Alert archive / Kentucky / Tornado Watches in 2011
Tornado Watch 224
The Storm Prediction Center issued this tornado watch at Apr 26, 2011, 9:58 PM CDT for 5 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2011, 9:58 PM CDT (02:58 UTC)
- Expired
- Apr 27, 2011, 5:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 119 counties
Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Jackson County, AR, Lee County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Poinsett County, AR, Prairie County, AR, St. Francis County, AR, White County, AR, Woodruff County, AR, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Calloway County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Fulton County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY, Dunklin County, MO, Pemiscot County, MO, DeSoto County, MS, Tunica County, MS, Bedford County, TN, Benton County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Shelby County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Tipton County, TN, Trousdale County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN, Wilson County, TN
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
60 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 10:00 PM CDT | Severe Thunderstorm Warning | MEG | Craighead, Greene, Mississippi | 27 min |
| Apr 26, 10:04 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto | 56 min |
| Apr 26, 10:16 PM CDT | Tornado Warning | OHX | Hickman, Lewis, Perry, Wayne | 59 min |
| Apr 26, 10:17 PM CDT | Tornado Warning | MEG | Decatur, Hardin | 28 min |
| Apr 26, 10:20 PM CDT | Severe Thunderstorm Warning | LMK | Shelby, Spencer | 40 min |
| Apr 26, 10:23 PM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, Haywood, Madison, Tipton | 4 hr |
| Apr 26, 10:26 PM CDT | Severe Thunderstorm Warning | MEG | Chester, Hardeman, McNairy | 16 min |
| Apr 26, 10:27 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto, Marshall, Tate | 48 min |
| Apr 26, 10:27 PM CDT | Severe Thunderstorm Warning | OHX | Benton, Dickson, Hickman, Houston, Humphreys, Perry and 1 more | 33 min |
| Apr 26, 10:31 PM CDT | Severe Thunderstorm Warning | LMK | Ohio | 29 min |
| Apr 26, 10:38 PM CDT | Tornado Warning | OHX | Hickman, Perry | 37 min |
| Apr 26, 10:44 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Lee, Phillips | 46 min |
| Apr 26, 10:48 PM CDT | Tornado Warning | OHX | Dickson, Hickman, Houston, Humphreys | 27 min |
| Apr 26, 10:49 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Edmonson, Grayson | 26 min |
| Apr 26, 10:53 PM CDT | Severe Thunderstorm Warning | MEG | Decatur | 22 min |
| Apr 26, 11:00 PM CDT | Flash Flood Warning | LZK | Arkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 17 more | 6 hr |
| Apr 26, 11:02 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Hancock, Ohio | 28 min |
| Apr 26, 11:04 PM CDT | Severe Thunderstorm Warning | OHX | Benton, Hickman, Humphreys, Perry | 41 min |
| Apr 26, 11:08 PM CDT | Severe Thunderstorm Warning | MEG | Fayette, Hardeman, Haywood | 52 min |
| Apr 26, 11:09 PM CDT | Flash Flood Warning | OHX | Perry | 3 hr |
| Apr 26, 11:13 PM CDT | Flash Flood Warning | LMK | Hancock, Ohio | 9 hr |
| Apr 26, 11:13 PM CDT | Tornado Warning | MEG | DeSoto, Marshall, Panola, Tate | 47 min |
| Apr 26, 11:14 PM CDT | Severe Thunderstorm Warning | OHX | Dickson, Hickman, Humphreys, Perry | 46 min |
| Apr 26, 11:17 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Grayson | 28 min |
| Apr 26, 11:18 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Desha, Jefferson, Lincoln, Monroe | 42 min |
