
Expired: Jun 14, 2021, 4:19 PM EDT
In force: 26 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Greenville County, SC

The radar

The Greer radar (KGSP), 22 km from the middle of the area, began a volume at 19:52 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, 7.9 hours before the alert went out and 251 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 740 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 1027 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

482 
WUUS52 KGSP 141953
SVRGSP
SCC045-142045-
/O.NEW.KGSP.SV.W.0052.210614T1953Z-210614T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
353 PM EDT Mon Jun 14 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Southeastern Greenville County in Upstate South Carolina...

* Until 445 PM EDT.

* At 353 PM EDT, a severe thunderstorm was located 8 miles south of
  Greenville Downtown, or near Donaldson Center, moving south at 5
  mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is expected. Expect wind 
           damage to trees and power lines.

* Locations impacted include...
  Mauldin, Simpsonville, Fountain Inn, Donaldson Center, Fork Shoals,
  Greenville Eastside and West Greenville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

Brief damaging winds will blow down trees and power lines over small
areas. A brief period of large hail is also possible. Seek shelter
inside an interior room.

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 the
specific location where it occurred.

&&

LAT...LON 3461 8239 3479 8240 3482 8228 3470 8219
      3468 8219 3465 8221
TIME...MOT...LOC 1953Z 344DEG 5KT 3474 8234 

HAIL...1.00IN
WIND...60MPH
 
$$

KRENTZ

1 follow-up statement

866 
WWUS52 KGSP 142019
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
419 PM EDT Mon Jun 14 2021

SCC045-142029-
/O.CAN.KGSP.SV.W.0052.000000T0000Z-210614T2045Z/
Greenville SC-
419 PM EDT Mon Jun 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GREENVILLE COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.

LAT...LON 3461 8239 3479 8240 3482 8228 3470 8219
      3468 8219 3465 8221
TIME...MOT...LOC 2012Z 344DEG 5KT 3470 8233 

$$

KRENTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 2:20 PM EDT	Special Weather Statement	GSP	Greenville	25 min
Jun 14, 2:22 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	38 min
Jun 14, 2:45 PM EDT	Special Weather Statement	GSP	Pickens	30 min
Jun 14, 2:52 PM EDT	Special Weather Statement	GSP	Oconee	23 min
Jun 14, 3:00 PM EDT	Special Weather Statement	GSP	Greenville	30 min
Jun 14, 3:14 PM EDT	Special Weather Statement	GSP	Oconee	31 min
Jun 14, 3:31 PM EDT	Severe Thunderstorm Warning	GSP	Pickens	44 min
Jun 14, 3:34 PM EDT	Special Weather Statement	GSP	Greenville	41 min
Jun 14, 3:48 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Pickens	27 min
Jun 14, 4:00 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	45 min
Jun 14, 4:04 PM EDT	Severe Thunderstorm Warning	GSP	York	41 min
Jun 14, 4:10 PM EDT	Special Weather Statement	GSP	Cherokee	50 min
Jun 14, 4:14 PM EDT	Special Weather Statement	GSP	Anderson	31 min
Jun 14, 4:44 PM EDT	Special Weather Statement	GSP	York	46 min
Jun 14, 4:45 PM EDT	Special Weather Statement	GSP	Cherokee	30 min
Jun 14, 4:57 PM EDT	Special Weather Statement	GSP	Anderson	33 min
Jun 14, 5:00 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee	27 min
Jun 14, 5:22 PM EDT	Special Weather Statement	GSP	York	53 min
Jun 14, 6:32 PM EDT	Special Weather Statement	GSP	Chester	28 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2021 Every severe thunderstorm warning 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.