Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 39, NWS Morristown, TN

May 6, 1999Cherokee County, North Carolina

NWS Morristown, TN issued this severe thunderstorm warning at May 6, 1999, 1:08 AM EDT for Cherokee County, North Carolina. It was in force for 62 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
May 6, 1999, 1:08 AM EDT (05:08 UTC)
Expired
May 6, 1999, 2:10 AM EDT
In force
62 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Cherokee County, NC

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 5.1 hours before the alert went out and 200 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, Peachtre/Fal Fld, GA at 00:00Z on 1999-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 645 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, Peachtre/Fal Fld, GA at 00:00Z on 1999-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.193958Sfc1 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
645 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
1.0
Supercell composite
9.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at May 5, 9:00 PM EDT, 4 hours 8 minutes earlier.

Area forecast discussion, May 5, 9:00 PM EDT, 4 hours 8 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, May 5, 11:23 PM EDT, 1 hour 45 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 Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 5, 11:43 PM EDTSevere Thunderstorm WarningMRXBledsoe, Sequatchie47 min
May 5, 11:43 PM EDTSevere Thunderstorm WarningMRXMarion47 min
May 5, 11:58 PM EDTSevere Thunderstorm WarningMRXMorgan, Roane62 min
May 6, 12:23 AM EDTSevere Thunderstorm WarningMRXBlount, Knox, Loudon62 min
May 6, 12:23 AM EDTSevere Thunderstorm WarningMRXHamilton, Meigs, Rhea62 min
May 6, 12:30 AM EDTSevere Thunderstorm WarningMRXScott65 min
May 6, 12:31 AM EDTSevere Thunderstorm WarningMRXMarion19 min
May 6, 12:39 AM EDTSevere Thunderstorm WarningMRXAnderson, Campbell61 min
May 6, 12:49 AM EDTSevere Thunderstorm WarningMRXMarion31 min
May 6, 12:56 AM EDTSevere Thunderstorm WarningMRXBradley, McMinn, Monroe64 min
May 6, 1:15 AM EDTSevere Thunderstorm WarningMRXClaiborne, Union60 min
May 6, 1:15 AM EDTSevere Thunderstorm WarningMRXBlount, Knox60 min
May 6, 1:22 AM EDTSevere Thunderstorm WarningMRXSevier63 min
May 6, 1:26 AM EDTSevere Thunderstorm WarningMRXHamilton34 min
May 6, 1:37 AM EDTSevere Thunderstorm WarningMRXPolk63 min
May 6, 1:38 AM EDTSevere Thunderstorm WarningMRXGrainger, Hamblen, Jefferson62 min
May 6, 1:56 AM EDTSevere Thunderstorm WarningMRXBradley49 min
May 6, 1:56 AM EDTSevere Thunderstorm WarningMRXMonroe49 min
May 6, 2:38 AM EDTSevere Thunderstorm WarningMRXPolk32 min
May 6, 9:06 AM EDTFlash Flood WarningMRXSevier6 hr
May 6, 4:19 AM EDTSevere Thunderstorm WarningMRXClay31 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1999Every severe thunderstorm warning in 1999

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.