Alert archive / Tennessee / Mesoscale Discussions in 2006
Mesoscale Discussion 409
The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2006, 7:06 PM CDT for 5 states. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Apr 2, 2006, 7:06 PM CDT (00:06 UTC)
- Expired
- Apr 2, 2006, 8:30 PM CDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 134
All 108 counties
Crittenden County, AR, Mississippi County, AR, Alexander County, IL, Gallatin County, IL, Hardin County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Williamson County, IL, Adair County, KY, Allen County, KY, Ballard County, KY, Barren County, KY, Breckinridge County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Cumberland County, KY, Daviess County, KY, Edmonson County, KY, Fulton County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Hart County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Larue County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Bedford County, TN, Benton County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Clay County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, DeKalb 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, Jackson County, TN, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Moore County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Shelby County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Tipton County, TN, Trousdale County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN, Wilson County, TN
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.1 hours before the alert went out and 123 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
- 80 J/kg
- Mixed-layer CIN
- -308 J/kg
- Mixed-layer LCL
- 1096 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 324 m²/s²
- 0-3 km storm-relative helicity
- 318 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 |
|---|---|---|---|---|
| Apr 2, 10:14 PM CDT | Tornado Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 25 more | 6 hr |
| Apr 2, 8:40 PM CDT | Tornado Watch | SPC | Adair, Anderson, Bath, Bell, Boone, Bourbon and 62 more | 6 hr |
| Apr 2, 9:10 PM CDT | Mesoscale Discussion | SPC | Allen, Butler, Christian, Logan, Simpson, Todd and 1 more | 2 hr |
| Apr 2, 9:27 PM CDT | Mesoscale Discussion | SPC | Anderson, Bath, Boone, Bourbon, Boyd, Bracken and 41 more | 93 min |
| Apr 2, 10:44 PM CDT | Mesoscale Discussion | SPC | Boyd, Carter, Elliott, Greenup, Johnson, Lawrence and 5 more | 31 min |
| Apr 2, 11:01 PM CDT | Severe Thunderstorm Watch | SPC | Boyd, Carter, Floyd, Greenup, Harlan, Johnson and 6 more | 3 hr |
| Apr 3, 9:40 AM CDT | Tornado Watch | SPC | Boyd, Carter, Greenup, Lewis | 6 hr |
| Apr 2, 7:38 PM CDT | Tornado Watch | SPC | Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 26 more | 3 hr |
| Apr 2, 10:27 PM CDT | Tornado Watch | SPC | Anderson, Bedford, Benton, Bledsoe, Blount, Bradley and 64 more | 7 hr |
| Apr 3, 2:16 AM CDT | Mesoscale Discussion | SPC | Polk | 89 min |
Nearby
Mesoscale Discussions in Tennessee, 2006Mesoscale Discussions in Kentucky, 2006Mesoscale Discussions in Illinois, 2006Every mesoscale discussion in 2006
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.