Alert archive / North Carolina / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 170, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 14, 2015, 10:34 AM EDT for 4 counties in North Carolina. It was in force for 56 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
- Jul 14, 2015, 10:34 AM EDT (14:34 UTC)
- Expired
- Jul 14, 2015, 11:30 AM EDT
- In force
- 56 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Graham County, NC, Jackson County, NC, Macon County, NC, Swain County, NC
The radar
The Knoxville radar (KMRX), 95 km from the middle of the area, began a volume at 14:35 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, 2.6 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.
- Mixed-layer CAPE
- 1704 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 988 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- -39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.1
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 Jul 14, 3:34 AM EDT, 7 hours earlier.
Area forecast discussion, Jul 14, 3:34 AM EDT, 7 hours 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, Jul 14, 5:02 AM EDT, 5 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 502 AM EDT TUE JUL 14 2015 NCZ033-048>053-058-059-062>065-501-503-505-150915- AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM- NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON- CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS- 502 AM EDT TUE JUL 14 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MOUNTAINS OF NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. A LINE OF THUNDERSTORMS WILL REACH THE NORTH CAROLINA MOUNTAINS AROUND DAYBREAK AND WILL PUSH SOUTHEAST ACROSS THE MOUNTAINS THROUGH MID MORNING. FREQUENT CLOUD-TO-GROUND LIGHTNING...TORRENTIAL DOWNPOURS...AND GUSTY WINDS WILL BE THE MAIN THREATS. SOME FLOODING OF POOR DRAINAGE AREAS WILL BE POSSIBLE. AFTER THE FIRST WAVE OF STORMS MOVES THROUGH...THE ATMOSPHERE IS EXPECTED TO DESTABILIZE AGAIN IN THE AFTERNOON. ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS IS POSSIBLE LATER IN THE AFTERNOON AND INTO THE EVENING. SOME OF THE STORMS MAY CONTAIN DAMAGING WIND GUSTS AND LARGE HAIL. A THIRD ROUND OF THUNDERSTORMS IS ALSO POSSIBLE LATE TONIGHT AND EARLY WEDNESDAY MORNING AS A COLD FRONT MOVES ACROSS THE REGION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE. NCZ035>037-056-057-068>072-082-502-504-506>510-SCZ008-009-014-150915- ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-GASTON- MECKLENBURG-CABARRUS-UNION-GREATER CALDWELL-GREATER BURKE- EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-GREATER RUTHERFORD- POLK MOUNTAINS-EASTERN POLK-CHEROKEE-YORK-CHESTER- 502 AM EDT TUE JUL 14 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE FOOTHILLS AND WESTERN PIEDMONT NORTH CAROLINA...INCLUDING THE CHARLOTTE METRO AREA. .DAY ONE...TODAY AND TONIGHT. A BROKEN BAND OF THUNDERSTORMS WILL MOVE ACROSS THE MOUNTAINS OF NORTH CAROLINA EARLY THIS MORNING AND MAY MOVE OUT ACROSS THE FOOTHILLS AND WESTERN PIEDMONT OF NORTH CAROLINA DURING THE MIDDLE PART OF THE MORNING. THE TIMING OF THIS BAND OF STORMS DOES NOT FAVOR MUCH IN THE WAY OF STRENGTHENING EAST OF THE BLUE RIDGE...AS THE ATMOSPHERE WILL NOT BE ABLE TO WARM UP AND DESTABILIZE BEFORE IT MOVES THROUGH. AT THIS POINT...THE MAIN THREATS APPEAR TO BE CLOUD-TO-GROUND LIGHTNING AND HEAVY RAIN. AFTER THE MORNING ACTIVITY MOVES OFF TO THE EAST...IT MAY TAKE SEVERAL HOURS FOR THE ATMOSPHERE TO DESTABILIZE AGAIN OWING TO LINGERING CLOUD COVER. IF THE CLOUDS THIN EARLY ENOUGH IN THE DAY...BY MID AFTERNOON...WE MAY DESTABILIZE ENOUGH TO SUPPORT REDEVELOPMENT OF STRONG TO SEVERE THUNDERSTORMS OVER THE AREA EAST OF THE MOUNTAINS THROUGH THE LATE AFTERNOON AND EVENING HOURS. DAMAGING WIND GUSTS AND LARGE HAIL WOULD BE THE MAIN THREATS. A THIRD ROUND OF STORMS WILL BE POSSIBLE LATE TONIGHT AND EARLY WEDNESDAY AS A COLD FRONT PUSHES ACROSS THE REGION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE. GAZ010-017-018-026-028-029-SCZ001>007-010>013-019-150915- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-ANDERSON-ABBEVILLE- LAURENS-UNION-GREENWOOD- 502 AM EDT TUE JUL 14 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. A FEW THUNDERSTORMS MAY DEVELOP AND MOVE ACROSS NORTHEAST GEORGIA AND THE UPSTATE OF SOUTH CAROLINA THIS MORNING...WITH GUSTY WINDS...BRIEF HEAVY DOWNPOURS...AND FREQUENT LIGHTNING. THE ATMOSPHERE IS EXPECTED TO BECOME MODERATELY UNSTABLE BY THIS AFTERNOON ACROSS THE AREA ALONG AND WEST OF INTERSTATE 26...WHICH WILL SUPPORT THE DEVELOPMENT OF STRONG TO SEVERE THUNDERSTORMS THROUGH THE AFTERNOON AND INTO THE EVENING. DAMAGING WIND GUSTS AND LARGE HAIL WILL BE POSSIBLE. IN ADDITION...THERE WILL BE ENOUGH WIND SHEAR IN THE LOWER PART OF THE ATMOSPHERE SUCH THAT A BRIEF TORNADO CANNOT BE RULED OUT. ANOTHER ROUND OF THUNDERSTORMS WILL BE POSSIBLE LATE TONIGHT AND EARLY WEDNESDAY MORNING AS A COLD FRONT PUSHES ACROSS THE REGION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.
