Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 21, NWS Louisville, KY

December 11, 2021Logan County, Simpson County, Kentucky

NWS Louisville, KY issued this tornado warning at Dec 11, 2021, 12:36 AM CST for Logan County, Simpson County, Kentucky. It was in force for 39 min. 5 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, 12:36 AM CST (06:36 UTC)
Expired
Dec 11, 2021, 1:15 AM CST
In force
39 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

Counties Logan County, KY, Simpson County, KY

The radar

The Ft Campbell radar (KHPX), 35 km from the middle of the area, began a volume at 06:36 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, 12:47 AM CSTTORNADO7 S Spa, KYSTARTING POINT FOR EF3 TORNADO, WITH A PATH LENGTH OF 17 MILES AND PEAK WINDS OF 140 MPH. AT WIDEST POINT, TORNADO WAS 0.8 MILES WIDE. IT WAS ON THE GROUND FOR 17 MINUTES.
Dec 11, 12:47 AM CSTTORNADO8 N Olmstead, KY*** 1 INJ *** UPDATED REPORT FROM THE DEC. 11 TORNADO EVENT. BROUGHT FIRST TOUCHDOWN POINT FARTHER SOUTHWEST BASED ON AERIAL DAMAGE SURVEYS. ALSO CORRECCTED LSR FOR THE INJURY ALREADY NOTED IN PREVIOUS PUBLIC INFORMATION STATEMENT. FOR MORE DETAILS REFER TO TH
Dec 11, 1:01 AM CSTTSTM WND DMG10 Ne Russellville, KYTREES DOWN, POWER OUTAGES, STRUCTURAL DAMAGE TO BUILDINGS AND MOBILE HOMES.
Dec 11, 1:01 AM CSTTSTM WND DMG9 Ne Russellville, KYTREES DOWN, POWER OUTAGES, STRUCTURAL DAMAGE TO BUILDINGS AND MOBILE HOMES. REPORT NUMBER 2 FROM THE AREA WITH SAME DAMAGE. TIME ESTIMATED BY RADAR.
Dec 11, 1:04 AM CSTTORNADO7 Nnw Auburn, KYAPPROXIMATE END POINT OF EF3 TORNADO.

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, 6:21 PM CSTTornado WatchSPC10 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 6.6 hours before the alert went out and 87 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.

836 
WFUS53 KLMK 110636
TORLMK
KYC141-213-110715-
/O.NEW.KLMK.TO.W.0021.211211T0636Z-211211T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Louisville KY
1236 AM CST Sat Dec 11 2021

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  Logan County in south central Kentucky...
  North central Simpson County in south central Kentucky...

* Until 115 AM CST.
    
* At 1236 AM CST, a tornado producing storm was located near Elkton,
  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 tornadic storm will be near...
  Russellville around 1255 AM CST.

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.

&&

LAT...LON 3676 8705 3679 8706 3697 8705 3706 8684
      3700 8667 3686 8660 3673 8706
TIME...MOT...LOC 0636Z 247DEG 48KT 3679 8725 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

DM
2 follow-up statements
409 
WWUS53 KLMK 110650
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
1250 AM CST Sat Dec 11 2021

KYC141-213-110715-
/O.CON.KLMK.TO.W.0021.000000T0000Z-211211T0715Z/
Logan KY-Simpson KY-
1250 AM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CST FOR LOGAN AND
NORTH CENTRAL SIMPSON COUNTIES...
    
At 1249 AM CST, a severe thunderstorm capable of producing a tornado
was located near Russellville, 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
Logan and north central Simpson Counties, including the following
locations... Insco, Gordonsville, Spa, Epleys, Dennis, Crossroad,
Buffalo Fork, Cave Springs, Lost City and Whippoorwill.

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 3676 8705 3679 8706 3697 8705 3706 8684
      3700 8667 3686 8660 3673 8706
TIME...MOT...LOC 0649Z 245DEG 57KT 3689 8698 

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

$$

DM
251 
WWUS53 KLMK 110655
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
1255 AM CST Sat Dec 11 2021

KYC141-213-110715-
/O.CON.KLMK.TO.W.0021.000000T0000Z-211211T0715Z/
Logan KY-Simpson KY-
1255 AM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CST FOR CENTRAL
LOGAN AND NORTH CENTRAL SIMPSON COUNTIES...
        
At 1255 AM CST, a confirmed tornado was located 3 miles south of 
Lewisburg, 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.

Locations impacted include...
Russellville, Anderson, Auburn, Lewisburg, Cooperstown, Insco, Danby,
Spa, Epleys and Dennis.

