Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 32, NWS Louisville, KY

December 11, 20214 counties in Kentucky

NWS Louisville, KY issued this tornado warning at Dec 11, 2021, 5:52 AM EST for 4 counties in Kentucky. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Dec 11, 2021, 5:52 AM EST (10:52 UTC)
Expired
Dec 11, 2021, 6:15 AM EST
In force
23 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Casey County, KY, Clinton County, KY, Cumberland County, KY, Russell County, KY

The radar

The Louisville radar (KLVX), 137 km from the middle of the area, began a volume at 10:55 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Dec 11, 2:27 AM ESTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.9 hours before the alert went out and 167 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, Nashville Metro, TN at 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 182 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 391 square meters per square second.1939587897Sfc1 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
182 J/kg
Mixed-layer CIN
-168 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
391 m²/s²
0-3 km storm-relative helicity
370 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

419 
WFUS53 KLMK 111052
TORLMK
KYC045-053-057-207-111115-
/O.NEW.KLMK.TO.W.0032.211211T1052Z-211211T1115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Louisville KY
552 AM EST Sat Dec 11 2021

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  Northwestern Clinton County in south central Kentucky...
  Russell County in south central Kentucky...
  Northeastern Cumberland County in south central Kentucky...
  South central Casey County in central Kentucky...

* Until 615 AM EST/515 AM CST/.
    
* At 551 AM EST/451 AM CST/, a severe thunderstorm capable of
  producing a tornado was located 7 miles northeast of Burkesville,
  moving northeast at 65 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Jamestown around 505 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3684 8536 3693 8524 3693 8523 3694 8523
      3717 8491 3713 8487 3712 8490 3705 8491
      3701 8486 3700 8484 3695 8491 3696 8493
      3696 8495 3692 8496 3688 8503 3678 8531
TIME...MOT...LOC 1051Z 235DEG 56KT 3685 8525 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

KDW
1 follow-up statement
020 
WWUS53 KLMK 111110
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
610 AM EST Sat Dec 11 2021

KYC045-053-057-207-111120-
/O.EXP.KLMK.TO.W.0032.000000T0000Z-211211T1115Z/
Clinton KY-Russell KY-Cumberland KY-Casey KY-
610 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHWESTERN CLINTON...RUSSELL...
NORTHEASTERN CUMBERLAND AND SOUTH CENTRAL CASEY COUNTIES WILL EXPIRE
AT 615 AM EST/515 AM CST/...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 900 AM EST/800 AM CST/ for
south central and central Kentucky.

LAT...LON 3684 8536 3693 8524 3693 8523 3694 8523
      3717 8491 3713 8487 3712 8490 3705 8491
      3701 8486 3700 8484 3695 8491 3696 8493
      3696 8495 3692 8496 3688 8503 3678 8531
TIME...MOT...LOC 1110Z 235DEG 56KT 3702 8495 

