Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

June 14, 2021Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jun 14, 2021, 2:20 PM EDT for Greenville County, South Carolina. It was in force for 25 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, 2:20 PM EDT (18:20 UTC)
Expired
Jun 14, 2021, 2:45 PM EDT
In force
25 min
Issued by
NWS Greenville-Spartanburg, SC

County Greenville County, SC

The radar

The Greer radar (KGSP), 25 km from the middle of the area, began a volume at 18:21 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, 6.3 hours before the alert went out and 259 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 2021-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 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 2021-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
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.

<!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>

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 14, 1:59 PM EDT, 21 minutes earlier.

Area forecast discussion, Jun 14, 1:59 PM EDT, 21 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>
Hazardous weather outlook, Jun 14, 3:06 AM EDT, 11 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
306 AM EDT Mon Jun 14 2021

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-150715-
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-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
306 AM EDT Mon Jun 14 2021

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms will develop across the western Carolinas
and northeast Georgia this afternoon and evening. The thunderstorms
will develop earliest along and near the Blue Ridge Mountains by
midday, then move out over the adjacent foothills, and finally
strengthen over the Piedmont by late day. Cloud-to-ground lightning,
torrential rainfall, and very gusty winds will be possible with any
of these thunderstorms. A few storms will become severe, with
damaging wind gusts likely, especially over the western Piedmont of
North Carolina and the eastern Upstate of South Carolina late this
afternoon.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

HG

In the hours before

Special weather statement, Jun 14, 1:33 PM EDT, 47 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, Jun 14, 2:07 PM EDT, 13 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, Jun 14, 2:10 PM EDT, 10 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
210 PM EDT Mon Jun 14 2021

NCZ068-141845-
Cleveland NC-
210 PM EDT Mon Jun 14 2021

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN CLEVELAND COUNTY
UNTIL 245 PM EDT...

At 210 PM EDT, Doppler radar was tracking a strong thunderstorm 15
miles south of Morganton, or near Casar, moving southwest at 10 mph.

Locations to be impacted include...
Belwood, Casar and Polkville.

Wind gusts up to 40 mph, half inch hail and very heavy rainfall rates
up to 2 inches per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall 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 may also rise rapidly. Seek
higher ground if threatened by flood waters.

&&

LAT...LON 3556 8166 3557 8161 3557 8160 3556 8157
      3556 8156 3557 8154 3555 8151 3552 8151
      3550 8150 3543 8155 3543 8170 3558 8169
TIME...MOT...LOC 1810Z 024DEG 7KT 3553 8160

KRENTZ
Special weather statement, Jun 14, 2:20 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
220 PM EDT Mon Jun 14 2021

SCZ003-006-141845-
Greenville Mountains SC-Greater Greenville SC-
220 PM EDT Mon Jun 14 2021

...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL GREENVILLE COUNTY
UNTIL 245 PM EDT...

At 220 PM EDT, Doppler radar was tracking a strong thunderstorm 11
miles north of Greenville Downtown, or near Travelers Rest, moving
south at 10 mph.

Locations to be impacted include...
Travelers Rest, Slater-Marietta, Paris Mountain State Park,
Tigerville and Furman University.

Wind gusts up to 40 mph, half inch hail and very heavy rainfall rates
up to 2 inches per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall 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 may also rise rapidly. Seek
higher ground if threatened by flood waters.

&&

LAT...LON 3494 8252 3496 8253 3508 8251 3509 8236
      3494 8231 3492 8252
TIME...MOT...LOC 1820Z 356DEG 9KT 3502 8244

KRENTZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 8:00 PM EDTSpecial Weather StatementGSPTransylvania30 min
Jun 13, 11:30 PM EDTSpecial Weather StatementGSPMadison45 min
Jun 14, 1:30 AM EDTSpecial Weather StatementGSPCleveland30 min
Jun 14, 2:07 PM EDTSpecial Weather StatementGSPTransylvania23 min
Jun 14, 2:10 PM EDTSpecial Weather StatementGSPCleveland35 min
Jun 14, 3:57 PM EDTSpecial Weather StatementGSPGaston33 min
Jun 14, 4:00 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford45 min
Jun 14, 4:04 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Mecklenburg41 min
Jun 14, 4:15 PM EDTSpecial Weather StatementGSPLincoln45 min
Jun 14, 4:54 PM EDTSpecial Weather StatementGSPDavie36 min
Jun 14, 5:25 PM EDTSpecial Weather StatementGSPDavie35 min
Jun 14, 5:55 PM EDTSpecial Weather StatementGSPRowan35 min
Jun 14, 6:29 PM EDTSpecial Weather StatementGSPRowan31 min
Jun 14, 7:13 PM EDTSpecial Weather StatementGSPCatawba32 min
Jun 14, 7:45 PM EDTSpecial Weather StatementGSPCatawba30 min
Jun 14, 2:22 PM EDTSevere Thunderstorm WarningGSPGreenville38 min
Jun 14, 2:45 PM EDTSpecial Weather StatementGSPPickens30 min
Jun 14, 2:52 PM EDTSpecial Weather StatementGSPOconee23 min
Jun 14, 3:00 PM EDTSpecial Weather StatementGSPGreenville30 min
Jun 14, 3:14 PM EDTSpecial Weather StatementGSPOconee31 min
Jun 14, 3:31 PM EDTSevere Thunderstorm WarningGSPPickens44 min
Jun 14, 3:34 PM EDTSpecial Weather StatementGSPGreenville41 min
Jun 14, 3:48 PM EDTSevere Thunderstorm WarningGSPAnderson, Pickens27 min
Jun 14, 3:53 PM EDTSevere Thunderstorm WarningGSPGreenville26 min
Jun 14, 4:10 PM EDTSpecial Weather StatementGSPCherokee50 min
Jun 14, 4:14 PM EDTSpecial Weather StatementGSPAnderson31 min
Jun 14, 4:44 PM EDTSpecial Weather StatementGSPYork46 min
Jun 14, 4:45 PM EDTSpecial Weather StatementGSPCherokee30 min
Jun 14, 4:57 PM EDTSpecial Weather StatementGSPAnderson33 min
Jun 14, 5:00 PM EDTSevere Thunderstorm WarningGSPCherokee27 min
Jun 14, 5:22 PM EDTSpecial Weather StatementGSPYork53 min
Jun 14, 6:32 PM EDTSpecial Weather StatementGSPChester28 min
Jun 14, 1:33 PM EDTSpecial Weather StatementGSPStephens27 min
Jun 14, 2:29 PM EDTSpecial Weather StatementGSPStephens31 min
Jun 14, 3:06 PM EDTSpecial Weather StatementGSPFranklin24 min
Jun 14, 3:41 PM EDTSevere Thunderstorm WarningGSPFranklin34 min
Jun 14, 4:03 PM EDTSpecial Weather StatementGSPStephens27 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.