Alert archive / Kentucky / Tornado Watches in 2009
Tornado Watch 133
The Storm Prediction Center issued this tornado watch at Apr 10, 2009, 2:51 PM EDT for 33 counties in Kentucky; 14 counties in Tennessee; 9 counties in Virginia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2009, 2:51 PM EDT (18:51 UTC)
- Expired
- Apr 10, 2009, 9:04 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 56 counties
Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel 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, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, Buchanan County, VA, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA
The radar
The Jackson,KY radar (KJKL), 47 km from the middle of the area, began a volume at 18:55 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
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 3:18 PM EDT | Tornado Warning | JKL | Estill, Jackson, Pulaski, Rockcastle | 27 min |
| Apr 10, 3:40 PM EDT | Severe Thunderstorm Warning | JKL | Bath, Estill, Menifee, Montgomery, Powell | 50 min |
| Apr 10, 3:54 PM EDT | Tornado Warning | JKL | Bath, Estill, Fleming, Menifee, Montgomery, Powell | 36 min |
| Apr 10, 4:03 PM EDT | Severe Thunderstorm Warning | JKL | Estill, Lee, Menifee, Morgan, Powell, Wolfe | 42 min |
| Apr 10, 4:13 PM EDT | Tornado Warning | JKL | Estill, Lee, Menifee, Morgan, Powell, Wolfe | 32 min |
| Apr 10, 4:24 PM EDT | Severe Thunderstorm Warning | MRX | Campbell, Claiborne, Union | 36 min |
| Apr 10, 4:27 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne, Hancock | 48 min |
| Apr 10, 4:29 PM EDT | Severe Thunderstorm Warning | JKL | Bath, Fleming, Menifee, Montgomery, Morgan, Powell and 1 more | 31 min |
| Apr 10, 4:38 PM EDT | Flash Flood Warning | JKL | Bath, Montgomery | 3 hr |
| Apr 10, 4:39 PM EDT | Tornado Warning | JKL | Magoffin, Menifee, Morgan, Rowan, Wolfe | 36 min |
| Apr 10, 4:40 PM EDT | Tornado Warning | MRX | Lee | 33 min |
| Apr 10, 4:41 PM EDT | Severe Thunderstorm Warning | JKL | Bath, Estill, Lee, Menifee, Montgomery, Morgan and 3 more | 49 min |
| Apr 10, 4:52 PM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Elliott, Floyd, Johnson, Magoffin, Menifee and 2 more | 38 min |
| Apr 10, 4:57 PM EDT | Severe Thunderstorm Warning | JKL | Bell, Harlan, Leslie | 48 min |
| Apr 10, 5:18 PM EDT | Tornado Warning | MRX | Hancock | 42 min |
| Apr 10, 5:28 PM EDT | Severe Thunderstorm Warning | JKL | Elliott, Johnson, Magoffin, Martin, Morgan | 47 min |
| Apr 10, 5:32 PM EDT | Severe Thunderstorm Warning | MRX | Grainger, Hamblen, Jefferson, Knox, Union | 28 min |
| Apr 10, 5:45 PM EDT | Tornado Warning | MRX | Lee, Scott, Wise, City of Norton | 60 min |
| Apr 10, 6:03 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Grainger, Greene, Hamblen, Hawkins, Jefferson and 1 more | 34 min |
| Apr 10, 6:09 PM EDT | Severe Thunderstorm Warning | JKL | Floyd, Johnson, Magoffin, Martin, Pike | 51 min |
| Apr 10, 6:27 PM EDT | Severe Thunderstorm Warning | JKL | Floyd, Martin, Pike | 48 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.9 hours before the alert went out and 240 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
- 1278 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 465 m²/s²
- 0-3 km storm-relative helicity
- 808 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 11:52 PM EDT | Severe Thunderstorm Watch | SPC | Ballard, Calloway, Carlisle, Crittenden, Fulton, Graves and 5 more | 4 hr |
| Apr 10, 1:50 AM EDT | Mesoscale Discussion | SPC | Ballard, Breckinridge, Butler, Caldwell, Calloway, Carlisle and 26 more | 85 min |
| Apr 10, 2:22 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Barren, Breckinridge, Bullitt, Butler, Caldwell and 23 more | 4 hr |
| Apr 10, 4:33 AM EDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Breckinridge, Bullitt, Butler and 28 more | 57 min |
| Apr 10, 9:22 AM EDT | Mesoscale Discussion | SPC | Calloway, Marshall, Todd, Trigg | 83 min |
| Apr 10, 9:53 AM EDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 64 more | 7 hr |
| Apr 10, 11:30 AM EDT | Mesoscale Discussion | SPC | Anderson, Bourbon, Boyle, Breckinridge, Bullitt, Clark and 14 more | 60 min |
| Apr 10, 12:14 PM EDT | Mesoscale Discussion | SPC | Allen, Calloway, Christian, Logan, Lyon, Marshall and 4 more | 76 min |
| Apr 10, 2:26 PM EDT | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 87 more | 64 min |
| Apr 10, 3:56 PM EDT | Mesoscale Discussion | SPC | Breathitt, Clark, Elliott, Estill, Floyd, Jackson and 12 more | 64 min |
| Apr 10, 4:06 PM EDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Breckinridge, Bullitt, Edmonson and 15 more | 54 min |
| Apr 10, 4:42 PM EDT | Mesoscale Discussion | SPC | Breathitt, Clay, Elliott, Floyd, Harlan, Johnson and 14 more | 63 min |
| Apr 10, 7:53 PM EDT | Mesoscale Discussion | SPC | Harlan, Letcher | 67 min |
| Apr 9, 11:48 PM EDT | Tornado Watch | SPC | Crockett, Dyer, Fayette, Gibson, Haywood, Lake and 4 more | 4 hr |
| Apr 10, 2:24 AM EDT | Mesoscale Discussion | SPC | Hardeman, Hardin, McNairy | 96 min |
| Apr 10, 12:23 PM EDT | Tornado Watch | SPC | Anderson, Bedford, Bledsoe, Blount, Bradley, Campbell and 43 more | 8 hr |
| Apr 10, 1:58 PM EDT | Mesoscale Discussion | SPC | Bedford, Cannon, Coffee, DeKalb, Franklin, Giles and 17 more | 92 min |
| Apr 10, 4:43 PM EDT | Mesoscale Discussion | SPC | Polk | 92 min |
Nearby
Tornado Watches in Kentucky, 2009Tornado Watches in Tennessee, 2009Tornado Watches in Virginia, 2009Every tornado watch in 2009
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.