Alert archive / Kentucky / Mesoscale Discussions in 2018
Mesoscale Discussion 93
The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2018, 4:49 PM CST for 39 counties in Kentucky. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2018, 4:49 PM CST (22:49 UTC)
- Expired
- Feb 24, 2018, 6:45 PM CST
- In force
- 116 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 39 counties
Adair County, KY, Allen County, KY, Barren County, KY, Boyle County, KY, Breathitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Cumberland County, KY, Edmonson County, KY, Estill County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hart County, KY, Jackson County, KY, Jessamine County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Owsley County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Wolfe County, KY
The radar
The Louisville radar (KLVX), 89 km from the middle of the area, began a volume at 22:50 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, 10.8 hours before the alert went out and 174 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
- 73 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 483 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 387 m²/s²
- 0-3 km storm-relative helicity
- 414 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 24, 2:58 PM CST | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 10 more | 62 min |
| Feb 24, 3:16 PM CST | Tornado Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 8 hr |
Nearby
Mesoscale Discussions in Kentucky, 2018Every mesoscale discussion in 2018
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.