Alert archive / Kentucky / Mesoscale Discussions in 2007
Mesoscale Discussion 2122
The Storm Prediction Center issued this mesoscale discussion at Oct 19, 2007, 1:52 AM EDT for 6 states. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Oct 19, 2007, 1:52 AM EDT (05:52 UTC)
- Expired
- Oct 19, 2007, 2:45 AM EDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 72 counties
Bath County, KY, Bell County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Menifee County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Rowan County, KY, Whitley County, KY, Wolfe County, KY, Cherokee County, NC, Graham County, NC, Swain County, NC, Adams County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Pike County, OH, Scioto County, OH, Anderson County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sevier County, TN, Union County, TN, City of Norton, VA, Lee County, VA, Wise County, VA, Cabell County, WV, Lincoln County, WV, Mingo County, WV, Wayne County, WV
The radar
The Jackson,KY radar (KJKL), 13 km from the middle of the area, began a volume at 05:53 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 00:00Z, 5.9 hours before the alert went out and 222 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
- 807 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 958 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 317 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 5.2
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 |
|---|---|---|---|---|
| Oct 18, 8:51 PM EDT | Mesoscale Discussion | SPC | Allen, Ballard, Barren, Breckinridge, Bullitt, Butler and 41 more | 84 min |
| Oct 18, 10:22 PM EDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Boone, Bourbon and 53 more | 5 hr |
| Oct 18, 11:50 PM EDT | Mesoscale Discussion | SPC | Adair, Anderson, Barren, Boone, Bourbon, Boyle and 42 more | 85 min |
| Oct 19, 2:26 AM EDT | Tornado Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 31 more | 3 hr |
| Oct 18, 10:57 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Crawford, Defiance, Erie, Fulton and 15 more | 93 min |
| Oct 18, 10:51 PM EDT | Mesoscale Discussion | SPC | Bedford, Cannon, Cheatham, Coffee, Davidson, DeKalb and 25 more | 84 min |
| Oct 18, 11:27 PM EDT | Tornado Watch | SPC | Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more | 4 hr |
| Oct 19, 6:05 PM EDT | Mesoscale Discussion | SPC | Albemarle, Arlington, Augusta, Caroline, Clarke, Culpeper and 33 more | 55 min |
Nearby
Mesoscale Discussions in Kentucky, 2007Mesoscale Discussions in Tennessee, 2007Mesoscale Discussions in Ohio, 2007Every mesoscale discussion in 2007
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.