Alert archive / Kentucky / Tornado Watches in 2006

Tornado Watch 795

September 23, 20064 states

The Storm Prediction Center issued this tornado watch at Sep 23, 2006, 12:59 AM CDT for 4 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Sep 23, 2006, 12:59 AM CDT (05:59 UTC)
Expired
Sep 23, 2006, 9:00 AM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 107 counties

Baxter County, AR, Boone County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Marion County, AR, Mississippi County, AR, Newton County, AR, Pope County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Adair County, KY, Allen County, KY, Ballard County, KY, Barren County, KY, Boyle County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fulton County, KY, Garrard County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Hart County, KY, Hickman County, KY, Hopkins County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Madison County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, McCreary County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Butler County, MO, Carter County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO, Benton County, TN, Carroll County, TN, Cheatham County, TN, Clay County, TN, Crockett County, TN, Dickson County, TN, Dyer County, TN, Fentress County, TN, Gibson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lake County, TN, Lauderdale County, TN, Macon County, TN, Montgomery County, TN, Obion County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 94 km from the middle of the area, began a volume at 05:59 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
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

44 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Sep 23, 1:05 AM CDTFlash Flood WarningPAHCalloway, Carlisle, Fulton, Graves, Hickman, Marshall6 hr
Sep 23, 1:25 AM CDTFlash Flood WarningMEGRandolph3 hr
Sep 23, 1:25 AM CDTFlash Flood WarningLMKEdmonson2 hr
Sep 23, 1:38 AM CDTFlash Flood WarningLZKFulton, Sharp4 hr
Sep 23, 1:50 AM CDTFlash Flood WarningPAHButler, Ripley, Stoddard4 hr
Sep 23, 2:06 AM CDTSevere Thunderstorm WarningLZKJohnson39 min
Sep 23, 2:22 AM CDTSevere Thunderstorm WarningLZKBaxter38 min
Sep 23, 2:22 AM CDTFlash Flood WarningPAHChristian, Todd, Trigg6 hr
Sep 23, 2:23 AM CDTFlash Flood WarningMEGClay, Randolph5 hr
Sep 23, 2:30 AM CDTSevere Thunderstorm WarningLMKAdair30 min
Sep 23, 2:40 AM CDTSevere Thunderstorm WarningLMKRussell35 min
Sep 23, 2:44 AM CDTSevere Thunderstorm WarningLZKJohnson31 min
Sep 23, 2:46 AM CDTFlash Flood WarningLMKWarren119 min
Sep 23, 2:53 AM CDTSevere Thunderstorm WarningLZKPope67 min
Sep 23, 2:55 AM CDTFlash Flood WarningLMKLogan2 hr
Sep 23, 3:01 AM CDTFlash Flood WarningLMKMadison119 min
Sep 23, 3:06 AM CDTSevere Thunderstorm WarningOHXStewart24 min
Sep 23, 3:37 AM CDTSevere Thunderstorm WarningJKLPulaski, Wayne23 min
Sep 23, 3:44 AM CDTSevere Thunderstorm WarningOHXMontgomery31 min
Sep 23, 3:59 AM CDTFlash Flood WarningMEGPemiscot4 hr
Sep 23, 4:00 AM CDTTornado WarningOHXMontgomery14 min
Sep 23, 4:05 AM CDTTornado WarningOHXCheatham, Robertson25 min
Sep 23, 4:16 AM CDTTornado WarningOHXRobertson29 min
Sep 23, 4:24 AM CDTSevere Thunderstorm WarningOHXRobertson36 min
Sep 23, 4:37 AM CDTTornado WarningOHXSumner23 min
Sep 23, 4:43 AM CDTSevere Thunderstorm WarningOHXSumner32 min
Sep 23, 5:01 AM CDTTornado WarningOHXSumner29 min
Sep 23, 5:26 AM CDTSevere Thunderstorm WarningOHXMacon, Trousdale49 min
Sep 23, 5:27 AM CDTFlash Flood WarningMEGHenry, Weakley3 hr
Sep 23, 5:29 AM CDTFlash Flood WarningPAHButler, Ripley4 hr
Sep 23, 5:51 AM CDTTornado WarningOHXSmith24 min
Sep 23, 6:12 AM CDTSevere Thunderstorm WarningOHXJackson33 min
Sep 23, 6:46 AM CDTFlash Flood WarningLZKBoone89 min
Sep 23, 6:57 AM CDTFlash Flood WarningOHXStewart2 hr
Sep 23, 7:00 AM CDTFlash Flood WarningMEGClay, Randolph6 hr
Sep 23, 7:04 AM CDTFlash Flood WarningLMKLogan3 hr
Sep 23, 7:09 AM CDTSevere Thunderstorm WarningLZKJohnson, Newton51 min
Sep 23, 7:23 AM CDTFlash Flood WarningMEGGreene, Lawrence6 hr
Sep 23, 7:38 AM CDTFlash Flood WarningMEGPemiscot5 hr
Sep 23, 7:57 AM CDTSevere Thunderstorm WarningLZKJohnson, Newton63 min
Sep 23, 8:15 AM CDTTornado WarningLZKJohnson, Pope45 min
Sep 23, 8:30 AM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Pope, Yell45 min
Sep 23, 8:33 AM CDTTornado WarningLZKSearcy27 min
Sep 23, 9:00 AM CDTFlash Flood WarningPAHCalloway, Carlisle, Fulton, Graves, Hickman, Marshall4 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

