Alert archive / Tennessee / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 301, NWS Memphis, TN

August 7, 20236 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Aug 7, 2023, 8:48 AM CDT for 6 counties in Tennessee. It was in force for 42 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 7, 2023, 8:48 AM CDT (13:48 UTC)
Expired
Aug 7, 2023, 9:30 AM CDT
In force
42 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chester County, TN, Fayette County, TN, Hardeman County, TN, Haywood County, TN, Madison County, TN, McNairy County, TN

The radar

The Memphis radar (KNQA), 84 km from the middle of the area, began a volume at 13:50 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

Nashville Metro, TN (KBNA), launched 12:00Z, 1.8 hours before the alert went out and 229 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, Nashville Metro, TN at 12:00Z on 2023-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1827 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, Nashville Metro, TN at 12:00Z on 2023-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 square meters per square second.19395878Sfc1 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
1827 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
809 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
355 m²/s²
Significant tornado parameter
3.8
Supercell composite
16.6

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 Aug 7, 6:21 AM CDT, 2 hours 27 minutes earlier.

Area forecast discussion, Aug 7, 6:21 AM CDT, 2 hours 27 minutes before
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In the hours before

Special weather statement, Aug 7, 7:00 AM CDT, 1 hour 48 minutes before
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Special weather statement, Aug 7, 7:27 AM CDT, 1 hour 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.
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Special weather statement, Aug 7, 7:53 AM CDT, 55 minutes before
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<head>
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  <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>
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Special weather statement, Aug 7, 8:11 AM CDT, 37 minutes before
<!doctype html>
<html lang="en">
<head>
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  <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>
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</body>
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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 2:50 AM CDTHeat AdvisoryMEGCalhoun, Chickasaw, Monroe, Tallahatchie, Yalobusha12 hr
Aug 7, 9:32 AM CDTSevere Thunderstorm WarningMEGBenton, Tippah43 min
Aug 7, 9:36 AM CDTSpecial Weather StatementMEGMarshall24 min
Aug 7, 10:13 AM CDTSpecial Weather StatementMEGAlcorn, Tippah, Tishomingo47 min
Aug 7, 12:06 PM CDTSpecial Weather StatementMEGLee, Pontotoc, Prentiss, Tippah, Union24 min
Aug 7, 12:28 PM CDTSevere Thunderstorm WarningMEGAlcorn, Itawamba, Lafayette, Lee, Pontotoc, Prentiss and 2 more32 min
Aug 7, 12:59 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 3 more46 min
Aug 7, 1:39 PM CDTSevere Thunderstorm WarningMEGItawamba, Lee, Monroe36 min
Aug 7, 8:11 AM CDTSpecial Weather StatementMEGShelby34 min
Aug 7, 8:17 AM CDTSevere Thunderstorm WarningMEGShelby, Tipton43 min
Aug 7, 8:33 AM CDTSevere Thunderstorm WarningMEGFayette, Haywood, Shelby, Tipton27 min
Aug 7, 8:36 AM CDTSevere Thunderstorm WarningMEGShelby, Tipton28 min
Aug 7, 9:02 AM CDTSpecial Weather StatementMEGFayette28 min
Aug 7, 9:10 AM CDTSevere Thunderstorm WarningMEGFayette35 min
Aug 7, 9:22 AM CDTSpecial Weather StatementMEGFayette38 min
Aug 7, 9:29 AM CDTSevere Thunderstorm WarningMEGChester, Decatur, Hardeman, Hardin, Henderson, McNairy and 1 more46 min
Aug 7, 7:00 AM CDTSpecial Weather StatementMEGPoinsett30 min
Aug 7, 7:27 AM CDTSpecial Weather StatementMEGPoinsett33 min
Aug 7, 7:53 AM CDTSpecial Weather StatementMEGCross37 min
Aug 7, 10:06 AM CDTSpecial Weather StatementMEGPhillips54 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 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.