Alert archive / Kentucky / Mesoscale Discussions in 2025
Mesoscale Discussion 396
The Storm Prediction Center issued this mesoscale discussion at Apr 4, 2025, 3:29 PM CDT for 48 counties in Kentucky; 17 counties in Tennessee; Lee County, Virginia. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 4, 2025, 3:29 PM CDT (20:29 UTC)
- Expired
- Apr 4, 2025, 6:00 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 66 counties
Adair County, KY, Allen County, KY, Barren County, KY, Bell County, KY, Boyle County, KY, Breathitt County, KY, Butler County, KY, Casey County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Estill County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Harlan County, KY, Hart County, KY, Jackson County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, McCreary County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Owsley County, KY, Perry County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Campbell County, TN, Claiborne County, TN, Clay County, TN, Davidson County, TN, Fentress County, TN, Jackson County, TN, Macon County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Scott County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN, Lee County, VA
The radar
The Nashville radar (KOHX), 139 km from the middle of the area, began a volume at 20:28 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.5 hours before the alert went out and 311 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 312 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Apr 3, 7:56 PM CDT | Mesoscale Discussion | SPC | Fulton | 64 min |
| Apr 3, 8:58 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Ballard, Barren, Boyle, Breckinridge and 38 more | 92 min |
| Apr 4, 12:57 PM CDT | Mesoscale Discussion | SPC | Calloway, Fulton, Graves, Hickman, Trigg | 2 hr |
| Apr 4, 2:56 PM CDT | Tornado Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 11 more | 7 hr |
| Apr 4, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Barren, Bell, Boyle, Breathitt and 45 more | 3 hr |
| Apr 4, 6:16 PM CDT | Mesoscale Discussion | SPC | Adair, Anderson, Barren, Boyle, Breathitt, Breckinridge and 46 more | 59 min |
| Apr 4, 2:06 AM CDT | Mesoscale Discussion | SPC | Shelby, Tipton | 114 min |
| Apr 4, 2:52 AM CDT | Mesoscale Discussion | SPC | Arlington, Clarke, Fairfax, Fauquier, Frederick, Loudoun and 11 more | 53 min |
Nearby
Mesoscale Discussions in Kentucky, 2025Mesoscale Discussions in Tennessee, 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.