$$

KDW

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 10, 8:20 PM ESTSpecial Weather StatementLMKOhio55 min
Dec 10, 8:48 PM ESTTornado WarningLMKOhio57 min
Dec 10, 9:04 PM ESTSpecial Weather StatementLMKBreckinridge56 min
Dec 10, 9:24 PM ESTSevere Thunderstorm WarningLMKBreckinridge, Hancock36 min
Dec 10, 9:32 PM ESTTornado WarningLMKOhio30 min
Dec 10, 10:21 PM ESTTornado WarningLMKOhio39 min
Dec 10, 10:29 PM ESTSpecial Weather StatementLMKBreckinridge31 min
Dec 10, 10:37 PM ESTTornado WarningLMKBreckinridge, Hardin, Meade17 min
Dec 10, 11:42 PM ESTTornado Warning Tornado observedConsiderable damage threatLMKOhio63 min
Dec 11, 12:07 AM ESTTornado Warning Tornado observedConsiderable damage threatLMKBreckinridge, Grayson, Hancock53 min
Dec 11, 12:51 AM ESTTornado Warning Tornado observedConsiderable damage threatLMKBreckinridge, Hardin, Meade39 min
Dec 11, 1:29 AM ESTSpecial Weather StatementLMKSpencer16 min
Dec 11, 1:30 AM ESTSpecial Weather StatementLMKBullitt15 min
Dec 11, 1:33 AM ESTSpecial Weather StatementLMKHenry, Jefferson, Oldham, Shelby, Trimble27 min
Dec 11, 1:36 AM ESTTornado Warning Tornado observedLMKLogan, Simpson39 min
Dec 11, 1:41 AM ESTSevere Thunderstorm WarningLMKBullitt, Nelson, Spencer34 min
Dec 11, 1:44 AM ESTTornado WarningLMKBullitt, Nelson, Shelby, Spencer46 min
Dec 11, 1:58 AM ESTTornado Warning Tornado observedLMKButler, Edmonson, Logan, Simpson, Warren47 min
Dec 11, 2:27 AM ESTTornado Warning Tornado observedLMKBarren, Butler, Edmonson, Hart, Metcalfe, Warren48 min
Dec 11, 2:28 AM ESTTornado WarningLMKFranklin, Scott20 min
Dec 11, 2:45 AM ESTSpecial Weather StatementLMKBullitt, Hardin, Larue, Nelson, Spencer30 min
Dec 11, 2:55 AM ESTTornado WarningLMKBarren, Green, Hart, Larue, Marion, Metcalfe and 1 more50 min
Dec 11, 3:08 AM ESTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Hardin, Jefferson, Meade115 min
Dec 11, 3:16 AM ESTSevere Thunderstorm WarningLMKAnderson, Franklin, Harrison, Henry, Nelson, Scott and 3 more29 min
Dec 11, 3:16 AM ESTSevere Thunderstorm Warning Considerable damage threatLMKButler, Logan, Simpson, Warren44 min
Dec 11, 3:22 AM ESTTornado Warning Tornado observedLMKBoyle, Casey, Larue, Lincoln, Marion, Mercer and 1 more38 min
Dec 11, 3:59 AM ESTTornado WarningLMKBoyle, Casey, Garrard, Jessamine, Lincoln, Madison and 1 more46 min
Dec 11, 4:00 AM ESTFlash Flood WarningLMKBarren, Butler, Edmonson, Green, Hart, Logan and 3 more6 hr
Dec 11, 4:10 AM ESTAreal Flood AdvisoryLMKAnderson, Bullitt, Franklin, Harrison, Jefferson, Nelson and 3 more4 hr
Dec 11, 4:13 AM ESTSevere Thunderstorm WarningLMKAllen, Barren, Butler, Edmonson, Hart, Logan and 2 more32 min
Dec 11, 4:20 AM ESTSevere Thunderstorm WarningLMKBourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 2 more25 min
Dec 11, 4:38 AM ESTSevere Thunderstorm WarningLMKClark, Madison37 min
Dec 11, 4:43 AM ESTAreal Flood AdvisoryLMKAdair, Boyle, Casey, Garrard, Green, Lincoln and 3 more4 hr
Dec 11, 4:47 AM ESTSevere Thunderstorm WarningLMKAllen, Barren, Edmonson, Grayson, Green, Hardin and 7 more28 min
Dec 11, 4:56 AM ESTFlash Flood WarningLMKBreckinridge, Bullitt, Franklin, Grayson, Hancock, Hardin and 6 more3 hr
Dec 11, 5:01 AM ESTTornado WarningLMKGarrard, Madison18 min
Dec 11, 5:18 AM ESTSevere Thunderstorm WarningLMKAdair, Allen, Barren, Casey, Cumberland, Green and 5 more42 min
Dec 11, 5:23 AM ESTTornado WarningLMKClark, Garrard, Lincoln, Madison37 min
Dec 11, 5:27 AM ESTTornado WarningLMKCumberland, Monroe33 min
Dec 11, 5:58 AM ESTSevere Thunderstorm WarningLMKAdair, Boyle, Casey, Clark, Fayette, Garrard and 6 more32 min
Dec 11, 5:58 AM ESTSevere Thunderstorm WarningLMKAdair, Boyle, Casey, Green, Lincoln, Marion and 2 more32 min
Dec 11, 6:28 AM ESTSevere Thunderstorm WarningLMKClark, Garrard, Lincoln, Madison32 min
Dec 11, 8:42 AM ESTAreal Flood WarningLMKGarrard, Lincoln, Madison3 hr
Dec 11, 10:18 AM ESTSpecial Weather StatementLMKAnderson, Franklin, Henry, Nelson, Shelby, Spencer and 1 more27 min
Dec 11, 11:10 AM ESTSpecial Weather StatementLMKAnderson, Bourbon, Clark, Fayette, Harrison, Jessamine and 6 more65 min

Nearby

Tornado Warnings in Kentucky, 2021Every tornado warning in 2021Tornadoes in 2021

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.