Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 25, NWS Louisville, KY

December 11, 2021Franklin County, Scott County, Kentucky

NWS Louisville, KY issued this tornado warning at Dec 11, 2021, 2:28 AM EST for Franklin County, Scott County, Kentucky. It was in force for 20 min. 1 report 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, 2:28 AM EST (07:28 UTC)
Expired
Dec 11, 2021, 2:48 AM EST
In force
20 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Franklin County, KY, Scott County, KY

The radar

The Louisville radar (KLVX), 125 km from the middle of the area, began a volume at 07:31 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, 2:45 AM ESTTSTM WND DMG3 Ne Stamping Ground, KYDELAYED REPORT. TREES DOWN ON ROAD AT 32 AND EAST HONAKER RD. TIME ESTIMATED FROM RADAR.

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
Dec 11, 2:27 AM ESTTornado WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.5 hours before the alert went out and 136 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.

456 
WFUS53 KLMK 110728
TORLMK
KYC073-209-110800-
/O.NEW.KLMK.TO.W.0025.211211T0728Z-211211T0800Z/

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

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  Scott County in central Kentucky...
  Northeastern Franklin County in central Kentucky...

* Until 300 AM EST.
    
* At 228 AM EST, a severe thunderstorm capable of producing a tornado
  was located over Frankfort, moving northeast at 60 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...
  Georgetown around 245 AM EST.

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 3847 8455 3845 8453 3843 8453 3842 8450
      3838 8446 3834 8446 3830 8443 3829 8444
      3819 8491 3822 8494 3834 8479 3835 8475
      3837 8471 3843 8462 3849 8456 3849 8455
TIME...MOT...LOC 0728Z 239DEG 51KT 3823 8488 

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

$$

KDW
2 follow-up statements
372 
WWUS53 KLMK 110745
SVSLMK

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

KYC073-110755-
/O.CAN.KLMK.TO.W.0025.000000T0000Z-211211T0800Z/
Franklin KY-
245 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHEASTERN FRANKLIN 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 900 AM EST for central
Kentucky.

LAT...LON 3847 8455 3845 8453 3843 8453 3842 8450
      3838 8446 3834 8446 3830 8443 3829 8444
      3830 8466 3833 8468 3843 8462 3849 8456
      3849 8455
TIME...MOT...LOC 0745Z 239DEG 51KT 3835 8462 

$$

KYC209-110800-
/O.CON.KLMK.TO.W.0025.000000T0000Z-211211T0800Z/
Scott KY-
245 AM EST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 AM EST FOR NORTHERN
SCOTT COUNTY...
    
At 245 AM EST, a severe thunderstorm capable of producing a tornado
was located 10 miles north of Georgetown, moving northeast at 60 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
northern Scott County, including the following locations... Longlick,
Skinnersburg, Double Culvert, Biddle, Mallard Point, Stonewall,
Sadieville, Muddy Ford, Porter and Rogers Gap.

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 3847 8455 3845 8453 3843 8453 3842 8450
      3838 8446 3834 8446 3830 8443 3829 8444
      3830 8466 3833 8468 3843 8462 3849 8456
      3849 8455
TIME...MOT...LOC 0745Z 239DEG 51KT 3835 8462 

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

$$

KDW
498 
WWUS53 KLMK 110748
SVSLMK

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

KYC209-110758-
/O.CAN.KLMK.TO.W.0025.000000T0000Z-211211T0800Z/
Scott KY-
248 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHERN SCOTT COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Tornado Watch remains in effect until 900 AM EST for central
Kentucky.

LAT...LON 3847 8455 3845 8453 3843 8453 3842 8450
      3838 8446 3834 8446 3830 8443 3829 8444
      3830 8466 3833 8468 3843 8462 3849 8456
      3849 8455
TIME...MOT...LOC 0747Z 239DEG 51KT 3837 8458 

$$

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, 2:45 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.