Little Rock, AR (KLZK), launched 00:00Z, 6.0 hours before the alert went out and 188 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.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2006-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2310 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2006-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2310 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1432 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
342 m²/s²
Significant tornado parameter
1.9
Supercell composite
14.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 230600
SEL5  
SPC WW 230600
ARZ000-KYZ000-MOZ000-TNZ000-231400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 795
NWS STORM PREDICTION CENTER NORMAN OK
100 AM CDT SAT SEP 23 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       NORTHERN ARKANSAS
       SOUTHERN AND CENTRAL KENTUCKY
       SOUTHEAST MISSOURI
       WEST AND MIDDLE TENNESSEE

EFFECTIVE THIS SATURDAY MORNING FROM 100 AM UNTIL 900 AM CDT.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE
MILES EITHER SIDE OF A LINE FROM 35 MILES SOUTH OF HARRISON
ARKANSAS TO 15 MILES NORTH OF LONDON KENTUCKY. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU5).

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 792...TORNADO WATCH NUMBER 793. WATCH NUMBER 792 793
WILL NOT BE IN EFFECT AFTER 100 AM CDT. CONTINUE...WW 794...

DISCUSSION...BANDS OF STORMS EXPECTED TO TRAIN ALONG COMPOSITE
OUTFLOW BNDRY ORIENTED WSW/ENE FROM NRN AR TO E CNTRL KY.  BNDRY
EXPECTED TO REMAIN MORE OR LESS STATIONARY THROUGH LATER THIS
MORNING.  ENVIRONMENT OF STRONG LOW TO MID LEVEL SHEAR WITH HIGH
BOUNDARY LAYER DEWPOINTS WILL PERSIST AND MAY SUPPORT EMBEDDED
ROTATING STORMS WITH ISOLATED TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 25035.


...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 22, 7:32 PM CDTMesoscale DiscussionSPCBenton, Crawford, Washington88 min
Sep 22, 8:58 PM CDTTornado WatchSPCBenton, Carroll, Crawford, Franklin, Logan, Madison and 5 more7 hr
Sep 22, 10:23 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 27 more2 hr
Sep 23, 2:12 AM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 6 more63 min
Sep 23, 3:33 AM CDTTornado WatchSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 22 more7 hr
Sep 23, 4:10 AM CDTMesoscale DiscussionSPCBaxter, Clay, Cleburne, Craighead, Fulton, Greene and 9 more2 hr
Sep 23, 7:35 AM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clark, Clay, Cleburne and 38 more85 min
Sep 23, 8:49 AM CDTTornado WatchSPCArkansas, Clay, Cleburne, Conway, Craighead, Crittenden and 30 more5 hr
Sep 23, 10:51 AM CDTMesoscale DiscussionSPCArkansas, Clark, Cleveland, Craighead, Crittenden, Cross and 28 more114 min
Sep 23, 12:17 PM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Columbia, Hempstead, Lafayette and 5 more2 hr
Sep 23, 1:37 PM CDTMesoscale DiscussionSPCArkansas, Cleveland, Crittenden, Desha, Jefferson, Lee and 5 more83 min
Sep 23, 2:08 PM CDTSevere Thunderstorm WatchSPCBradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 13 more6 hr
Sep 23, 4:19 PM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Chicot, Cleveland, Columbia and 5 more116 min
Sep 22, 7:50 PM CDTMesoscale DiscussionSPCAllen, Ballard, Breckinridge, Bullitt, Butler, Caldwell and 35 more115 min
Sep 22, 8:22 PM CDTTornado WatchSPCAdair, Allen, Anderson, Barren, Boyle, Breckinridge and 38 more5 hr
Sep 22, 10:47 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Boyle, Breckinridge and 44 more118 min
Sep 23, 11:30 AM CDTMesoscale DiscussionSPCAdair, Anderson, Bath, Boone, Bourbon, Boyd and 68 more3 hr
Sep 23, 12:13 PM CDTTornado WatchSPCAdair, Allen, Anderson, Barren, Bourbon, Boyle and 42 more8 hr
Sep 23, 3:28 PM CDTMesoscale DiscussionSPCAdair, Allen, Barren, Bath, Bell, Boyle and 35 more92 min
Sep 23, 11:53 AM CDTMesoscale DiscussionSPCAnderson, Bedford, Bledsoe, Bradley, Cannon, Clay and 38 more67 min
Sep 23, 2:59 PM CDTSevere Thunderstorm WatchSPCBenton, Chester, Decatur, Giles, Hardeman, Hardin and 10 more5 hr

Nearby

Tornado Watches in Kentucky, 2006Tornado Watches in Tennessee, 2006Tornado Watches in Arkansas, 2006Every tornado watch in 2006

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.