Alert archive / Georgia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 263, NWS Greenville-Spartanburg, SC

October 31, 2019Jackson County, Macon County, Transylvania County, North Carolina; Oconee County, South Carolina; 4 counties in Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Oct 31, 2019, 1:56 PM EDT for Jackson County, Macon County, Transylvania County, North Carolina; Oconee County, South Carolina; 4 counties in Georgia. It was in force for 49 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: Oct 31, 2019, 1:56 PM EDT (17:56 UTC)
Expired: Oct 31, 2019, 2:45 PM EDT
In force: 49 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Franklin County, GA, Habersham County, GA, Rabun County, GA, Stephens County, GA, Jackson County, NC, Macon County, NC, Transylvania County, NC, Oconee County, SC

The radar

The Greer radar (KGSP), 93 km from the middle of the area, began a volume at 17:54 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, 5.9 hours before the alert went out and 202 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: 192 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 636 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 197 m²/s²
0-3 km storm-relative helicity: 231 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.1

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 Oct 31, 1:54 PM EDT, 2 minutes earlier.

Area forecast discussion, Oct 31, 1:54 PM EDT, 2 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, Oct 31, 5:15 AM EDT, 8 hours 41 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>

In the hours before

Local storm report, Oct 31, 10:40 AM EDT, 3 hours 16 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>

Local storm report, Oct 31, 10:43 AM EDT, 3 hours 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>

Local storm report, Oct 31, 10:44 AM EDT, 3 hours 12 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>

Local storm report, Oct 31, 10:47 AM EDT, 3 hours 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, Oct 31, 1:39 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, Oct 31, 1:50 PM EDT, 6 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
Oct 30, 8:54 PM EDT	Areal Flood Advisory	GSP	Transylvania	3 hr
Oct 30, 9:24 PM EDT	Areal Flood Advisory	GSP	Jackson, Macon, Transylvania	9 hr
Oct 30, 11:44 PM EDT	Areal Flood Advisory	GSP	Henderson, Transylvania	6 hr
Oct 30, 11:54 PM EDT	Special Weather Statement	GSP	Cleveland	36 min
Oct 30, 11:59 PM EDT	Areal Flood Advisory	GSP	Henderson, Polk, Rutherford	6 hr
Oct 31, 12:49 AM EDT	Special Weather Statement	GSP	Catawba, Iredell, Lincoln	26 min
Oct 31, 1:09 AM EDT	River Flood Warning	GSP	Henderson, Transylvania	61 hr
Oct 31, 4:06 AM EDT	Freeze Warning	GSP	Avery, Buncombe, Burke, Caldwell, Graham, Haywood and 9 more	30 hr
Oct 31, 4:06 AM EDT	Wind Advisory	GSP	Avery, Burke, Caldwell, McDowell, Mitchell, Yancey	28 hr
Oct 31, 6:21 AM EDT	Areal Flood Advisory	GSP	Henderson, Transylvania	23 hr
Oct 31, 7:31 AM EDT	River Flood Advisory	GSP	Buncombe, Henderson	48 hr
Oct 31, 9:17 AM EDT	Severe Thunderstorm Warning	GSP	Polk, Rutherford	28 min
Oct 31, 9:41 AM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Rutherford	34 min
Oct 31, 10:14 AM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba, Cleveland, Lincoln	12 min
Oct 31, 12:14 PM EDT	Areal Flood Advisory	GSP	Henderson, Polk	6 hr
Oct 31, 12:19 PM EDT	Areal Flood Advisory	GSP	Burke	116 min
Oct 31, 1:50 PM EDT	Special Weather Statement	GSP	Macon	25 min
Oct 31, 2:42 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Henderson, Transylvania	48 min
Oct 31, 3:12 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Henderson, McDowell, Mitchell, Yancey	48 min
Oct 31, 3:15 PM EDT	Severe Thunderstorm Warning	GSP	Polk	45 min
Oct 31, 3:17 PM EDT	Areal Flood Advisory	GSP	Jackson	118 min
Oct 31, 3:22 PM EDT	Areal Flood Advisory	GSP	Haywood	113 min
Oct 31, 3:33 PM EDT	Severe Thunderstorm Warning	GSP	Avery, Burke, Caldwell, McDowell	42 min
Oct 31, 3:58 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Polk, Rutherford	47 min
Oct 31, 4:04 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell, McDowell, Rutherford	41 min
Oct 31, 4:30 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston	45 min
Oct 31, 4:39 PM EDT	Special Weather Statement	GSP	Alexander, Catawba, Lincoln	36 min
Oct 31, 4:58 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Catawba, Gaston, Iredell, Lincoln, Mecklenburg and 1 more	47 min
Oct 31, 5:35 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Davie, Mecklenburg, Rowan	40 min
Oct 31, 5:53 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Rowan, Union	67 min
Oct 31, 7:03 PM EDT	Special Weather Statement	GSP	Union	27 min
Oct 31, 8:23 AM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens	37 min
Oct 31, 9:01 AM EDT	Special Weather Statement	GSP	Greenville	29 min
Oct 31, 10:36 AM EDT	Areal Flood Advisory	GSP	Greenville	12 hr
Oct 31, 10:48 AM EDT	Areal Flood Advisory	GSP	Greenville, Spartanburg	7 hr
Oct 31, 2:35 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Oconee, Pickens	40 min
Oct 31, 3:06 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenville, Greenwood, Laurens	39 min
Oct 31, 3:40 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenwood	50 min
Oct 31, 3:46 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Greenville, Laurens, Spartanburg, Union	44 min
Oct 31, 4:27 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood, Laurens	48 min
Oct 31, 5:39 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	36 min
Oct 31, 1:39 PM EDT	Special Weather Statement	GSP	Habersham, Rabun	51 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2019 Severe Thunderstorm Warnings in North Carolina, 2019 Severe Thunderstorm Warnings in South Carolina, 2019 Every severe thunderstorm warning in 2019

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.