Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 4, NWS Jackson, KY

July 30, 2021McCreary County, Whitley County, Kentucky

NWS Jackson, KY issued this tornado warning at Jul 30, 2021, 4:16 AM EDT for McCreary County, Whitley County, Kentucky. It was in force for 29 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
Jul 30, 2021, 4:16 AM EDT (08:16 UTC)
Expired
Jul 30, 2021, 4:45 AM EDT
In force
29 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties McCreary County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 102 km from the middle of the area, began a volume at 08:17 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
Jul 30, 4:27 AM EDTTSTM WND DMGRedbird, KYWHITLEY COUNTY DISPATCH REPORTED MULTIPLE TREES DOWN ONTO ROADS IN THE REDBIRD COMMUNITY. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 8.3 hours before the alert went out and 221 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 2021-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1874 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 2021-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 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
1874 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1447 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

511 
WFUS53 KJKL 300816
TORJKL
KYC147-235-300845-
/O.NEW.KJKL.TO.W.0004.210730T0816Z-210730T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service JACKSON KY
416 AM EDT Fri Jul 30 2021

The National Weather Service in JACKSON KY has issued a

* Tornado Warning for...
  East central McCreary County in south central Kentucky...
  Western Whitley County in south central Kentucky...

* Until 445 AM EDT.

* At 416 AM EDT, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located over
  Cumberland Falls S.P., or 10 miles northwest of Williamsburg,
  moving southeast at 45 mph.

  HAZARD...Tornado and quarter size hail.

  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.

* These dangerous storms will be near...
  Clio around 420 AM EDT.
  Redbird around 425 AM EDT.
  Williamsburg around 430 AM EDT.
  Pleasant View around 435 AM EDT.

Other locations in the path of this tornadic thunderstorm include
Mountain Ash.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3684 8438 3691 8427 3666 8401 3660 8425
TIME...MOT...LOC 0816Z 330DEG 38KT 3685 8429 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

GREIF
3 follow-up statements
697 
WWUS53 KJKL 300828
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
428 AM EDT Fri Jul 30 2021

KYC147-300837-
/O.CAN.KJKL.TO.W.0004.000000T0000Z-210730T0845Z/
McCreary KY-
428 AM EDT Fri Jul 30 2021

...THE TORNADO WARNING FOR EAST CENTRAL MCCREARY COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3663 8427 3673 8432 3675 8432 3678 8435
      3680 8435 3686 8422 3666 8401 3665 8405
      3661 8423
TIME...MOT...LOC 0827Z 330DEG 32KT 3677 8424 

$$

KYC235-300845-
/O.CON.KJKL.TO.W.0004.000000T0000Z-210730T0845Z/
Whitley KY-
428 AM EDT Fri Jul 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM EDT FOR
SOUTHWESTERN WHITLEY COUNTY...

At 427 AM EDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Redbird, or near Williamsburg, moving southeast at 35 mph.

HAZARD...Tornado and quarter size hail.

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.

These dangerous storms will be near...
  Jellico Creek around 435 AM EDT.

Other locations in the path of this tornadic thunderstorm include
Pleasant View and Mountain Ash.

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 3663 8427 3673 8432 3675 8432 3678 8435
      3680 8435 3686 8422 3666 8401 3665 8405
      3661 8423
TIME...MOT...LOC 0827Z 330DEG 32KT 3677 8424 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

GREIF
102 
WWUS53 KJKL 300836
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
436 AM EDT Fri Jul 30 2021

KYC235-300845-
/O.CON.KJKL.TO.W.0004.000000T0000Z-210730T0845Z/
Whitley KY-
436 AM EDT Fri Jul 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM EDT FOR
SOUTHWESTERN WHITLEY COUNTY...

At 435 AM EDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Clio, or near Williamsburg, moving east at 15 mph.

HAZARD...Tornado and quarter size hail.

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.

These dangerous storms will be near...
  Goldbug around 445 AM EDT.

Other locations in the path of this tornadic thunderstorm include
Williamsburg and Suttons Mill.

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 3675 8432 3685 8421 3666 8401 3665 8405
      3662 8420
TIME...MOT...LOC 0835Z 289DEG 12KT 3679 8421 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

GREIF
208 
WWUS53 KJKL 300841
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
441 AM EDT Fri Jul 30 2021

KYC235-300850-
/O.EXP.KJKL.TO.W.0004.000000T0000Z-210730T0845Z/
Whitley KY-
441 AM EDT Fri Jul 30 2021

...THE TORNADO WARNING FOR SOUTHWESTERN WHITLEY COUNTY WILL EXPIRE AT
445 AM EDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and 
a Severe Thunderstorm Warning remains in effect for the area. 
However gusty winds are still possible with this thunderstorm.

Remember, a Severe Thunderstorm Warning still remains in effect for 
most of Whitley County until 5 AM EDT. 

