Alert archive / Tennessee / Mesoscale Discussions in 2013
Mesoscale Discussion 93
The Storm Prediction Center issued this mesoscale discussion at Jan 30, 2013, 7:38 AM EST for 7 states. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jan 30, 2013, 7:38 AM EST (12:38 UTC)
- Expired
- Jan 30, 2013, 9:15 AM EST
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 111 counties
Bartow County, GA, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Gordon County, GA, Haralson County, GA, Murray County, GA, Paulding County, GA, Polk County, GA, Walker County, GA, Whitfield County, GA, Bell County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Floyd County, KY, Greenup County, KY, Harlan County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Menifee County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Rowan County, KY, Whitley County, KY, Wolfe County, KY, Swain County, NC, Athens County, OH, Fairfield County, OH, Gallia County, OH, Hocking County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Vinton County, OH, Washington County, OH, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson 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, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, Buchanan County, VA, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA, Boone County, WV, Cabell County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, McDowell County, WV, Mingo County, WV, Putnam County, WV, Roane County, WV, Wayne County, WV, Wirt County, WV, Wood County, WV
The radar
The Knoxville radar (KMRX), 65 km from the middle of the area, began a volume at 12:38 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 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 12:00Z, 0.6 hours before the alert went out and 274 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
- 1 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 495 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- -373 m²/s²
- 0-3 km storm-relative helicity
- -677 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jan 30, 5:51 AM EST | Tornado Watch | SPC | Bartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 8 more | 7 hr |
| Jan 30, 8:11 AM EST | Tornado Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 81 more | 7 hr |
| Jan 30, 11:09 AM EST | Mesoscale Discussion | SPC | Bartow, Carroll, Cherokee, Clayton, Cobb, Coweta and 18 more | 96 min |
| Jan 30, 12:50 PM EST | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Butts and 63 more | 85 min |
| Jan 30, 1:19 PM EST | Tornado Watch | SPC | Baker, Baldwin, Banks, Barrow, Bartow, Bibb and 91 more | 9 hr |
| Jan 30, 4:13 PM EST | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Colquitt, Columbia, Crisp and 32 more | 2 hr |
| Jan 30, 5:31 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brooks and 34 more | 59 min |
| Jan 30, 5:45 PM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Baldwin, Ben Hill and 71 more | 6 hr |
| Jan 29, 7:08 PM EST | Mesoscale Discussion | SPC | Ballard, Caldwell, Carlisle, Crittenden, Daviess, Fulton and 13 more | 2 hr |
| Jan 29, 8:13 PM EST | Tornado Watch | SPC | Ballard, Carlisle, Fulton, Graves, Hickman, McCracken | 6 hr |
| Jan 29, 10:19 PM EST | Mesoscale Discussion | SPC | Allen, Ballard, Barren, Breckinridge, Bullitt, Butler and 39 more | 86 min |
| Jan 29, 10:35 PM EST | Tornado Watch | SPC | Allen, Barren, Breckinridge, Bullitt, Butler, Caldwell and 33 more | 6 hr |
| Jan 29, 10:49 PM EST | Mesoscale Discussion | SPC | Calloway, Fulton | 116 min |
| Jan 30, 1:45 AM EST | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 4 more | 60 min |
| Jan 30, 3:33 AM EST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Boone and 76 more | 57 min |
| Jan 30, 4:35 AM EST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bourbon and 57 more | 4 hr |
| Jan 30, 3:21 PM EST | Mesoscale Discussion | SPC | Alleghany, Rockingham, Stokes, Surry, Wilkes, Yadkin | 84 min |
| Jan 30, 3:42 PM EST | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more | 5 hr |
| Jan 30, 4:06 PM EST | Mesoscale Discussion | SPC | Alamance, Chatham, Davidson, Durham, Franklin, Granville and 6 more | 114 min |
| Jan 30, 12:05 AM EST | Mesoscale Discussion | SPC | Defiance, Mercer, Paulding, Van Wert, Williams | 85 min |
| Jan 30, 8:31 AM EST | Severe Thunderstorm Watch | SPC | Athens, Belmont, Carroll, Columbiana, Guernsey, Harrison and 5 more | 4 hr |
| Jan 29, 8:31 PM EST | Mesoscale Discussion | SPC | Chester, Crockett, Fayette, Hardeman, Haywood, Lauderdale and 4 more | 119 min |
| Jan 29, 11:07 PM EST | Tornado Watch | SPC | Benton, Carroll, Cheatham, Chester, Davidson, Decatur and 20 more | 6 hr |
| Jan 30, 2:31 AM EST | Mesoscale Discussion | SPC | Bedford, Cannon, Clay, Coffee, DeKalb, Fentress and 20 more | 29 min |
| Jan 30, 2:46 AM EST | Tornado Watch | SPC | Bedford, Cannon, Clay, Coffee, Cumberland, DeKalb and 19 more | 8 hr |
| Jan 30, 4:03 AM EST | Mesoscale Discussion | SPC | Benton, Cheatham, Chester, Davidson, Decatur, Dickson and 16 more | 57 min |
| Jan 30, 8:43 AM EST | Mesoscale Discussion | SPC | Bledsoe, Cumberland, Grundy, Marion, Sequatchie | 62 min |
| Jan 30, 10:19 AM EST | Mesoscale Discussion | SPC | Albemarle, Alleghany, Amherst, Augusta, Bath, Bedford and 43 more | 86 min |
| Jan 30, 12:54 PM EST | Mesoscale Discussion | SPC | Albemarle, Alleghany, Amelia, Amherst, Appomattox, Arlington and 74 more | 96 min |
| Jan 30, 6:31 PM EST | Tornado Watch | SPC | Albemarle, Arlington, Caroline, Culpeper, Fairfax, Fauquier and 17 more | 8 hr |
Nearby
Mesoscale Discussions in Tennessee, 2013Mesoscale Discussions in Kentucky, 2013Mesoscale Discussions in Ohio, 2013Every mesoscale discussion in 2013
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.