Alert archive / Tennessee / Mesoscale Discussions in 2012
Mesoscale Discussion 188
The Storm Prediction Center issued this mesoscale discussion at Feb 29, 2012, 3:34 PM CST for 4 states. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Feb 29, 2012, 3:34 PM CST (21:34 UTC)
- Expired
- Feb 29, 2012, 5:30 PM CST
- In force
- 116 min
- Issued by
- the Storm Prediction Center
All 116 counties
Adair County, KY, Allen County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Boyle County, KY, Breathitt County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Garrard County, KY, Green County, KY, Harlan County, KY, Hart County, KY, Jackson County, KY, Jessamine County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, McCreary County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Todd County, KY, Warren County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Alcorn County, MS, Benton County, MS, Marshall County, MS, Anderson County, TN, Bedford County, TN, Benton County, TN, Campbell County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Claiborne County, TN, Clay County, TN, Crockett County, TN, Cumberland County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Fayette County, TN, Fentress County, TN, Gibson County, TN, Grainger County, TN, Hancock County, TN, Hardeman County, TN, Hardin County, TN, Hawkins County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Morgan County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Scott County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN, Lee County, VA
The radar
The Nashville radar (KOHX), 92 km from the middle of the area, began a volume at 21:38 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, 9.6 hours before the alert went out and 103 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
- 580 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 365 m²/s²
- 0-3 km storm-relative helicity
- 485 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 8.5
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 29, 12:49 AM CST | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 56 min |
| Feb 29, 1:14 AM CST | Tornado Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 11 hr |
| Feb 29, 2:40 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Boone and 63 more | 65 min |
| Feb 29, 3:53 AM CST | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 97 min |
| Feb 29, 4:39 AM CST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bourbon and 54 more | 7 hr |
| Feb 29, 7:27 AM CST | Tornado Watch | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 6 more | 5 hr |
| Feb 29, 7:38 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Boone and 70 more | 67 min |
| Feb 29, 8:07 AM CST | Mesoscale Discussion | SPC | Caldwell, Calloway, Carlisle, Christian, Crittenden, Fulton and 12 more | 53 min |
| Feb 29, 11:11 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 61 more | 2 hr |
| Feb 29, 11:31 AM CST | Tornado Watch | SPC | Adair, Allen, Barren, Bath, Bell, Boyle and 59 more | 8 hr |
| Feb 29, 11:41 AM CST | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Gallatin, Grant, Kenton and 2 more | 3 hr |
| Feb 29, 12:24 PM CST | Mesoscale Discussion | SPC | Boyd, Greenup, Lawrence | 36 min |
| Feb 29, 12:37 PM CST | Tornado Watch | SPC | Boyd, Carter, Greenup, Lawrence, Lewis, Mason | 7 hr |
| Feb 29, 3:18 PM CST | Mesoscale Discussion | SPC | Boyd, Carter, Greenup, Lawrence, Lewis | 87 min |
| Feb 29, 11:46 AM CST | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 33 more | 89 min |
| Feb 29, 1:48 PM CST | Tornado Watch | SPC | Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more | 7 hr |
| Feb 29, 2:15 PM CST | Severe Thunderstorm Watch | SPC | Attala, Bolivar, Carroll, Choctaw, Clay, Grenada and 18 more | 6 hr |
| Feb 29, 3:20 AM CST | Tornado Watch | SPC | Carroll, Crockett, Dyer, Gibson, Haywood, Henry and 6 more | 9 hr |
| Feb 29, 2:23 PM CST | Mesoscale Discussion | SPC | Johnson | 67 min |
| Feb 29, 4:36 PM CST | Mesoscale Discussion | SPC | Blount, Bradley, Carter, Cocke, Greene, Hamilton and 6 more | 54 min |
| Feb 29, 5:37 PM CST | Tornado Watch | SPC | Blount, Bradley, Carter, Cocke, Greene, Hamilton and 10 more | 3 hr |
| Feb 29, 2:43 PM CST | Tornado Watch | SPC | Alleghany, Bath, Bedford, Bland, Botetourt, Carroll and 22 more | 5 hr |
Nearby
Mesoscale Discussions in Tennessee, 2012Mesoscale Discussions in Kentucky, 2012Mesoscale Discussions in Mississippi, 2012Every mesoscale discussion in 2012
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.