Alert archive / South Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 238, NWS Greenville-Spartanburg, SC

August 6, 2023Abbeville County, Greenwood County, Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 6, 2023, 3:03 PM EDT for Abbeville County, Greenwood County, Laurens County, South Carolina. It was in force for 42 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 6, 2023, 3:03 PM EDT (19:03 UTC)
Expired: Aug 6, 2023, 3:45 PM EDT
In force: 42 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Abbeville County, SC, Greenwood County, SC, Laurens County, SC

The radar

The Greer radar (KGSP), 66 km from the middle of the area, began a volume at 19:04 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.1 hours before the alert went out and 236 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: 1698 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 936 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 78 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 6, 3:02 PM EDT, 1 minute earlier.

Area forecast discussion, Aug 6, 3:02 PM EDT, 1 minute before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Aug 6, 4:13 AM EDT, 10 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
413 AM EDT Sun Aug 6 2023

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ008>014-019-101>109-070815-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander-
Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba-
Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
413 AM EDT Sun Aug 6 2023

This Hazardous Weather Outlook is for northeast Georgia, western
North Carolina and the Upstate of South Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms will develop across the forecast area this
afternoon and early evening. A few may become strong to severe. The
main potential hazards with any storms that become severe are
damaging winds and large hail. Localized flash flooding may occur
with slow moving storms as well as storms that repeatedly track over
the same location. Cloud-to-ground lightning, gusty winds, and heavy
downpours can be expected with any thunderstorms that develop.
Additionally, heat indices may reach the lower 100s across the
western South Carolina Upstate and portions of northeast Georgia this
afternoon.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Severe storms are likely Monday afternoon and evening across the
forecast area. Damaging winds are the main threat, but large hail
and isolated tornadoes will also be possible. Cloud-to-ground
lightning, locally heavy rainfall, and gusty winds are expected with
any thunderstorms that develop. Additionally, heat indices may reach
the lower 100s east of the mountains Monday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

AR

In the hours before

Special weather statement, Aug 6, 2:09 PM EDT, 54 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
209 PM EDT Sun Aug 6 2023

SCZ012-013-061845-
Laurens SC-Union SC-
209 PM EDT Sun Aug 6 2023

...A strong thunderstorm will impact portions of central Laurens and
west central Union Counties through 245 PM EDT...

At 208 PM EDT, Doppler radar was tracking a strong thunderstorm near
Laurens, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Laurens, Clinton, Joanna, Gray Court, Cross Keys, Sedalia, Ora and
Kinards.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3444 8213 3462 8211 3463 8193 3460 8191
      3459 8189 3460 8188 3458 8186 3460 8185
      3463 8184 3464 8171 3443 8173 3438 8178
TIME...MOT...LOC 1808Z 275DEG 19KT 3453 8204

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

KRENTZ

Special weather statement, Aug 6, 2:17 PM EDT, 46 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
217 PM EDT Sun Aug 6 2023

NCZ056-069-061845-
Lincoln NC-Catawba NC-
217 PM EDT Sun Aug 6 2023

...A strong thunderstorm will impact portions of Catawba and northern
Lincoln Counties through 245 PM EDT...

At 216 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles south of Hickory, or 4 miles south of Mountain View, moving
east at 20 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Newton, Hickory, Conover, Maiden, Claremont, Catawba, Mountain View,
Longview, Boger City and Bandys.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3571 8107 3571 8104 3546 8107 3554 8147
      3566 8146 3572 8140 3573 8107
TIME...MOT...LOC 1816Z 275DEG 19KT 3562 8137

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

KRENTZ

Special weather statement, Aug 6, 2:35 PM EDT, 28 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Aug 6, 2:46 PM EDT, 17 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Aug 6, 2:54 PM EDT, 9 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Aug 6, 2:56 PM EDT, 7 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 1:52 PM EDT	Special Weather Statement	GSP	Catawba	23 min
Aug 6, 2:06 PM EDT	Special Weather Statement	GSP	Cleveland	24 min
Aug 6, 2:17 PM EDT	Special Weather Statement	GSP	Catawba	28 min
Aug 6, 2:35 PM EDT	Special Weather Statement	GSP	Cleveland	25 min
Aug 6, 2:42 PM EDT	Severe Thunderstorm Warning	GSP	Catawba, Cleveland, Gaston, Lincoln	48 min
Aug 6, 3:17 PM EDT	Heat Advisory	GSP	Cabarrus, Mecklenburg, Union	27 hr
Aug 6, 3:30 PM EDT	Special Weather Statement	GSP	Iredell	30 min
Aug 6, 3:32 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Mecklenburg	43 min
Aug 6, 3:50 PM EDT	Special Weather Statement	GSP	Davie	25 min
Aug 6, 4:01 PM EDT	Special Weather Statement	GSP	Cabarrus, Rowan	29 min
Aug 6, 4:06 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Rowan	54 min
Aug 6, 1:08 PM EDT	Special Weather Statement	GSP	Greenville	37 min
Aug 6, 2:09 PM EDT	Special Weather Statement	GSP	Laurens	36 min
Aug 6, 2:46 PM EDT	Special Weather Statement	GSP	Union	29 min
Aug 6, 2:51 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, York	39 min
Aug 6, 2:54 PM EDT	Special Weather Statement	GSP	Abbeville	51 min
Aug 6, 3:10 PM EDT	Special Weather Statement	GSP	Laurens	35 min
Aug 6, 3:26 PM EDT	Special Weather Statement	GSP	Spartanburg	34 min
Aug 6, 3:39 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Laurens, Spartanburg, Union	51 min
Aug 6, 3:52 PM EDT	Special Weather Statement	GSP	Greenwood	23 min
Aug 6, 2:56 PM EDT	Special Weather Statement	GSP	Elbert	64 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2023 Every severe thunderstorm warning in 2023

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.