Alert archive / Kentucky / Tornado Watches in 2007
Tornado Watch 728
The Storm Prediction Center issued this tornado watch at Oct 19, 2007, 2:26 AM EDT for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 19, 2007, 2:26 AM EDT (06:26 UTC)
- Expired
- Oct 19, 2007, 5:26 AM EDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 75 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, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Athens County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH, Washington County, OH, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Claiborne County, TN, Grainger County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, Marion 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, Sequatchie County, TN, Sevier County, TN, Union County, TN, Cabell County, WV, Mason County, WV, Wayne County, WV
The radar
The Knoxville radar (KMRX), 96 km from the middle of the area, began a volume at 06:28 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 2:43 AM EDT | Severe Thunderstorm Warning | MRX | Campbell, Morgan, Roane, Scott | 62 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 6.4 hours before the alert went out and 226 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
- 1487 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 778 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 337 m²/s²
- Significant tornado parameter
- 2.8
- Supercell composite
- 10.5
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, 1:52 AM EDT | Mesoscale Discussion | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 27 more | 53 min |
| 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 | Berkeley, Jefferson | 55 min |
Nearby
Tornado Watches in Kentucky, 2007Tornado Watches in Tennessee, 2007Tornado Watches in Ohio, 2007Every tornado watch 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.