LAT...LON 3675 8432 3685 8421 3666 8401 3665 8405
      3662 8420
TIME...MOT...LOC 0840Z 330DEG 38KT 3675 8418 

$$

GREIF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 9:55 PM EDTSpecial Weather StatementJKLRowan35 min
Jul 29, 10:03 PM EDTSevere Thunderstorm WarningJKLRowan27 min
Jul 29, 10:25 PM EDTSevere Thunderstorm WarningJKLElliott, Rowan35 min
Jul 29, 10:44 PM EDTSevere Thunderstorm WarningJKLElliott, Morgan, Rowan31 min
Jul 29, 10:53 PM EDTAreal Flood AdvisoryJKLElliott, Fleming, Rowan3 hr
Jul 29, 11:15 PM EDTSpecial Weather StatementJKLElliott, Johnson, Magoffin, Morgan, Wolfe30 min
Jul 29, 11:23 PM EDTSpecial Weather StatementJKLBath, Fleming, Rowan37 min
Jul 29, 11:32 PM EDTAreal Flood AdvisoryJKLBath, Elliott, Fleming, Morgan, Rowan3 hr
Jul 29, 11:43 PM EDTFlash Flood WarningJKLBath, Fleming, Menifee, Morgan, Rowan4 hr
Jul 30, 12:23 AM EDTSpecial Weather StatementJKLBreathitt, Wolfe52 min
Jul 30, 12:24 AM EDTFlash Flood WarningJKLBath, Magoffin, Menifee, Montgomery, Morgan, Wolfe4 hr
Jul 30, 12:25 AM EDTSpecial Weather StatementJKLMenifee, Montgomery, Wolfe50 min
Jul 30, 12:36 AM EDTSevere Thunderstorm WarningJKLBreathitt, Knott, Magoffin, Perry39 min
Jul 30, 12:45 AM EDTSpecial Weather StatementJKLPerry45 min
Jul 30, 12:59 AM EDTFlash Flood WarningJKLBreathitt, Magoffin4 hr
Jul 30, 1:05 AM EDTSpecial Weather StatementJKLBreathitt, Knott40 min
Jul 30, 1:26 AM EDTSpecial Weather StatementJKLLeslie, Perry49 min
Jul 30, 1:30 AM EDTSevere Thunderstorm WarningJKLLeslie, Perry45 min
Jul 30, 1:33 AM EDTFlash Flood WarningJKLBreathitt, Estill, Lee, Montgomery, Owsley, Perry and 2 more4 hr
Jul 30, 1:37 AM EDTSpecial Weather StatementJKLMontgomery, Powell53 min
Jul 30, 1:55 AM EDTFlash Flood WarningJKLLeslie, Perry4 hr
Jul 30, 2:06 AM EDTSpecial Weather StatementJKLHarlan39 min
Jul 30, 2:08 AM EDTSpecial Weather StatementJKLEstill, Jackson52 min
Jul 30, 2:23 AM EDTSpecial Weather StatementJKLBell, Clay52 min
Jul 30, 2:35 AM EDTFlash Flood WarningJKLClay, Estill, Jackson, Lee, Leslie, Owsley4 hr
Jul 30, 2:41 AM EDTSpecial Weather StatementJKLJackson, Laurel, Rockcastle49 min
Jul 30, 3:04 AM EDTSpecial Weather StatementJKLBell, Clay, Knox41 min
Jul 30, 3:12 AM EDTSpecial Weather StatementJKLPulaski, Rockcastle48 min
Jul 30, 3:23 AM EDTAreal Flood AdvisoryJKLClay, Jackson, Laurel, Rockcastle4 hr
Jul 30, 3:30 AM EDTAreal Flood WarningJKLBath, Fleming, Menifee, Morgan, Rowan6 hr
Jul 30, 3:32 AM EDTSpecial Weather StatementJKLKnox, Laurel43 min
Jul 30, 3:56 AM EDTSpecial Weather StatementJKLLaurel, McCreary, Pulaski, Whitley64 min
Jul 30, 4:03 AM EDTAreal Flood AdvisoryJKLLaurel, Pulaski4 hr
Jul 30, 4:11 AM EDTSevere Thunderstorm WarningJKLLaurel, McCreary, Pulaski, Rockcastle, Whitley49 min
Jul 30, 4:18 AM EDTFlash Flood WarningJKLKnox, Laurel, Pulaski, Rockcastle, Whitley4 hr
Jul 30, 4:21 AM EDTAreal Flood WarningJKLBath, Magoffin, Menifee, Montgomery, Morgan, Wolfe3 hr
Jul 30, 4:44 AM EDTSpecial Weather StatementJKLMcCreary, Pulaski, Wayne, Whitley61 min
Jul 30, 4:54 AM EDTAreal Flood AdvisoryJKLMcCreary, Wayne, Whitley3 hr
Jul 30, 4:54 AM EDTSevere Thunderstorm WarningJKLBell, McCreary, Whitley51 min
Jul 30, 5:16 AM EDTAreal Flood WarningJKLBreathitt, Estill, Lee, Montgomery, Owsley, Powell and 1 more4 hr
Jul 30, 5:22 AM EDTSpecial Weather StatementJKLMcCreary, Wayne38 min
Jul 30, 6:35 AM EDTRiver Flood AdvisoryJKLEstill, Powell24 hr
Jul 30, 7:14 AM EDTAreal Flood WarningJKLBath, Menifee, Montgomery, Morgan, Wolfe4 hr
Jul 30, 7:58 AM EDTAreal Flood WarningJKLKnox, Laurel, Pulaski, Rockcastle, Whitley86 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.