Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 22, NWS Louisville, KY

December 11, 20214 counties in Kentucky

NWS Louisville, KY issued this tornado warning at Dec 11, 2021, 1:44 AM EST for 4 counties in Kentucky. It was in force for 46 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Dec 11, 2021, 1:44 AM EST (06:44 UTC)
Expired
Dec 11, 2021, 2:30 AM EST
In force
46 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Bullitt County, KY, Nelson County, KY, Shelby County, KY, Spencer County, KY

The radar

The Louisville radar (KLVX), 59 km from the middle of the area, began a volume at 06:44 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 was reported inside it

TimeReportWhereRemark
Dec 11, 1:50 AM ESTTSTM WND DMG2 Nnw Highgrove, KYSOCIAL MEDIA PICTURES SHOWS STRUCTURAL DAMAGE TO TWO DIFFERENT BUILDINGS, TREES BLOWN ACROSS OLD LOUISVILLE ROAD. TIME ESTIMATED BY RADAR.
Dec 11, 1:51 AM ESTTORNADO3 Nnw Highgrove, KY...CORRECTS PREVIOUS TORNADO REPORT FROM 3 NNW HIGHGROVE... AN EF-1 TORNADO OCCURRED 3 SE MOUNT WASHINGTON, KY. THE TORNADO HAD A MAX PATH WIDTH OF 100 YARDS AND A LENGTH OF 1.5 MILES. THE MAX WIND SPEEDS WERE 95 MPH, AND THE TORNADO LIFTED 4 MILE SE OF MOUNT
Dec 11, 1:51 AM ESTTORNADO3 Nnw Highgrove, KYCORRECTS PREVIOUS TORNADO REPORT FROM 3 NNW HIGHGROVE. AN EF-1 TORNADO OCCURRED 3 SE MOUNT WASHINGTON, KY. THE TORNADO HAD A MAX PATH WIDTH OF 100 YARDS AND A LENGTH OF 1.5 MILES. THE MAX WIND SPEEDS WERE 95 MPH, AND THE TORNADO LIFTED 4 MILE SE OF MOUNT WASHI
Dec 11, 1:51 AM ESTTORNADO3 Se Mount Washington, KYAN EF-1 TORNADO OCCURRED 3 SE MOUNT WASHINGTON, KY. THE TORNADO HAD A MAX PATH WIDTH OF 1.5 MILES AND A LENGTH OF 100 YARDS. THE MAX WIND SPEEDS WERE 95 MPH, AND THE TORNADO LIFTED 4 MILE SE OF MOUNT WASHINGTON, KY. PLEASE SEE ASSOCIATED PNS FOR MORE DETAILS R

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Dec 10, 7:21 PM ESTTornado WatchSPC10 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.7 hours before the alert went out and 196 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, Cncnati-Daytn, OH at 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
519 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
325 m²/s²
0-3 km storm-relative helicity
431 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

162 
WFUS53 KLMK 110644
TORLMK
KYC029-179-211-215-110730-
/O.NEW.KLMK.TO.W.0022.211211T0644Z-211211T0730Z/

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

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  Spencer County in central Kentucky...
  Southern Shelby County in central Kentucky...
  Northern Nelson County in central Kentucky...
  Northeastern Bullitt County in central Kentucky...

* Until 230 AM EST.
    
* At 144 AM EST, a severe thunderstorm capable of producing a tornado
  was located near Shepherdsville, moving northeast at 55 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...
  Taylorsville around 200 AM EST.

Other locations in the path of this tornadic thunderstorm include
Shelbyville.

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 3826 8513 3810 8505 3807 8505 3804 8508
      3803 8510 3793 8562 3801 8567 3811 8545
      3812 8543 3813 8542
TIME...MOT...LOC 0644Z 246DEG 48KT 3798 8560 

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

$$

DM
4 follow-up statements
226 
WWUS53 KLMK 110652
SVSLMK

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

KYC179-110702-
/O.CAN.KLMK.TO.W.0022.000000T0000Z-211211T0730Z/
Nelson KY-
152 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHERN NELSON COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 300 AM EST for central
Kentucky.

