Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 101, NWS Jackson, KY

December 11, 20214 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Dec 11, 2021, 5:49 AM EST for 4 counties in Kentucky. It was in force for 41 min. 19 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, 5:49 AM EST (10:49 UTC)
Expired
Dec 11, 2021, 6:30 AM EST
In force
41 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties McCreary County, KY, Pulaski County, KY, Wayne County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 145 km from the middle of the area, began a volume at 10:51 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, 5:49 AM ESTTSTM WND DMG1 Se Cabell, KYTREES DOWN ACROSS MURI ROAD. TIME ESTIMATED FROM RADAR.
Dec 11, 5:55 AM ESTTSTM WND DMG2 Ene Susie, KYTREE ACROSS HIGHWAY 858 IN THE 1000 BLOCK. TIME ESTIMATED FROM RADAR.
Dec 11, 5:55 AM ESTTSTM WND DMGHidalgo, KYCORRECTS PREVIOUS TSTM WND DMG REPORT FROM HIDALGO. TREE REPORTED DOWN ALONG HIGHWAY 200. TIME ESTIMATED FROM RADAR.
Dec 11, 5:55 AM ESTTSTM WND DMGHidalgo, KYTREE REPORTED DOWN ALONG HIGHWAY 22. TIME ESTIMATED FROM RADAR.
Dec 11, 5:56 AM ESTTSTM WND DMG2 Sw Monticello, KYVERY LARGE TREE ACROSS ADAIR STREET. TIME ESTIMATED FROM RADAR.
Dec 11, 5:56 AM ESTTSTM WND DMG3 W Monticello, KYTREES DOWN ON HIGHWAY 3284. TIME ESTIMATED FROM RADAR.
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, 6:00 AM ESTTSTM WND DMG2 Nnw Trimble, KYTREE DOWN BLOCKING HIGHWAY 761 NEAR NANCY. TIME ESTIMATED OFF RADAR.
Dec 11, 6:00 AM ESTTSTM WND DMG2 Ssw Frazer, KYTREE ACROSS HIGHWAY 1619. TIME ESTIMATED FROM RADAR.
Dec 11, 6:05 AM ESTTSTM WND DMG3 Se Hogue, KYTREE DOWNED ALONG WITH POWER LINES BLOCKING BOTH LANES OF HIGHWAY 1674. TIME ESTIMATED OFF RADAR.
Dec 11, 6:07 AM ESTTSTM WND DMG1 Ne Bronston, KYPOWER LINES DOWNED IN BURNSIDE AT THE INTERSECTION OF CLIFFSIDE AND CUMBERLAND DRIVES. 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, 6:10 AM ESTTSTM WND GST 523 E Parnell, KYMEASURED AT THE WAYNE COUNTY KY MESONET STATION.
Dec 11, 6:15 AM ESTTSTM WND DMGSlavans, KYTREE DOWN ALONG HIGHWAY 92 WEST NEAR WAYNE/MCCREARY COUNTY LINE. TIME ESTIMATED FROM RADAR.
Dec 11, 6:31 AM ESTTSTM WND DMG1 W Pine Knot, KYTREE REPORTED DOWN ON ROUND TOP RD. TIME ESTIMATED FROM RADAR.
Dec 11, 6:32 AM ESTTSTM WND DMG2 Ene Strunk, KYTREE REPORTED DOWN ON MURPHY RIDGE ROAD. TIME ESTIMATED FROM RADAR.
Dec 11, 6:35 AM ESTTSTM WND DMG4 Ne Pine Knot, KYTREE BLOCKING LAUREL CEMETERY ROAD. TIME ESTIMATED FROM RADAR.
Dec 11, 6:40 AM ESTTSTM WND GST 56Dabney, KYRECORDED AT THE PULASKI COUNTY KY MESONET STATION.

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, 10.8 hours before the alert went out and 188 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.

