Alert archive / Tennessee / Mesoscale Discussions in 2005
Mesoscale Discussion 2117
The Storm Prediction Center issued this mesoscale discussion at Aug 29, 2005, 11:59 PM CDT for 21 counties in Kentucky; 39 counties in Tennessee. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 29, 2005, 11:59 PM CDT (04:59 UTC)
- Expired
- Aug 30, 2005, 3:00 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 60 counties
Allen County, KY, Barren County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Cumberland County, KY, Edmonson County, KY, Graves County, KY, Hart County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Bedford County, TN, Benton County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Franklin County, TN, Grundy County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Moore County, TN, Overton County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Sequatchie County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Weakley County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 56 km from the middle of the area, began a volume at 05:02 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 00:00Z, 5.0 hours before the alert went out and 47 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
- 370 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 |
|---|---|---|---|---|
| Aug 30, 12:55 PM CDT | Tornado Watch | SPC | Floyd, Harlan, Johnson, Knott, Leslie, Letcher and 3 more | 7 hr |
| Aug 29, 10:05 PM CDT | Mesoscale Discussion | SPC | Bradley, Franklin, Grundy, Hamilton, Lincoln, McMinn and 5 more | 115 min |
| Aug 30, 3:39 AM CDT | Mesoscale Discussion | SPC | Blount, Bradley, Carter, Cocke, Grainger, Greene and 18 more | 2 hr |
| Aug 30, 4:50 AM CDT | Tornado Watch | SPC | Anderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 30 more | 8 hr |
| Aug 30, 7:47 AM CDT | Mesoscale Discussion | SPC | Anderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 28 more | 118 min |
| Aug 30, 11:42 AM CDT | Mesoscale Discussion | SPC | Carter, Hancock, Hawkins, Johnson, Sullivan, Unicoi and 1 more | 2 hr |
| Aug 30, 12:25 PM CDT | Tornado Watch | SPC | Carter, Johnson, Unicoi | 8 hr |
| Aug 30, 3:37 PM CDT | Mesoscale Discussion | SPC | Johnson | 83 min |
Nearby
Mesoscale Discussions in Tennessee, 2005Mesoscale Discussions in Kentucky, 2005Every mesoscale discussion in 2005
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.