LAT...LON 3826 8513 3810 8505 3807 8505 3804 8508
      3803 8511 3797 8543 3797 8546 3799 8549
      3798 8550 3805 8555 3813 8542
TIME...MOT...LOC 0652Z 246DEG 48KT 3803 8547 

$$

KYC029-211-215-110730-
/O.CON.KLMK.TO.W.0022.000000T0000Z-211211T0730Z/
Spencer KY-Shelby KY-Bullitt KY-
152 AM EST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 AM EST FOR
SPENCER...SOUTHERN SHELBY AND NORTHEASTERN BULLITT COUNTIES...
        
At 152 AM EST, a confirmed tornado was located near Taylorsville,
moving northeast at 55 mph.

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

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 tornado will be near...
  Shelbyville around 215 AM EST.

Other locations impacted by this tornadic thunderstorm include Yoder,
Waterford, Southville, Rivals, Smithville, Elk Creek, Wilsonville,
Olive Branch, Veachland and Veech.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 3826 8513 3810 8505 3807 8505 3804 8508
      3803 8511 3797 8543 3797 8546 3799 8549
      3798 8550 3805 8555 3813 8542
TIME...MOT...LOC 0652Z 246DEG 48KT 3803 8547 

TORNADO...OBSERVED
HAIL...<.75IN

$$

DM
213 
WWUS53 KLMK 110700
SVSLMK

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

KYC029-211-215-110730-
/O.CON.KLMK.TO.W.0022.000000T0000Z-211211T0730Z/
Spencer KY-Shelby KY-Bullitt KY-
200 AM EST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 AM EST FOR
SPENCER...SOUTHERN SHELBY AND NORTHEASTERN BULLITT COUNTIES...
    
At 200 AM EST, a severe thunderstorm capable of producing a tornado
was located near Taylorsville, moving northeast at 55 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...
  Shelbyville around 210 AM EST.

Other locations impacted by this tornadic thunderstorm include Yoder,
Waterford, Southville, Rivals, Smithville, Elk Creek, Wilsonville,
Olive Branch, Veachland and Veech.

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 3826 8513 3810 8505 3807 8505 3804 8508
      3803 8511 3797 8543 3797 8546 3799 8549
      3798 8550 3805 8555 3813 8542
TIME...MOT...LOC 0700Z 246DEG 48KT 3808 8534 

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

$$

DM
420 
WWUS53 KLMK 110715
SVSLMK

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

KYC029-110725-
/O.CAN.KLMK.TO.W.0022.000000T0000Z-211211T0730Z/
Bullitt KY-
215 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHEASTERN BULLITT COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 300 AM EST for central
Kentucky.

LAT...LON 3800 8530 3809 8536 3820 8510 3810 8505
      3807 8505 3804 8508 3803 8511 3800 8525
TIME...MOT...LOC 0715Z 255DEG 40KT 3811 8515 

$$

KYC211-215-110730-
/O.CON.KLMK.TO.W.0022.000000T0000Z-211211T0730Z/
Spencer KY-Shelby KY-
215 AM EST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 AM EST FOR
NORTHEASTERN SPENCER AND SOUTHEASTERN SHELBY COUNTIES...
    
At 215 AM EST, a severe thunderstorm capable of producing a tornado
was located 8 miles southeast of Shelbyville, moving east at 45 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 tornadic thunderstorm will remain over mainly rural areas of
northeastern Spencer and southeastern Shelby Counties, including the
following locations... Southville, Rivals, Harrisonville, Hooper,
Waddy, Clay Village, Hemp Ridge, Little Mount, Junte and Olive
Branch.

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 3800 8530 3809 8536 3820 8510 3810 8505
      3807 8505 3804 8508 3803 8511 3800 8525
TIME...MOT...LOC 0715Z 255DEG 40KT 3811 8515 

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

$$

DM
824 
WWUS53 KLMK 110724
SVSLMK

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

KYC211-215-110734-
/O.EXP.KLMK.TO.W.0022.000000T0000Z-211211T0730Z/
Spencer KY-Shelby KY-
224 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHEASTERN SPENCER AND SOUTHEASTERN
SHELBY COUNTIES WILL EXPIRE AT 230 AM EST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 300 AM EST for central
Kentucky.

LAT...LON 3800 8530 3809 8536 3820 8510 3810 8505
      3807 8505 3804 8508 3803 8511 3800 8525
TIME...MOT...LOC 0724Z 246DEG 48KT 3816 8501 

$$

DM

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, 1:58 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, 5:52 AM ESTTornado WarningLMKCasey, Clinton, Cumberland, Russell23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.