266 
WUUS53 KJKL 111049
SVRJKL
KYC147-199-231-235-111130-
/O.NEW.KJKL.SV.W.0101.211211T1049Z-211211T1130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
549 AM EST Sat Dec 11 2021

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Wayne County in south central Kentucky...
  Pulaski County in south central Kentucky...
  McCreary County in south central Kentucky...
  Southwestern Whitley County in south central Kentucky...

* Until 630 AM EST.

* At 549 AM EST, severe thunderstorms were located along a line
  extending from Columbia to Powersburg to 10 miles southwest of
  Jamestown to near Monterey, moving east at 65 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Somerset, Monticello, Williamsburg, Whitley City, Science Hill,
  Burnside, Parmleysville, Cains Store, Sloans Valley, Parnell,
  Cumberland Falls S.P. and Co-Operative.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

For your protection move to an interior room on the lowest floor of a
building.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

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

&&

LAT...LON 3692 8496 3696 8494 3695 8490 3700 8484
      3705 8491 3711 8490 3727 8468 3728 8459
      3697 8434 3695 8437 3694 8432 3675 8416
      3659 8420 3660 8479 3663 8500 3669 8502
      3676 8501 3686 8506
TIME...MOT...LOC 1049Z 264DEG 57KT 3711 8531 3670 8497 3633 8507 3618
8532

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEERTSON
2 follow-up statements
864 
WWUS53 KJKL 111116
SVSJKL

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

KYC147-199-231-235-111130-
/O.CON.KJKL.SV.W.0101.000000T0000Z-211211T1130Z/
Wayne KY-Pulaski KY-McCreary KY-Whitley KY-
616 AM EST Sat Dec 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM EST
FOR WAYNE...PULASKI...MCCREARY AND SOUTHWESTERN WHITLEY COUNTIES...

At 616 AM EST, severe thunderstorms were located along a line
extending from Bent to Pine Knot to 6 miles northwest of Helenwood to
6 miles south of Jamestown, moving east at 60 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Somerset, Monticello, Williamsburg, Whitley City, Science Hill,
Burnside, Parmleysville, Cains Store, Sloans Valley, Parnell,
Cumberland Falls S.P. and Co-Operative.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

For your protection move to an interior room on the lowest floor of a
building.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 3692 8496 3696 8494 3695 8490 3700 8484
      3705 8491 3711 8490 3727 8468 3728 8459
      3697 8434 3695 8437 3694 8432 3675 8416
      3659 8420 3660 8479 3663 8500 3669 8502
      3676 8501 3686 8506
TIME...MOT...LOC 1116Z 270DEG 53KT 3711 8443 3669 8444 3647 8465 3634
8494

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEERTSON
032 
WWUS53 KJKL 111134
SVSJKL

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

KYC147-199-231-235-111141-
/O.EXP.KJKL.SV.W.0101.000000T0000Z-211211T1130Z/
Wayne KY-Pulaski KY-McCreary KY-Whitley KY-
634 AM EST Sat Dec 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR WAYNE...PULASKI...MCCREARY AND
SOUTHWESTERN WHITLEY COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have moved out of Wayne 
County. Therefore, the warning has been allowed to expire in Wayne 
County. A new warning has been issued for McCreary, Southeast 
Pulaski, and Whitley counties until 700 AM.

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

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
JACKSON KY.

Remember, a Severe Thunderstorm Warning still remains in effect for
for Whitley, southeast Pulaski, and McCreary counties until 700 AM. 

LAT...LON 3692 8496 3696 8494 3695 8490 3700 8484
      3705 8491 3711 8490 3727 8468 3728 8459
      3697 8434 3695 8437 3694 8432 3675 8416
      3659 8420 3660 8479 3663 8500 3669 8502
      3676 8501 3686 8506
TIME...MOT...LOC 1131Z 270DEG 57KT 3713 8417 3671 8418 3649 8439 3636
8468

$$

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, 5:56 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

Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning 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.