Alert archive / Tennessee / Mesoscale Discussions in 2004
Mesoscale Discussion 1544
The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2004, 2:34 PM CDT for 8 states. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2004, 2:34 PM CDT (19:34 UTC)
- Expired
- Jul 6, 2004, 3:30 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 141 counties
Lauderdale County, AL, Clay County, AR, Mississippi County, AR, Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saint Clair County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Allen County, KY, Ballard County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Fulton County, KY, Graves County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Jefferson County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Dunklin County, MO, Iron County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Alcorn County, MS, Benton County, MS, DeSoto County, MS, Marshall County, MS, Tate County, MS, Tippah County, MS, Tunica County, MS, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Shelby County, TN, Stewart County, TN, Sumner County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN
The radar
The Paducah radar (KPAH), 91 km from the middle of the area, began a volume at 19:36 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 7.6 hours before the alert went out and 180 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
- 449 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 3:50 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Madison, Sebastian, Washington | 5 hr |
| Jul 6, 5:18 AM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Crawford, Madison, Washington | 117 min |
| Jul 6, 11:01 AM CDT | Mesoscale Discussion | SPC | Clay, Fulton, Randolph, Sharp | 59 min |
| Jul 6, 12:10 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Cleburne, Craighead, Crittenden, Cross, Faulkner and 15 more | 6 hr |
| Jul 6, 5:37 PM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Fulton, Greene, Lawrence, Randolph and 1 more | 53 min |
| Jul 5, 7:05 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Greene, Jersey, Macoupin, Madison and 2 more | 55 min |
| Jul 5, 9:10 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Christian, Clark, Clay, Clinton, Coles and 18 more | 4 hr |
| Jul 5, 9:29 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henderson, Henry, Jo Daviess, Lee and 8 more | 61 min |
| Jul 5, 11:14 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 13 more | 91 min |
| Jul 5, 11:44 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clark, Clay, Clinton, Coles and 26 more | 91 min |
| Jul 6, 6:50 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 19 more | 4 hr |
| Jul 6, 9:00 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 28 more | 60 min |
| Jul 6, 2:53 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 33 more | 37 min |
| Jul 6, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Champaign, Christian, Clark, Clay, Coles and 30 more | 8 hr |
| Jul 6, 1:45 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 31 more | 5 hr |
| Jul 6, 1:35 PM CDT | Mesoscale Discussion | SPC | Clark, Crawford, Dubois, Floyd, Harrison, Orange and 2 more | 25 min |
| Jul 6, 1:50 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Floyd, Harrison, Orange, Perry and 2 more | 6 hr |
| Jul 6, 5:40 PM CDT | Severe Thunderstorm Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 32 more | 5 hr |
| Jul 5, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Andrew, Atchison, Buchanan, Holt, Nodaway, Worth | 6 hr |
| Jul 6, 1:16 AM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Buchanan, Holt, Nodaway, Worth | 119 min |
| Jul 6, 2:45 AM CDT | Mesoscale Discussion | SPC | Audrain, Bates, Benton, Boone, Buchanan, Caldwell and 33 more | 2 hr |
| Jul 6, 3:10 AM CDT | Severe Thunderstorm Watch | SPC | Barton, Bates, Benton, Boone, Buchanan, Caldwell and 30 more | 5 hr |
| Jul 5, 7:40 PM CDT | Mesoscale Discussion | SPC | Carter, Johnson, Unicoi | 65 min |
Nearby
Mesoscale Discussions in Tennessee, 2004Mesoscale Discussions in Kentucky, 2004Mesoscale Discussions in Illinois, 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.