Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 5, NWS Jackson, KY

December 11, 20214 counties in Kentucky

NWS Jackson, KY issued this tornado warning at Dec 11, 2021, 5:13 AM EST for 4 counties in Kentucky. It was in force for 17 min. 3 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, 5:13 AM EST (10:13 UTC)
Expired
Dec 11, 2021, 5:30 AM EST
In force
17 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Estill County, KY, Lee County, KY, Montgomery County, KY, Powell County, KY

The radar

The Jackson,KY radar (KJKL), 59 km from the middle of the area, began a volume at 10:13 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, 5:25 AM ESTTSTM WND DMG2 Nne Union Hall, KYTREE DOWN ALONG 7200 BLOCK OF HARDWICKS CREEK RD. TIME ESTIMATE FROM RADAR.
Dec 11, 5:33 AM ESTTSTM WND DMG2 E Spout Springs, KYTREE ON 3 PHASE POWERLINE ALONG SPOUT SPRINGS ROAD. ROAD IS CLOSED AND REPAIRS ARE ONGOING. TIME ESTIMATED FROM RADAR.
Dec 11, 5:35 AM ESTTSTM WND DMG3 Ne Clay City, KYTREE OVER PAINT CREEK ROAD IN THE 2500 BLOCK. 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.2 hours before the alert went out and 189 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.

489 
WFUS53 KJKL 111013
TORJKL
KYC065-129-173-197-111030-
/O.NEW.KJKL.TO.W.0005.211211T1013Z-211211T1030Z/

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

The National Weather Service in JACKSON KY has issued a

* Tornado Warning for...
  Powell County in east central Kentucky...
  Southeastern Montgomery County in east central Kentucky...
  Estill County in east central Kentucky...
  North central Lee County in southeastern Kentucky...

* Until 530 AM EST.
    
* At 513 AM EST, a severe thunderstorm capable of producing a tornado
  was located near Blackburn, or 8 miles southeast of Richmond,
  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...
  Rice Station around 520 AM EST.
  Irvine around 525 AM EST.
  Cottage Furnace around 530 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 3776 8368 3772 8371 3770 8367 3763 8412
      3765 8413 3767 8409 3768 8410 3770 8409
      3774 8410 3774 8408 3777 8409 3778 8411
      3794 8379
TIME...MOT...LOC 1013Z 244DEG 53KT 3766 8416 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

GREIF
1 follow-up statement
842 
WWUS53 KJKL 111027
SVSJKL

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

KYC065-129-173-197-111036-
/O.EXP.KJKL.TO.W.0005.000000T0000Z-211211T1030Z/
Powell KY-Montgomery KY-Estill KY-Lee KY-
527 AM EST Sat Dec 11 2021

...THE TORNADO WARNING FOR POWELL...SOUTHEASTERN MONTGOMERY...ESTILL
AND NORTH CENTRAL LEE COUNTIES WILL EXPIRE AT 530 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.  However gusty
winds are still possible with this thunderstorm.

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

Remember, a Severe Thunderstorm Warning still remains in effect this 
area through 6:15 AM EST

LAT...LON 3776 8368 3772 8371 3770 8367 3763 8412
      3765 8413 3767 8409 3768 8410 3770 8409
      3774 8410 3774 8408 3777 8409 3778 8411
      3794 8379
TIME...MOT...LOC 1026Z 244DEG 53KT 3774 8396 

$$

GREIF

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, 5:27 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, 5:56 AM ESTTornado WarningJKLMcCreary, Wayne19 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.