Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 25, NWS Jackson, KY

April 8, 2021Bell County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 8, 2021, 7:39 PM EDT for Bell County, Kentucky. It was in force for 51 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: Apr 8, 2021, 7:39 PM EDT (23:39 UTC)
Expired: Apr 8, 2021, 8:30 PM EDT
In force: 51 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Bell County, KY

The radar

The Knoxville radar (KMRX), 60 km from the middle of the area, began a volume at 23:42 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

Time	Report	Where	Remark
Apr 8, 8:00 PM EDT	HAIL 1.25	1 Nw Binghamtown, KY
Apr 8, 8:10 PM EDT	HAIL 1	Ponza, KY	HAIL UP TO QUARTER-SIZED FELL AT THE BELL COUNTY ROAD DEPARTMENT OFF OF KENTUCKY STATE HIGHWAY 119.
Apr 8, 8:25 PM EDT	HAIL 0.88	1 W Miracle, KY	VIDEO ON SOCIAL MEDIA OF UP TO NICKEL-SIZE HAIL NEAR CALVIN. 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 12:00Z, 11.7 hours before the alert went out and 273 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 55 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 626 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 354 m²/s²
0-3 km storm-relative helicity: 375 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

579 
WUUS53 KJKL 082339
SVRJKL
KYC013-090030-
/O.NEW.KJKL.SV.W.0025.210408T2339Z-210409T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
739 PM EDT Thu Apr 8 2021

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Southeastern Bell County in southeastern Kentucky...

* Until 830 PM EDT.

* At 739 PM EDT, a severe thunderstorm was located near Noetown, or
  near Middlesboro, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Pineville, Middlesboro, East Pineville, Varilla, Ponza, Black
  Snake, Straight Creek, Pruden, Cubage, Binghamtown, Clear Creek
  Springs and Wasioto.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3659 8391 3660 8392 3684 8358 3681 8351
      3678 8349 3673 8350 3670 8346 3667 8346
      3667 8351 3664 8358 3664 8361 3661 8367
      3658 8369
TIME...MOT...LOC 2339Z 237DEG 28KT 3660 8381 

HAIL...1.00IN
WIND...60MPH
 
$$

HAL

2 follow-up statements

490 
WWUS53 KJKL 090008
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
808 PM EDT Thu Apr 8 2021

KYC013-090030-
/O.CON.KJKL.SV.W.0025.000000T0000Z-210409T0030Z/
Bell KY-
808 PM EDT Thu Apr 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHEASTERN BELL COUNTY...

At 808 PM EDT, a severe thunderstorm was located over Calvin, or near
Pineville, moving northeast at 30 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Pineville, Wasioto, Meldrum, East Pineville, Hutch, Blackmont,
Balkan, Varilla, Ponza, Black Snake, Miracle and Calvin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3684 8358 3681 8351 3678 8349 3673 8350
      3670 8346 3667 8346 3667 8351 3664 8358
      3664 8361 3661 8367 3670 8378
TIME...MOT...LOC 0008Z 235DEG 27KT 3671 8361 

HAIL...1.50IN
WIND...60MPH
 
$$

HAL

746 
WWUS53 KJKL 090032
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
832 PM EDT Thu Apr 8 2021

KYC013-090042-
/O.EXP.KJKL.SV.W.0025.000000T0000Z-210409T0030Z/
Bell KY-
832 PM EDT Thu Apr 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BELL COUNTY HAS
EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.

LAT...LON 3684 8358 3681 8351 3678 8349 3673 8350
      3670 8346 3667 8346 3667 8351 3664 8358
      3664 8361 3661 8367 3670 8378
TIME...MOT...LOC 0032Z 237DEG 28KT 3677 8349 

$$

HAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 2:17 PM EDT	Special Weather Statement	JKL	Wayne	28 min
Apr 8, 3:26 PM EDT	Special Weather Statement	JKL	Pulaski, Rockcastle	49 min
Apr 8, 3:54 PM EDT	Severe Thunderstorm Warning	JKL	Jackson, Laurel, Pulaski, Rockcastle	36 min
Apr 8, 4:27 PM EDT	Severe Thunderstorm Warning	JKL	Jackson, Laurel, Rockcastle	33 min
Apr 8, 4:31 PM EDT	Special Weather Statement	JKL	Pulaski	29 min
Apr 8, 5:07 PM EDT	Special Weather Statement	JKL	Lee	38 min
Apr 8, 5:17 PM EDT	Special Weather Statement	JKL	Montgomery	28 min
Apr 8, 5:20 PM EDT	Severe Thunderstorm Warning	JKL	Estill, Lee, Powell, Wolfe	25 min
Apr 8, 5:40 PM EDT	Severe Thunderstorm Warning	JKL	Menifee, Morgan, Powell, Wolfe	25 min
Apr 8, 5:50 PM EDT	Severe Thunderstorm Warning	JKL	Estill, Lee, Powell, Wolfe	25 min
Apr 8, 5:56 PM EDT	Severe Thunderstorm Warning	JKL	Laurel, McCreary, Pulaski, Whitley	49 min
Apr 8, 6:02 PM EDT	Severe Thunderstorm Warning	JKL	Laurel, McCreary, Pulaski, Wayne	21 min
Apr 8, 6:14 PM EDT	Severe Thunderstorm Warning	JKL	Menifee, Morgan, Powell, Wolfe	31 min
Apr 8, 6:44 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Jackson, Laurel, Owsley	31 min
Apr 8, 6:51 PM EDT	Severe Thunderstorm Warning	JKL	Laurel, Pulaski	24 min
Apr 8, 6:58 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Knox, Whitley	35 min
Apr 8, 7:11 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Lee, Magoffin, Morgan, Wolfe	49 min
Apr 8, 7:31 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Laurel, Owsley	29 min
Apr 8, 7:49 PM EDT	Special Weather Statement	JKL	Breathitt	26 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Every 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.