Alert archive / Tennessee / Mesoscale Discussions in 2025
Mesoscale Discussion 71
The Storm Prediction Center issued this mesoscale discussion at Feb 6, 2025, 4:10 PM CST for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 6, 2025, 4:10 PM CST (22:10 UTC)
- Expired
- Feb 6, 2025, 6:15 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 40%
All 88 counties
Allen County, KY, Bell County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Harlan County, KY, Knox County, KY, Laurel County, KY, Leslie County, KY, Letcher County, KY, McCreary County, KY, Metcalfe County, KY, Monroe County, KY, Perry County, KY, Pulaski County, KY, Russell County, KY, Simpson County, KY, Wayne County, KY, Whitley County, KY, Haywood County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Campbell County, TN, Cannon County, TN, Carter County, TN, Cheatham County, TN, Claiborne County, TN, Clay County, TN, Cocke County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Loudon County, TN, Macon County, TN, Meigs County, TN, Monroe County, TN, Montgomery County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Robertson County, TN, Rutherford County, TN, Scott County, TN, Sevier County, TN, Smith County, TN, Sullivan County, TN, Sumner County, TN, Trousdale County, TN, Unicoi County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Washington County, TN, White County, TN, Williamson County, TN, Wilson 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, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wise County, VA
The radar
The Nashville radar (KOHX), 141 km from the middle of the area, began a volume at 22:13 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, 10.2 hours before the alert went out and 145 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
- 426 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 809 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 345 m²/s²
- 0-3 km storm-relative helicity
- 388 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 7.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 12:08 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Barren, Bell, Butler, Calloway and 36 more | 2 hr |
| Feb 6, 4:19 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bourbon and 61 more | 86 min |
| Feb 6, 5:13 AM CST | Tornado Watch | SPC | Adair, Allen, Barren, Bell, Boyle, Breathitt and 51 more | 5 hr |
| Feb 6, 7:12 AM CST | Mesoscale Discussion | SPC | Adair, Barren, Breathitt, Casey, Clay, Clinton and 24 more | 93 min |
| Feb 6, 8:52 AM CST | Mesoscale Discussion | SPC | Bell, Clay, Harlan, Knox, Leslie, Letcher and 3 more | 83 min |
| Feb 6, 1:21 PM CST | Mesoscale Discussion | SPC | Calloway, Carlisle, Fulton, Graves, Hickman, McCreary and 1 more | 2 hr |
Nearby
Mesoscale Discussions in Tennessee, 2025Mesoscale Discussions in Kentucky, 2025Mesoscale Discussions in Virginia, 2025Every mesoscale discussion in 2025
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.