Alert archive / Tennessee / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 85, NWS Memphis, TN

June 21, 20197 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jun 21, 2019, 7:30 PM CDT for 7 counties in Tennessee. It was in force for 30 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: Jun 21, 2019, 7:30 PM CDT (00:30 UTC)
Expired: Jun 21, 2019, 8:00 PM CDT
In force: 30 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Benton County, TN, Carroll County, TN, Chester County, TN, Decatur County, TN, Hardin County, TN, Henderson County, TN, McNairy County, TN

The radar

The Memphis radar (KNQA), 141 km from the middle of the area, began a volume at 00:31 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 21, 3:19 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 21, 5:47 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.5 hours before the alert went out and 168 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: 2148 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1370 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 379 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 21.0

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 6:54 PM CDT, 36 minutes earlier.

Area forecast discussion, Jun 21, 6:54 PM CDT, 36 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 21, 5:56 PM CDT, 1 hour 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>

In the hours before

Special weather statement, Jun 21, 6:50 PM CDT, 40 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 21, 7:05 PM CDT, 25 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 21, 7:08 PM CDT, 22 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 21, 7:11 PM CDT, 19 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, Jun 21, 7:14 PM CDT, 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, Jun 21, 7:30 PM CDT, 0 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 Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 8:09 PM CDT	Special Weather Statement	MEG	DeSoto	36 min
Jun 22, 12:17 AM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw	43 min
Jun 22, 12:36 AM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Yalobusha	90 min
Jun 22, 1:00 AM CDT	Special Weather Statement	MEG	Chickasaw	45 min
Jun 22, 4:29 AM CDT	Heat Advisory	MEG	Coahoma, Quitman, Tallahatchie, Tunica	15 hr
Jun 22, 11:48 AM CDT	River Flood Warning	MEG	DeSoto	16 days
Jun 22, 12:35 PM CDT	Special Weather Statement	MEG	Prentiss	25 min
Jun 22, 1:41 PM CDT	Special Weather Statement	MEG	Marshall	34 min
Jun 22, 2:09 PM CDT	Special Weather Statement	MEG	Union	36 min
Jun 22, 2:50 PM CDT	Special Weather Statement	MEG	Lee, Pontotoc, Union	25 min
Jun 22, 3:12 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc	33 min
Jun 22, 3:43 PM CDT	Special Weather Statement	MEG	Monroe	47 min
Jun 22, 3:59 PM CDT	Special Weather Statement	MEG	Union	46 min
Jun 22, 4:17 PM CDT	Special Weather Statement	MEG	Marshall	28 min
Jun 22, 4:43 PM CDT	Special Weather Statement	MEG	Monroe	47 min
Jun 22, 4:48 PM CDT	Areal Flood Advisory	MEG	Lafayette, Marshall	117 min
Jun 22, 4:50 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Tippah	40 min
Jun 22, 4:52 PM CDT	Special Weather Statement	MEG	Lafayette	23 min
Jun 22, 5:01 PM CDT	Special Weather Statement	MEG	Tate	29 min
Jun 22, 5:07 PM CDT	Special Weather Statement	MEG	Tishomingo	38 min
Jun 22, 5:09 PM CDT	Flash Flood Warning	MEG	Lafayette	2 hr
Jun 22, 5:11 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, Pontotoc, Union	34 min
Jun 22, 5:45 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Pontotoc, Union	26 min
Jun 22, 5:49 PM CDT	Special Weather Statement	MEG	Alcorn	41 min
Jun 22, 6:17 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Tishomingo	43 min
Jun 21, 7:05 PM CDT	Special Weather Statement	MEG	Fayette, Haywood, Shelby, Tipton	40 min
Jun 21, 7:08 PM CDT	Special Weather Statement	MEG	Chester, Decatur, Henderson, Madison	37 min
Jun 21, 7:11 PM CDT	Special Weather Statement	MEG	Lauderdale	34 min
Jun 21, 7:22 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale, Shelby, Tipton	17 min
Jun 21, 7:48 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardeman, McNairy	42 min
Jun 21, 8:07 PM CDT	Special Weather Statement	MEG	Shelby	23 min
Jun 21, 8:12 PM CDT	Special Weather Statement	MEG	Hardin	33 min
Jun 21, 8:28 PM CDT	Special Weather Statement	MEG	Fayette	32 min
Jun 21, 8:31 PM CDT	Special Weather Statement	MEG	Hardin	44 min
Jun 22, 8:14 AM CDT	Special Weather Statement	MEG	Henry, Obion, Weakley	46 min
Jun 22, 3:40 PM CDT	Special Weather Statement	MEG	Carroll, Crockett, Gibson, Haywood, Lauderdale, Tipton	35 min
Jun 22, 4:18 PM CDT	Special Weather Statement	MEG	Henderson	27 min
Jun 22, 4:27 PM CDT	Special Weather Statement	MEG	Madison	33 min
Jun 22, 4:36 PM CDT	Special Weather Statement	MEG	Haywood	39 min
Jun 22, 4:57 PM CDT	Special Weather Statement	MEG	McNairy	48 min
Jun 22, 5:00 PM CDT	Special Weather Statement	MEG	Lauderdale	30 min
Jun 22, 5:06 PM CDT	Special Weather Statement	MEG	Shelby	39 min
Jun 22, 5:15 PM CDT	Special Weather Statement	MEG	Tipton	30 min
Jun 22, 5:26 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Decatur, Hardin, Henderson, McNairy, Madison	49 min
Jun 22, 5:30 PM CDT	Special Weather Statement	MEG	Tipton	30 min
Jun 22, 5:34 PM CDT	Areal Flood Advisory	MEG	Chester, Hardeman, Hardin, Haywood, McNairy, Madison	116 min
Jun 22, 5:39 PM CDT	Special Weather Statement	MEG	Hardeman	21 min
Jun 22, 5:47 PM CDT	Special Weather Statement	MEG	McNairy	43 min
Jun 22, 6:09 PM CDT	Special Weather Statement	MEG	Tipton	36 min
Jun 22, 6:15 PM CDT	Special Weather Statement	MEG	Hardin, McNairy	15 min
Jun 22, 6:37 PM CDT	Special Weather Statement	MEG	Shelby	23 min
Jun 22, 6:45 PM CDT	Severe Thunderstorm Warning	MEG	Shelby	18 min
Jun 22, 2:30 PM CDT	Special Weather Statement	MEG	Clay	30 min
Jun 22, 3:46 PM CDT	Special Weather Statement	MEG	Craighead, Mississippi, Poinsett	29 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 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.