Alert archive / Kentucky / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 324
The Storm Prediction Center issued this severe thunderstorm watch at May 22, 2011, 1:18 PM CDT for 7 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 22, 2011, 1:18 PM CDT (18:18 UTC)
- Expired
- May 22, 2011, 8:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 201 counties
Colbert County, AL, Cullman County, AL, DeKalb County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Winston County, AL, Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Gilmer County, GA, Gordon County, GA, Lumpkin County, GA, Murray County, GA, Pickens County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA, Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Scott County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Bourbon County, KY, Boyle County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harlan County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, McCreary County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Cherokee County, NC, Clay County, NC, Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Cannon County, TN, Carter County, TN, Cheatham County, TN, Claiborne County, TN, Clay County, TN, Cocke County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grainger County, TN, Greene County, TN, Grundy County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Hickman County, TN, Jackson County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Loudon County, TN, Macon County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Morgan County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Polk County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Robertson County, TN, Rutherford County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Smith County, TN, Sullivan County, TN, Sumner County, TN, Trousdale County, TN, Unicoi County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Washington County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN, City of Norton, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA
The radar
The Nashville radar (KOHX), 87 km from the middle of the area, began a volume at 18:17 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
42 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 1:21 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 24 min |
| May 22, 1:31 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 29 min |
| May 22, 1:33 PM CDT | Severe Thunderstorm Warning | LMK | Butler, Edmonson, Grayson | 27 min |
| May 22, 1:39 PM CDT | Severe Thunderstorm Warning | LMK | Barren, Green, Hart, Metcalfe | 51 min |
| May 22, 1:55 PM CDT | Severe Thunderstorm Warning | LMK | Grayson, Hardin | 17 min |
| May 22, 1:56 PM CDT | Severe Thunderstorm Warning | LMK | Adair, Barren, Green, Metcalfe | 34 min |
| May 22, 1:58 PM CDT | Severe Thunderstorm Warning | OHX | DeKalb, Putnam, Warren, White | 32 min |
| May 22, 2:00 PM CDT | Severe Thunderstorm Warning | LMK | Perry | 30 min |
| May 22, 2:00 PM CDT | Severe Thunderstorm Warning | JKL | Elliott | 30 min |
| May 22, 2:15 PM CDT | Severe Thunderstorm Warning | JKL | Clay, Jackson, Laurel, Lee, Owsley, Rockcastle | 45 min |
| May 22, 2:22 PM CDT | Severe Thunderstorm Warning | JKL | Bell, Knox, McCreary, Whitley | 38 min |
| May 22, 2:25 PM CDT | Severe Thunderstorm Warning | LMK | Adair, Cumberland, Russell | 35 min |
| May 22, 2:29 PM CDT | Severe Thunderstorm Warning | LMK | Crawford, Harrison, Perry | 31 min |
| May 22, 2:40 PM CDT | Severe Thunderstorm Warning | JKL | Clay, Knox, Laurel, Leslie, Owsley | 35 min |
| May 22, 2:50 PM CDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea, Roane | 55 min |
| May 22, 2:54 PM CDT | Severe Thunderstorm Warning | LMK | Casey | 36 min |
| May 22, 2:57 PM CDT | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Jackson, Lee, Leslie, Owsley and 2 more | 33 min |
| May 22, 3:01 PM CDT | Severe Thunderstorm Warning | LMK | Crawford, Orange, Washington | 29 min |
| May 22, 3:06 PM CDT | Severe Thunderstorm Warning | MRX | Anderson, Morgan, Scott | 24 min |