In the hours before
Special weather statement, Jul 14, 7:52 AM EDT, 2 hours 42 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, Jul 14, 8:30 AM EDT, 2 hours 4 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, Jul 14, 8:33 AM EDT, 2 hours 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>Special weather statement, Jul 14, 9:30 AM EDT, 1 hour 4 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, Jul 14, 10:00 AM EDT, 34 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, Jul 14, 10:11 AM EDT, 23 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 |
|---|---|---|---|---|
| Jul 13, 8:06 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Burke, Caldwell, Catawba, Iredell, McDowell and 1 more | 39 min |
| Jul 13, 8:16 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe, Henderson, McDowell, Polk, Rutherford, Transylvania | 21 min |
| Jul 13, 8:19 PM EDT | Special Weather Statement | GSP | Cabarrus | 26 min |
| Jul 13, 8:27 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Iredell, Mecklenburg, Rowan | 48 min |
| Jul 13, 8:32 PM EDT | Special Weather Statement | GSP | Catawba, Cleveland, Davie, Iredell, Lincoln | 28 min |
| Jul 13, 8:55 PM EDT | Special Weather Statement | GSP | Rowan | 65 min |
| Jul 13, 8:58 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Rowan | 47 min |
| Jul 13, 9:03 PM EDT | Areal Flood Advisory | GSP | Cabarrus, Mecklenburg | 117 min |
| Jul 13, 9:24 PM EDT | Severe Thunderstorm Warning | GSP | Union | 61 min |
| Jul 13, 9:50 PM EDT | Areal Flood Advisory | GSP | Union | 3 hr |
| Jul 14, 6:36 AM EDT | Special Weather Statement | GSP | Avery, Madison, Mitchell, Yancey | 54 min |
| Jul 14, 7:27 AM EDT | Special Weather Statement | GSP | Buncombe, Haywood, Henderson, McDowell, Polk, Rutherford | 63 min |
| Jul 14, 7:47 AM EDT | Severe Thunderstorm Warning | GSP | Buncombe, Haywood, Henderson, McDowell, Polk, Rutherford and 1 more | 58 min |
| Jul 14, 7:52 AM EDT | Special Weather Statement | GSP | Alexander, Burke, Catawba, Cleveland, Iredell, Lincoln | 68 min |
| Jul 14, 8:22 AM EDT | Areal Flood Advisory | GSP | Avery, Buncombe, Haywood, Madison, Mitchell, Yancey | 3 hr |
| Jul 14, 8:33 AM EDT | Special Weather Statement | GSP | Avery, Buncombe, Haywood, Madison, Mitchell, Yancey | 42 min |
| Jul 14, 9:30 AM EDT | Special Weather Statement | GSP | Swain | 30 min |
| Jul 14, 10:00 AM EDT | Special Weather Statement | GSP | Jackson | 30 min |
| Jul 14, 10:11 AM EDT | Special Weather Statement | GSP | Graham | 34 min |
| Jul 14, 11:11 AM EDT | Areal Flood Advisory | GSP | Madison | 2 hr |
| Jul 14, 11:30 AM EDT | Special Weather Statement | GSP | Graham | 15 min |
| Jul 14, 11:46 AM EDT | Special Weather Statement | GSP | Macon | 29 min |
| Jul 14, 4:20 PM EDT | Special Weather Statement | GSP | Graham, Haywood, Swain | 55 min |
| Jul 14, 4:45 PM EDT | Severe Thunderstorm Warning | GSP | Graham, Haywood, Jackson, Macon, Swain | 75 min |
| Jul 14, 5:58 PM EDT | Severe Thunderstorm Warning | GSP | Jackson, Macon | 77 min |
| Jul 13, 8:08 PM EDT | Severe Thunderstorm Warning | GSP | Chester, York | 52 min |
| Jul 13, 8:44 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg, Union, York | 46 min |
| Jul 13, 9:11 PM EDT | Special Weather Statement | GSP | York | 34 min |
| Jul 14, 8:30 AM EDT | Special Weather Statement | GSP | Cherokee, Greenville, Spartanburg, Union, York | 60 min |
| Jul 14, 12:52 PM EDT | Special Weather Statement | GSP | Oconee | 38 min |
| Jul 14, 1:28 PM EDT | Special Weather Statement | GSP | Abbeville | 32 min |
| Jul 14, 6:48 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee, Pickens | 72 min |
| Jul 14, 7:47 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson | 43 min |
| Jul 14, 1:36 PM EDT | Severe Thunderstorm Warning | GSP | Elbert, Franklin, Hart | 39 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2015Every severe thunderstorm warning in 2015
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.