| Apr 26, 11:18 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Dickson, Houston, Humphreys, Montgomery | 42 min |
| Apr 26, 11:22 PM CDT | Tornado Warning | OHX | Dickson, Houston, Montgomery | 23 min |
| Apr 26, 11:23 PM CDT | Severe Thunderstorm Warning | LMK | Henry | 37 min |
| Apr 26, 11:29 PM CDT | Flash Flood Warning | MEG | Crittenden, Cross, Lee, Phillips, St. Francis | 6 hr |
| Apr 26, 11:31 PM CDT | Tornado Warning | OHX | Dickson, Montgomery | 29 min |
| Apr 26, 11:32 PM CDT | Flash Flood Warning | LMK | Breckinridge, Grayson, Hardin, Meade | 9 hr |
| Apr 26, 11:41 PM CDT | Severe Thunderstorm Warning | LMK | Butler, Logan | 34 min |
| Apr 26, 11:42 PM CDT | Severe Thunderstorm Warning | OHX | Benton, Dickson, Hickman, Humphreys | 27 min |
| Apr 26, 11:44 PM CDT | Tornado Warning | PAH | Todd | 27 min |
| Apr 26, 11:53 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Dickson, Houston, Humphreys, Montgomery, Robertson | 55 min |
| Apr 26, 11:56 PM CDT | Severe Thunderstorm Warning | MEG | Fayette, Hardeman | 49 min |
| Apr 27, 12:00 AM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Desha, Monroe | 30 min |
| Apr 27, 12:03 AM CDT | Severe Thunderstorm Warning | MEG | Chester, Crockett, Hardeman, Henderson, McNairy, Madison | 42 min |
| Apr 27, 12:15 AM CDT | Severe Thunderstorm Warning | LMK | Butler, Logan | 30 min |
| Apr 27, 12:28 AM CDT | Tornado Warning | MEG | Hardeman, McNairy | 32 min |
| Apr 27, 12:34 AM CDT | Flash Flood Warning | LMK | Bullitt, Hardin, Jefferson, Oldham, Trimble | 3 hr |
| Apr 27, 12:38 AM CDT | Flash Flood Warning | LMK | Butler, Edmonson, Logan, Simpson, Warren | 3 hr |
| Apr 27, 12:42 AM CDT | Severe Thunderstorm Warning | OHX | Rutherford | 16 min |
| Apr 27, 12:45 AM CDT | Severe Thunderstorm Warning | MEG | Chester, Hardeman, McNairy | 24 min |
| Apr 27, 1:23 AM CDT | Severe Thunderstorm Warning | LMK | Edmonson, Grayson, Hardin | 22 min |
| Apr 27, 1:23 AM CDT | Severe Thunderstorm Warning | PAH | Christian, Todd | 37 min |
| Apr 27, 1:43 AM CDT | Severe Thunderstorm Warning | OHX | Benton, Hickman, Humphreys, Perry | 32 min |
| Apr 27, 1:46 AM CDT | Tornado Warning | OHX | Hickman, Humphreys, Perry | 15 min |
| Apr 27, 1:49 AM CDT | Severe Thunderstorm Warning | LMK | Butler, Logan, Ohio | 41 min |
| Apr 27, 2:18 AM CDT | Flash Flood Warning | OHX | Benton, Cheatham, Dickson, Hickman, Houston, Humphreys and 4 more | 4 hr |
| Apr 27, 2:24 AM CDT | Tornado Warning | MEG | McNairy | 31 min |
| Apr 27, 2:26 AM CDT | Flash Flood Warning | MEG | Chester, Decatur, Fayette, Hardeman, Hardin, Henderson and 3 more | 4 hr |
| Apr 27, 3:13 AM CDT | Severe Thunderstorm Warning | MEG | McNairy | 47 min |
| Apr 27, 3:14 AM CDT | Tornado Warning | MEG | Hardin, McNairy | 46 min |
| Apr 27, 3:24 AM CDT | Flash Flood Warning | LMK | Bullitt, Jefferson, Oldham, Trimble | 5 hr |
| Apr 27, 3:27 AM CDT | Flash Flood Warning | LMK | Butler, Edmonson, Logan, Simpson, Warren | 5 hr |
| Apr 27, 3:48 AM CDT | Tornado Warning | MEG | Hardin | 18 min |
| Apr 27, 4:07 AM CDT | Severe Thunderstorm Warning | OHX | Wayne | 23 min |
| Apr 27, 4:11 AM CDT | Severe Thunderstorm Warning | OHX | Wayne | 34 min |
| Apr 27, 4:52 AM CDT | Flash Flood Warning | OHX | Benton, Cheatham, Dickson, Hickman, Houston, Humphreys and 6 more | 3 hr |
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, 3.0 hours before the alert went out and 124 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
- 1852 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1222 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 8.9
The text
As transmitted, in the capitals the NWS used until 2016.