| May 22, 3:14 PM CDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 31 min |
| May 22, 3:15 PM CDT | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Knott, Knox, Laurel, Leslie and 3 more | 45 min |
| May 22, 3:16 PM CDT | Severe Thunderstorm Warning | JKL | Laurel, McCreary, Pulaski, Wayne | 29 min |
| May 22, 3:23 PM CDT | Severe Thunderstorm Warning | LMK | Lincoln | 22 min |
| May 22, 3:28 PM CDT | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Morgan, Scott | 62 min |
| May 22, 3:45 PM CDT | Severe Thunderstorm Warning | MRX | Bradley, Loudon, McMinn, Meigs, Monroe, Roane | 60 min |
| May 22, 3:47 PM CDT | Severe Thunderstorm Warning | LMK | Garrard, Madison | 35 min |
| May 22, 3:51 PM CDT | Severe Thunderstorm Warning | JKL | Breathitt, Clay, Knott, Magoffin, Owsley, Perry and 1 more | 32 min |
| May 22, 3:53 PM CDT | Severe Thunderstorm Warning | MRX | Blount, Monroe | 67 min |
| May 22, 3:55 PM CDT | Severe Thunderstorm Warning | JKL | Clay, Jackson, Knox, Laurel, Owsley, Pulaski and 2 more | 50 min |
| May 22, 3:59 PM CDT | Severe Thunderstorm Warning | JKL | Breathitt, Floyd, Johnson, Magoffin, Martin | 46 min |
| May 22, 4:07 PM CDT | Severe Thunderstorm Warning | MRX | Anderson, Knox, Union | 53 min |
| May 22, 4:23 PM CDT | Severe Thunderstorm Warning | MRX | Greene | 52 min |
| May 22, 4:36 PM CDT | Severe Thunderstorm Warning | MRX | Sevier | 54 min |
| May 22, 4:47 PM CDT | Severe Thunderstorm Warning | MRX | Grainger, Hamblen, Jefferson | 58 min |
| May 22, 5:00 PM CDT | Severe Thunderstorm Warning | MRX | Blount | 25 min |
| May 22, 5:02 PM CDT | Severe Thunderstorm Warning | MRX | Cocke | 58 min |
| May 22, 5:44 PM CDT | Severe Thunderstorm Warning | MRX | Greene, Hawkins | 61 min |
| May 22, 5:48 PM CDT | Severe Thunderstorm Warning | MRX | Scott, Wise, City of Norton | 57 min |
| May 22, 6:00 PM CDT | Severe Thunderstorm Warning | MRX | Scott | 45 min |
| May 22, 6:07 PM CDT | Severe Thunderstorm Warning | MRX | Hawkins, Sullivan, Washington | 53 min |
| May 22, 6:22 PM CDT | Severe Thunderstorm Warning | MRX | Russell, Washington, City of Bristol | 53 min |
| May 22, 7:15 PM CDT | Severe Thunderstorm Warning | MRX | Washington | 13 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 12:00Z, 6.3 hours before the alert went out and 85 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
- 1543 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1025 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 12:55 PM CDT | Mesoscale Discussion | SPC | Cullman, DeKalb, Jackson, Lawrence, Limestone, Madison and 2 more | 65 min |
| May 22, 1:51 PM CDT | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 37 more | 54 min |
| May 22, 2:04 PM CDT | Tornado Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 9 hr |
| May 22, 2:15 PM CDT | Mesoscale Discussion | SPC | Steuben | 60 min |
| May 22, 4:16 PM CDT | Mesoscale Discussion | SPC | Allen, Benton, Boone, Carroll, Cass, Clinton and 30 more | 119 min |
| May 22, 4:32 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Blackford, Carroll, Cass, Clinton and 27 more | 7 hr |
| May 22, 3:44 PM CDT | Mesoscale Discussion | SPC | Bath, Bell, Bourbon, Boyd, Bracken, Breathitt and 44 more | 61 min |
| May 22, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | Boyd, Carter, Greenup, Lawrence | 5 hr |
| May 22, 6:26 PM CDT | Mesoscale Discussion | SPC | Boyd, Carter, Elliott, Floyd, Greenup, Johnson and 4 more | 2 hr |
| May 22, 5:18 AM CDT | Mesoscale Discussion | SPC | Crockett, Dyer, Fayette, Hardeman, Haywood, Lake and 3 more | 57 min |
| May 22, 7:03 AM CDT | Severe Thunderstorm Watch | SPC | Chester, Crockett, Decatur, Fayette, Hardeman, Hardin and 7 more | 7 hr |
| May 22, 1:09 PM CDT | Mesoscale Discussion | SPC | Chester, Fayette, Hardeman, Hardin, Haywood, McNairy and 3 more | 66 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2011Severe Thunderstorm Watches in Tennessee, 2011Severe Thunderstorm Watches in Georgia, 2011Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.