Alert archive / Tennessee / Mesoscale Discussions in 2004

Mesoscale Discussion 2535

December 10, 20049 counties in Georgia; 4 counties in North Carolina; 27 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Dec 10, 2004, 12:53 PM EST for 9 counties in Georgia; 4 counties in North Carolina; 27 counties in Tennessee. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Dec 10, 2004, 12:53 PM EST (17:53 UTC)
Expired
Dec 10, 2004, 3:00 PM EST
In force
2 hr
Issued by
the Storm Prediction Center
All 40 counties

Catoosa County, GA, Chattooga County, GA, Dade County, GA, Fannin County, GA, Gilmer County, GA, Gordon County, GA, Murray County, GA, Walker County, GA, Whitfield County, GA, Cherokee County, NC, Clay County, NC, Graham County, NC, Swain County, NC, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Claiborne County, TN, Cocke County, TN, Cumberland County, TN, Grainger County, TN, Grundy County, TN, Hamblen County, TN, Hamilton County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, Marion County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Sequatchie County, TN, Sevier County, TN, Union County, TN, Van Buren County, TN

The radar

The Northeast Alabama radar (KHTX), 128 km from the middle of the area, began a volume at 17:53 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, 5.9 hours before the alert went out and 191 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 2004-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 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 2004-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939587897Sfc1 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
137 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 9, 7:15 PM ESTMesoscale DiscussionSPCBaldwin, Barrow, Bibb, Burke, Butts, Carroll and 44 more90 min
Dec 9, 9:05 PM ESTTornado WatchSPCBaldwin, Barrow, Bibb, Burke, Butts, Carroll and 51 more6 hr
Dec 9, 10:48 PM ESTMesoscale DiscussionSPCBaker, Ben Hill, Bleckley, Calhoun, Clay, Colquitt and 29 more87 min
Dec 9, 11:25 PM ESTTornado WatchSPCBaker, Ben Hill, Berrien, Bleckley, Brooks, Calhoun and 40 more4 hr
Dec 10, 12:07 AM ESTMesoscale DiscussionSPCBaldwin, Barrow, Bibb, Burke, Butts, Carroll and 52 more83 min
Dec 10, 2:11 AM ESTMesoscale DiscussionSPCBaker, Baldwin, Barrow, Ben Hill, Berrien, Bleckley and 100 more64 min
Dec 10, 2:35 AM ESTTornado WatchSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 44 more6 hr
Dec 10, 6:00 AM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 44 more2 hr
Dec 10, 11:12 AM ESTMesoscale DiscussionSPCBanks, Bartow, Catoosa, Chattooga, Cherokee, Dade and 19 more33 min
Dec 10, 3:20 AM ESTTornado WatchSPCBeaufort, Bertie, Camden, Carteret, Chowan, Craven and 33 more7 hr
Dec 10, 6:18 AM ESTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Chowan, Craven, Cumberland and 31 more117 min

Nearby

Mesoscale Discussions in Tennessee, 2004Mesoscale Discussions in Georgia, 2004Mesoscale Discussions in North Carolina, 2004Every mesoscale discussion in 2004

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.