723
WWUS20 KWNS 270259
SEL4
SPC WW 270259
ARZ000-KYZ000-MOZ000-MSZ000-TNZ000-271000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 224
NWS STORM PREDICTION CENTER NORMAN OK
1000 PM CDT TUE APR 26 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF NORTHEAST ARKANSAS
WESTERN KENTUCKY
SMALL PART OF SOUTHEAST MISSOURI
PARTS OF NORTHWEST MISSISSIPPI
MUCH OF WESTERN AND MIDDLE TENNESSEE
EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1000 PM
UNTIL 500 AM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 70 MILES NORTH OF CROSSVILLE
TENNESSEE TO 25 MILES WEST NORTHWEST OF PINE BLUFF ARKANSAS. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 217...TORNADO WATCH NUMBER 221. WATCH NUMBER 217 221
WILL NOT BE IN EFFECT AFTER 1000 PM CDT. CONTINUE...WW 215...WW
218...WW 219...WW 222...WW 223...
DISCUSSION...WITH EXPECTED INTENSIFYING LOW LEVEL JET AND
ACCOMPANYING AVAILABLE UNSTABLE AIR MASS THE POTENTIAL FOR
SUPERCELLS WILL CONTINUE MUCH OF THE NIGHT. IN ADDITION TO DAMAGING
WINDS AND LARGE HAIL...TORNADOES WILL BE POSSIBLE WITH ANY
SUPERCELL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...HALESSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:59 PM CDT | Mesoscale Discussion | SPC | Chicot | 2 hr |
| Apr 26, 8:53 PM CDT | Mesoscale Discussion | SPC | Calhoun, Clark, Columbia, Dallas, Grant, Hempstead and 10 more | 97 min |
| Apr 26, 9:13 PM CDT | Mesoscale Discussion | SPC | Arkansas, Clay, Craighead, Crittenden, Cross, Desha and 21 more | 62 min |
| Apr 26, 9:33 PM CDT | Tornado Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 11 more | 7 hr |
| Apr 26, 11:33 PM CDT | Mesoscale Discussion | SPC | Chicot, Desha, Phillips | 117 min |
| Apr 27, 3:29 AM CDT | Mesoscale Discussion | SPC | Hempstead, Lafayette, Little River, Miller | 2 hr |
| Apr 27, 4:53 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 19 more | 5 hr |
| Apr 27, 6:25 AM CDT | Mesoscale Discussion | SPC | Arkansas, Cleburne, Crittenden, Cross, Desha, Faulkner and 15 more | 65 min |
| Apr 27, 8:40 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clay, Cleburne and 28 more | 65 min |
| Apr 27, 9:48 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Clark, Cleveland and 10 more | 27 min |
| Apr 27, 11:02 AM CDT | Tornado Watch | SPC | Ashley, Chicot | 8 hr |
| Apr 27, 12:42 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Clay, Cleburne, Conway, Craighead, Crittenden and 19 more | 5 hr |
| Apr 27, 3:06 PM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Greene, Mississippi, Poinsett | 54 min |
| Apr 27, 3:29 PM CDT | Tornado Watch | SPC | Mississippi | 5 hr |
| Apr 26, 8:35 PM CDT | Mesoscale Discussion | SPC | Breckinridge, Bullitt, Daviess, Hancock, Hardin, Henderson and 4 more | 55 min |
| Apr 27, 4:33 AM CDT | Mesoscale Discussion | SPC | Adair, Barren, Boyle, Casey, Clinton, Cumberland and 12 more | 57 min |
