Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 7, NWS Jackson, KY

December 11, 2021McCreary County, Wayne County, Kentucky

NWS Jackson, KY issued this tornado warning at Dec 11, 2021, 5:56 AM EST for McCreary County, Wayne County, Kentucky. It was in force for 19 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, 5:56 AM EST (10:56 UTC)
Expired
Dec 11, 2021, 6:15 AM EST
In force
19 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties McCreary County, KY, Wayne County, KY

The radar

The Knoxville radar (KMRX), 146 km from the middle of the area, began a volume at 10:57 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, 6:00 AM ESTTSTM WND DMG1 Ene Cooper, KYTREES ACROSS POWERLINES IN VICINITY OF MARCUS LANE AND BERTRAM HOLLOW ROAD. TIME ESTIMATED FROM RADAR.
Dec 11, 6:00 AM ESTTSTM WND DMG1 N Powersburg, KYTREE DOWN ON HIGHWAY 1009. TIME ESTIMATED FROM RADAR.
Dec 11, 6:10 AM ESTTSTM WND DMG1 Nne Cooper, KYTREE DOWN ON HIGHWAY 167. TIME ESTIMATED FROM RADAR.
Dec 11, 6:15 AM ESTTSTM WND DMGSlavans, KYTREE DOWN ALONG HIGHWAY 92 WEST NEAR WAYNE/MCCREARY COUNTY LINE. 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 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 164 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°0°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.

396 
WFUS53 KJKL 111056
TORJKL
KYC147-231-111115-
/O.NEW.KJKL.TO.W.0007.211211T1056Z-211211T1115Z/

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

The National Weather Service in JACKSON KY has issued a

* Tornado Warning for...
  Southern Wayne County in south central Kentucky...
  Southwestern McCreary County in south central Kentucky...

* Until 615 AM EST.
    
* At 556 AM EST, a severe thunderstorm capable of producing a tornado
  was located over Sunnybrook, or 10 miles northeast of Byrdstown,
  moving northeast at 75 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...
  Slickford around 600 AM EST.
  Burfield around 605 AM EST.
  Kidds Crossing around 610 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 3661 8496 3662 8499 3663 8500 3668 8500
      3669 8502 3672 8502 3674 8501 3687 8473
      3666 8452 3660 8472
TIME...MOT...LOC 1056Z 243DEG 65KT 3665 8496 

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

$$

GEERTSON
2 follow-up statements
807 
WWUS53 KJKL 111106
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
606 AM EST Sat Dec 11 2021

KYC147-231-111115-
/O.CON.KJKL.TO.W.0007.000000T0000Z-211211T1115Z/
Wayne KY-McCreary KY-
606 AM EST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 AM EST FOR
SOUTHEASTERN WAYNE AND SOUTHWESTERN MCCREARY COUNTIES...
    
At 606 AM EST, a severe thunderstorm capable of producing a tornado
was located over Rockeybranch, or 9 miles southeast of Monticello,
moving northeast at 75 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...
  Slavens around 610 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 3661 8492 3668 8490 3672 8490 3674 8488
      3675 8485 3677 8481 3687 8473 3666 8452
      3660 8472
TIME...MOT...LOC 1106Z 243DEG 65KT 3674 8475 

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

$$

GEERTSON
981 
WWUS53 KJKL 111114
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
614 AM EST Sat Dec 11 2021

KYC147-231-111124-
/O.EXP.KJKL.TO.W.0007.000000T0000Z-211211T1115Z/
Wayne KY-McCreary KY-
614 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR SOUTHEASTERN WAYNE AND SOUTHWESTERN
MCCREARY COUNTIES WILL EXPIRE AT 615 AM EST...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, damaging winds remain likely and a Severe 
Thunderstorm Warning remains in effect for the area.

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

LAT...LON 3661 8492 3668 8490 3672 8490 3674 8488
      3675 8485 3677 8481 3687 8473 3666 8452
      3660 8472
TIME...MOT...LOC 1114Z 243DEG 65KT 3679 8463 

$$

GEERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 11, 4:45 AM ESTSevere Thunderstorm WarningJKLBath, Estill, Menifee, Montgomery, Powell30 min
Dec 11, 4:55 AM ESTSevere Thunderstorm WarningJKLBath, Fleming, Menifee, Rowan35 min
Dec 11, 5:13 AM ESTTornado WarningJKLEstill, Lee, Montgomery, Powell17 min
Dec 11, 5:27 AM ESTSevere Thunderstorm WarningJKLEstill, Menifee, Montgomery, Morgan, Powell, Rowan and 1 more48 min
Dec 11, 5:43 AM ESTTornado WarningJKLEstill, Powell32 min
Dec 11, 5:49 AM ESTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne, Whitley41 min
Dec 11, 6:08 AM ESTAreal Flood AdvisoryJKLEstill, Menifee, Montgomery, Powell3 hr
Dec 11, 6:17 AM ESTSpecial Weather StatementJKLElliott, Menifee, Morgan, Powell, Rowan58 min
Dec 11, 6:30 AM ESTSevere Thunderstorm WarningJKLClay, Knox, Laurel, McCreary, Pulaski, Whitley30 min
Dec 11, 6:38 AM ESTSevere Thunderstorm WarningJKLBath, Estill, Jackson, Menifee, Montgomery, Powell and 3 more37 min
Dec 11, 6:53 AM ESTTornado WarningJKLKnox, Whitley22 min
Dec 11, 6:58 AM ESTSevere Thunderstorm WarningJKLBell, Clay, Jackson, Knox, Laurel, Leslie and 4 more32 min
Dec 11, 7:08 AM ESTSevere Thunderstorm WarningJKLBath, Estill, Jackson, Lee, Menifee, Morgan and 4 more37 min
Dec 11, 7:24 AM ESTSevere Thunderstorm WarningJKLBell, Clay, Harlan, Knox, Leslie, Letcher and 2 more51 min
Dec 11, 7:39 AM ESTSevere Thunderstorm WarningJKLBreathitt, Elliott, Lee, Magoffin, Morgan, Owsley and 2 more36 min
Dec 11, 7:42 AM ESTAreal Flood AdvisoryJKLMcCreary, Whitley3 hr
Dec 11, 8:04 AM ESTSpecial Weather StatementJKLJohnson, Magoffin, Martin26 min
Dec 11, 8:15 AM ESTSevere Thunderstorm WarningJKLBell, Knox, Whitley30 min
Dec 11, 8:20 AM ESTFlash Flood WarningJKLMcCreary, Whitley3 hr
Dec 11, 8:45 AM ESTSevere Thunderstorm WarningJKLBell, Harlan, Knox, Leslie, Whitley30 min
Dec 11, 9:14 AM ESTAreal Flood WarningJKLPowell3 hr
Dec 11, 9:15 AM ESTSpecial Weather StatementJKLBell, Harlan, Letcher, Pike45 min
Dec 11, 9:57 AM ESTSpecial Weather StatementJKLHarlan33 min
Dec 11, 12:06 PM ESTSpecial Weather StatementJKLBath, Estill, Fleming, Jackson, Menifee, Montgomery and 3 more39 min
Dec 11, 12:45 PM ESTSpecial Weather StatementJKLBath, Elliott, Estill, Jackson, Lee, Menifee and 7 more45 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.