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 3677 8690 3697 8701 3705 8682 3700 8667
      3687 8660 3681 8676
TIME...MOT...LOC 0655Z 247DEG 48KT 3692 8689 

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

$$

DM

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 7:20 PM CSTSpecial Weather StatementLMKOhio55 min
Dec 10, 7:48 PM CSTTornado WarningLMKOhio57 min
Dec 10, 8:04 PM CSTSpecial Weather StatementLMKBreckinridge56 min
Dec 10, 8:24 PM CSTSevere Thunderstorm WarningLMKBreckinridge, Hancock36 min
Dec 10, 8:32 PM CSTTornado WarningLMKOhio30 min
Dec 10, 9:21 PM CSTTornado WarningLMKOhio39 min
Dec 10, 9:29 PM CSTSpecial Weather StatementLMKBreckinridge31 min
Dec 10, 9:37 PM CSTTornado WarningLMKBreckinridge, Hardin, Meade17 min
Dec 10, 10:42 PM CSTTornado Warning Tornado observedConsiderable damage threatLMKOhio63 min
Dec 10, 11:07 PM CSTTornado Warning Tornado observedConsiderable damage threatLMKBreckinridge, Grayson, Hancock53 min
Dec 10, 11:51 PM CSTTornado Warning Tornado observedConsiderable damage threatLMKBreckinridge, Hardin, Meade39 min
Dec 11, 12:29 AM CSTSpecial Weather StatementLMKSpencer16 min
Dec 11, 12:30 AM CSTSpecial Weather StatementLMKBullitt15 min
Dec 11, 12:33 AM CSTSpecial Weather StatementLMKHenry, Jefferson, Oldham, Shelby, Trimble27 min
Dec 11, 12:41 AM CSTSevere Thunderstorm WarningLMKBullitt, Nelson, Spencer34 min
Dec 11, 12:44 AM CSTTornado WarningLMKBullitt, Nelson, Shelby, Spencer46 min
Dec 11, 12:58 AM CSTTornado Warning Tornado observedLMKButler, Edmonson, Logan, Simpson, Warren47 min
Dec 11, 1:27 AM CSTTornado Warning Tornado observedLMKBarren, Butler, Edmonson, Hart, Metcalfe, Warren48 min
Dec 11, 1:28 AM CSTTornado WarningLMKFranklin, Scott20 min
Dec 11, 1:45 AM CSTSpecial Weather StatementLMKBullitt, Hardin, Larue, Nelson, Spencer30 min
Dec 11, 1:55 AM CSTTornado WarningLMKBarren, Green, Hart, Larue, Marion, Metcalfe and 1 more50 min
Dec 11, 2:08 AM CSTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Hardin, Jefferson, Meade115 min
Dec 11, 2:16 AM CSTSevere Thunderstorm WarningLMKAnderson, Franklin, Harrison, Henry, Nelson, Scott and 3 more29 min
Dec 11, 2:16 AM CSTSevere Thunderstorm Warning Considerable damage threatLMKButler, Logan, Simpson, Warren44 min
Dec 11, 2:22 AM CSTTornado Warning Tornado observedLMKBoyle, Casey, Larue, Lincoln, Marion, Mercer and 1 more38 min
Dec 11, 2:59 AM CSTTornado WarningLMKBoyle, Casey, Garrard, Jessamine, Lincoln, Madison and 1 more46 min
Dec 11, 3:00 AM CSTFlash Flood WarningLMKBarren, Butler, Edmonson, Green, Hart, Logan and 3 more6 hr
Dec 11, 3:10 AM CSTAreal Flood AdvisoryLMKAnderson, Bullitt, Franklin, Harrison, Jefferson, Nelson and 3 more4 hr
Dec 11, 3:13 AM CSTSevere Thunderstorm WarningLMKAllen, Barren, Butler, Edmonson, Hart, Logan and 2 more32 min
Dec 11, 3:20 AM CSTSevere Thunderstorm WarningLMKBourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 2 more25 min
Dec 11, 3:38 AM CSTSevere Thunderstorm WarningLMKClark, Madison37 min
Dec 11, 3:43 AM CSTAreal Flood AdvisoryLMKAdair, Boyle, Casey, Garrard, Green, Lincoln and 3 more4 hr
Dec 11, 3:47 AM CSTSevere Thunderstorm WarningLMKAllen, Barren, Edmonson, Grayson, Green, Hardin and 7 more28 min
Dec 11, 3:56 AM CSTFlash Flood WarningLMKBreckinridge, Bullitt, Franklin, Grayson, Hancock, Hardin and 6 more3 hr
Dec 11, 4:01 AM CSTTornado WarningLMKGarrard, Madison18 min
Dec 11, 4:18 AM CSTSevere Thunderstorm WarningLMKAdair, Allen, Barren, Casey, Cumberland, Green and 5 more42 min
Dec 11, 4:23 AM CSTTornado WarningLMKClark, Garrard, Lincoln, Madison37 min
Dec 11, 4:27 AM CSTTornado WarningLMKCumberland, Monroe33 min
Dec 11, 4:52 AM CSTTornado WarningLMKCasey, Clinton, Cumberland, Russell23 min
Dec 11, 4:58 AM CSTSevere Thunderstorm WarningLMKAdair, Boyle, Casey, Clark, Fayette, Garrard and 6 more32 min
Dec 11, 4:58 AM CSTSevere Thunderstorm WarningLMKAdair, Boyle, Casey, Green, Lincoln, Marion and 2 more32 min
Dec 11, 5:28 AM CSTSevere Thunderstorm WarningLMKClark, Garrard, Lincoln, Madison32 min
Dec 11, 7:42 AM CSTAreal Flood WarningLMKGarrard, Lincoln, Madison3 hr
Dec 11, 9:18 AM CSTSpecial Weather StatementLMKAnderson, Franklin, Henry, Nelson, Shelby, Spencer and 1 more27 min
Dec 11, 10:10 AM CSTSpecial 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.