Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 340, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 27, 2023, 2:55 PM EDT for Haywood County, Jackson County, Transylvania County, North Carolina. It was in force for 50 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 27, 2023, 2:55 PM EDT (18:55 UTC)
- Expired
- Aug 27, 2023, 3:45 PM EDT
- In force
- 50 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Haywood County, NC, Jackson County, NC, Transylvania County, NC
The radar
The Greer radar (KGSP), 86 km from the middle of the area, began a volume at 18:55 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, 6.9 hours before the alert went out and 261 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.
- Mixed-layer CAPE
- 1899 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1108 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 27, 1:48 PM EDT, 1 hour 7 minutes earlier.
Area forecast discussion, Aug 27, 1:48 PM EDT, 1 hour 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>Hazardous weather outlook, Aug 27, 4:26 AM EDT, 10 hours 29 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 426 AM EDT Sun Aug 27 2023 GAZ010-017-NCZ033-035>037-048>053-056>059-062>065-068>072-082- 501>510-SCZ008-009-012>014-101>103-106>109-280830- Rabun-Habersham-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-Laurens- Union SC-Chester-Oconee Mountains-Pickens Mountains- Greenville Mountains-Central Greenville-Southern Greenville- Northern Spartanburg-Southern Spartanburg- 426 AM EDT Sun Aug 27 2023 This Hazardous Weather Outlook is for northeast Georgia, Piedmont North Carolina, western North Carolina, and Upstate South Carolina. .DAY ONE...Today and tonight. Numerous showers and thunderstorms will develop across the region today, forming first over the mountains by the early to middle part of the afternoon, then filling in across the foothills and Piedmont through the evening hours. These thunderstorms will produce frequent cloud-to-ground lightning strikes, gusty winds, and torrential rainfall. Isolated flooding of low-lying and poor drainage areas will be possible. The strongest storms may produce damaging wind gusts and hail as large as quarters. Scattered thunderstorms may linger through the overnight hours into early Monday morning. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Showers and thunderstorms will be widespread on Monday and Tuesday. The flooding threat will steadily build across the region during this period and torrential rainfall with any of these storms could quickly produce flash flooding. Scattered strong to severe thunderstorms will be possible mainly on Monday, with damaging wind gusts the primary threat. In addition, a tropical cyclone is expected to strengthen in the eastern Gulf of Mexico and move northward toward the Florida Gulf Coast on Tuesday. Uncertainty regarding the eventual track is moderate to high, but gusty winds and heavy rainfall from this system could affect the western Carolinas and northeast Georgia Wednesday into Thursday. .SPOTTER INFORMATION STATEMENT... Spotters are asked to relay any reports of severe weather or flooding to the National Weather Service. GAZ018-026-028-029-SCZ010-011-019-104-105-280830- Stephens-Franklin-Hart-Elbert-Anderson-Abbeville-Greenwood- Greater Oconee-Greater Pickens- 426 AM EDT Sun Aug 27 2023 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for parts of northeast Georgia and the western Upstate of South Carolina. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Numerous showers and thunderstorms will develop across the region today, especially from late afternoon through the evening hours. These thunderstorms will produce frequent cloud-to-ground lightning strikes, gusty winds, and torrential rainfall. Isolated flooding of low-lying and poor drainage areas will be possible. The strongest storms may produce damaging wind gusts and hail as large as quarters. Scattered thunderstorms may linger through the overnight hours into early Monday morning. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Showers and thunderstorms will be widespread on Monday and Tuesday. The flooding threat will steadily build across the region during this period and torrential rainfall with any of these storms could quickly produce flash flooding. Scattered strong to severe thunderstorms will be possible mainly on Monday, with damaging wind gusts the primary threat. In addition, a tropical cyclone is expected to strengthen in the eastern Gulf of Mexico and move northward toward the Florida Gulf Coast on Tuesday. Uncertainty regarding the eventual track is moderate to high, but gusty winds and heavy rainfall from this system could affect the western Carolinas and northeast Georgia Wednesday into Thursday. .SPOTTER INFORMATION STATEMENT... Spotters are asked to relay any reports of severe weather or flooding to the National Weather Service. HG
