Alert archive / Kentucky / Mesoscale Discussions in 2011
Mesoscale Discussion 131
The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2011, 7:22 PM CST for 38 counties in Kentucky; 6 counties in Tennessee. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2011, 7:22 PM CST (01:22 UTC)
- Expired
- Feb 24, 2011, 8:45 PM CST
- In force
- 83 min
- Issued by
- the Storm Prediction Center
All 44 counties
Adair County, KY, Allen County, KY, Barren County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Casey County, KY, Christian County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fulton County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Hart County, KY, Hickman County, KY, Hopkins County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Lyon County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Pulaski County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Wayne County, KY, Clay County, TN, Macon County, TN, Montgomery County, TN, Pickett County, TN, Robertson County, TN, Stewart County, TN
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 00:00Z, 1.4 hours before the alert went out and 93 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
- 17 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 793 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 538 m²/s²
- 0-3 km storm-relative helicity
- 629 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 |
|---|---|---|---|---|
| Feb 24, 7:41 PM CST | Tornado Watch | SPC | Adair, Allen, Barren, Boyle, Butler, Casey and 17 more | 5 hr |
| Feb 24, 10:59 PM CST | Severe Thunderstorm Watch | SPC | Bell, Breathitt, Clay, Harlan, Jackson, Knott and 12 more | 5 hr |
| Feb 25, 12:48 AM CST | Mesoscale Discussion | SPC | Bell, Floyd, Harlan, Johnson, Knott, Lawrence and 6 more | 27 min |
| Feb 24, 8:11 PM CST | Mesoscale Discussion | SPC | Giles, Hardin, Lawrence, Lewis, Lincoln, McNairy and 4 more | 64 min |
| Feb 24, 8:30 PM CST | Tornado Watch | SPC | Franklin, Lincoln, Moore | 6 hr |
| Feb 24, 10:38 PM CST | Mesoscale Discussion | SPC | Giles, Hardin, Lawrence, Lewis, Lincoln, McNairy and 4 more | 97 min |
| Feb 25, 1:35 AM CST | Mesoscale Discussion | SPC | Blount, Monroe, Polk | 55 min |
Nearby
Mesoscale Discussions in Kentucky, 2011Mesoscale Discussions in Tennessee, 2011Every mesoscale discussion in 2011
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.