| Apr 27, 5:07 AM CDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 28 more | 5 hr |
| Apr 27, 7:34 AM CDT | Tornado Watch | SPC | Bath, Bell, Breathitt, Clay, Elliott, Estill and 21 more | 4 hr |
| Apr 27, 8:39 AM CDT | Mesoscale Discussion | SPC | Boyd, Carter, Greenup, Lewis | 66 min |
| Apr 27, 2:22 PM CDT | Mesoscale Discussion | SPC | Bell, Breathitt, Clay, Floyd, Harlan, Jackson and 11 more | 83 min |
| Apr 27, 4:38 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 90 more | 37 min |
| Apr 27, 4:44 PM CDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 92 more | 7 hr |
| Apr 27, 5:27 PM CDT | Mesoscale Discussion | SPC | Crittenden, Daviess, Henderson, Trimble, Union, Webster | 63 min |
| Apr 27, 6:22 PM CDT | Tornado Watch | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 6 more | 8 hr |
| Apr 27, 1:56 AM CDT | Mesoscale Discussion | SPC | Clarke, Copiah, Covington, Jasper, Jefferson Davis, Kemper and 11 more | 64 min |
| Apr 27, 2:26 AM CDT | Tornado Watch | SPC | Adams, Alcorn, Attala, Calhoun, Chickasaw, Choctaw and 38 more | 6 hr |
| Apr 27, 8:08 AM CDT | Tornado Watch | SPC | Alcorn, Calhoun, Carroll, Chickasaw, Choctaw, Clay and 16 more | 6 hr |
| Apr 27, 10:45 AM CDT | Mesoscale Discussion | SPC | Adams, Attala, Benton, Calhoun, Carroll, Chickasaw and 53 more | 90 min |
| Apr 27, 1:42 PM CDT | Tornado Watch | SPC | Greene, Perry, Wayne | 8 hr |
| Apr 27, 2:56 PM CDT | Mesoscale Discussion | SPC | Alcorn, Attala, Calhoun, Chickasaw, Choctaw, Clarke and 35 more | 2 hr |
| Apr 27, 5:01 PM CDT | Mesoscale Discussion | SPC | Attala, Chickasaw, Choctaw, Clarke, Clay, Covington and 26 more | 89 min |
| Apr 27, 6:27 PM CDT | Mesoscale Discussion | SPC | Clarke, Clay, Copiah, Covington, Forrest, Jasper and 22 more | 33 min |
| Apr 27, 6:42 PM CDT | Tornado Watch | SPC | Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 13 more | 3 hr |
| Apr 27, 10:27 AM CDT | Tornado Watch | SPC | Anderson, Bedford, Bledsoe, Blount, Bradley, Cannon and 29 more | 6 hr |
| Apr 27, 11:39 AM CDT | Mesoscale Discussion | SPC | Bledsoe, Blount, Bradley, Cannon, Coffee, DeKalb and 16 more | 66 min |
| Apr 27, 12:08 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Cheatham, Chester, Crockett, Decatur and 21 more | 67 min |
| Apr 27, 1:03 PM CDT | Mesoscale Discussion | SPC | Bledsoe, Blount, Bradley, Grundy, Hamilton, Loudon and 10 more | 57 min |
| Apr 27, 1:05 PM CDT | Mesoscale Discussion | SPC | Franklin, Giles, Lawrence, Lincoln, Marshall, Maury and 1 more | 85 min |
| Apr 27, 3:36 PM CDT | Tornado Watch | SPC | Anderson, Bedford, Benton, Bledsoe, Blount, Bradley and 66 more | 8 hr |
| Apr 27, 5:38 PM CDT | Mesoscale Discussion | SPC | Anderson, Bedford, Bledsoe, Blount, Bradley, Cannon and 36 more | 97 min |
Nearby
Tornado Watches in Kentucky, 2011Tornado Watches in Tennessee, 2011Tornado Watches in Arkansas, 2011Every tornado 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.