In the hours before
Local storm report, Aug 27, 12:35 PM EDT, 2 hours 20 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 27, 1:31 PM EDT, 1 hour 24 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 27, 1:37 PM EDT, 1 hour 18 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 27, 2:26 PM EDT, 29 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 27, 2:28 PM EDT, 27 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 27, 2:34 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>The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 8:26 PM EDT | Special Weather Statement | GSP | Catawba | 34 min |
| Aug 26, 8:28 PM EDT | Special Weather Statement | GSP | Davie | 32 min |
| Aug 26, 8:39 PM EDT | Severe Thunderstorm Warning | GSP | Davie | 32 min |
| Aug 26, 8:40 PM EDT | Severe Thunderstorm Warning | GSP | Catawba, Iredell | 50 min |
| Aug 26, 9:27 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Iredell, Mecklenburg, Rowan | 48 min |
| Aug 26, 9:38 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Catawba, Gaston, Iredell, Lincoln, Mecklenburg | 52 min |
| Aug 26, 10:23 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Gaston, Mecklenburg | 52 min |
| Aug 26, 10:31 PM EDT | Areal Flood Advisory | GSP | Cabarrus, Iredell, Mecklenburg, Rowan | 3 hr |
| Aug 26, 10:53 PM EDT | Special Weather Statement | GSP | Union | 22 min |
| Aug 26, 11:18 PM EDT | Special Weather Statement | GSP | Union | 12 min |
| Aug 26, 11:46 PM EDT | Special Weather Statement | GSP | Union | 29 min |
| Aug 27, 1:31 PM EDT | Special Weather Statement | GSP | Transylvania | 29 min |
| Aug 27, 1:37 PM EDT | Special Weather Statement | GSP | Jackson | 23 min |
| Aug 27, 2:26 PM EDT | Special Weather Statement | GSP | Mitchell | 34 min |
| Aug 27, 2:28 PM EDT | Special Weather Statement | GSP | Caldwell | 32 min |
| Aug 27, 2:34 PM EDT | Special Weather Statement | GSP | Polk | 26 min |
| Aug 27, 2:40 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe, Henderson, McDowell, Rutherford | 50 min |
| Aug 27, 3:04 PM EDT | Special Weather Statement | GSP | Caldwell | 26 min |
| Aug 27, 3:09 PM EDT | Special Weather Statement | GSP | Avery, Mitchell | 36 min |
| Aug 27, 3:10 PM EDT | Special Weather Statement | GSP | Yancey | 35 min |
| Aug 27, 3:28 PM EDT | Special Weather Statement | GSP | McDowell | 32 min |
| Aug 27, 3:34 PM EDT | Special Weather Statement | GSP | Alexander | 26 min |
| Aug 27, 3:40 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Caldwell, Catawba | 50 min |
| Aug 27, 4:06 PM EDT | Special Weather Statement | GSP | Burke, McDowell | 24 min |
| Aug 27, 4:29 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Catawba, Iredell | 46 min |
| Aug 27, 4:32 PM EDT | Special Weather Statement | GSP | Burke | 28 min |
| Aug 27, 4:44 PM EDT | Special Weather Statement | GSP | Yancey | 31 min |
| Aug 27, 4:59 PM EDT | Special Weather Statement | GSP | Cleveland | 31 min |
| Aug 27, 5:15 PM EDT | Special Weather Statement | GSP | Iredell | 30 min |
| Aug 27, 5:16 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Lincoln, Rutherford | 44 min |
| Aug 27, 6:00 PM EDT | Special Weather Statement | GSP | Madison | 30 min |
| Aug 27, 6:11 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Mecklenburg, Union | 49 min |
| Aug 27, 6:16 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg, Union | 44 min |
| Aug 27, 7:01 PM EDT | Areal Flood Advisory | GSP | Mecklenburg | 3 hr |
| Aug 26, 11:24 PM EDT | Special Weather Statement | GSP | Cherokee | 36 min |
| Aug 27, 3:51 AM EDT | Heat Advisory | GSP | Abbeville, Anderson, Greenwood, Oconee, Pickens | 15 hr |
| Aug 27, 3:42 PM EDT | Special Weather Statement | GSP | Oconee | 33 min |
| Aug 27, 5:52 PM EDT | Special Weather Statement | GSP | Abbeville | 23 min |
| Aug 27, 6:18 PM EDT | Special Weather Statement | GSP | Greenwood | 27 min |
| Aug 27, 6:23 PM EDT | Special Weather Statement | GSP | Spartanburg | 37 min |
| Aug 27, 6:47 PM EDT | Special Weather Statement | GSP | Laurens | 28 min |
| Aug 27, 4:37 PM EDT | Special Weather Statement | GSP | Stephens | 38 min |
| Aug 27, 5:10 PM EDT | Special Weather Statement | GSP | Franklin | 35 min |
| Aug 27, 5:32 PM EDT | Severe Thunderstorm Warning | GSP | Elbert, Franklin, Hart | 43 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2023Every 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.