Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 23, NWS Jackson, KY

April 8, 20215 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 8, 2021, 7:11 PM EDT for 5 counties in Kentucky. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 8, 2021, 7:11 PM EDT (23:11 UTC)
Expired
Apr 8, 2021, 8:00 PM EDT
In force
49 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Breathitt County, KY, Lee County, KY, Magoffin County, KY, Morgan County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 18 km from the middle of the area, began a volume at 23:15 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 196 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 12:00Z on 2021-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 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, Cncnati-Daytn, OH at 12:00Z on 2021-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 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
32 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1630 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

770 
WUUS53 KJKL 082311
SVRJKL
KYC025-129-153-175-237-090000-
/O.NEW.KJKL.SV.W.0023.210408T2311Z-210409T0000Z/

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

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Southwestern Morgan County in southeastern Kentucky...
  Northwestern Breathitt County in southeastern Kentucky...
  West central Magoffin County in southeastern Kentucky...
  Northeastern Lee County in southeastern Kentucky...
  Wolfe County in southeastern Kentucky...

* Until 800 PM EDT.

* At 711 PM EDT, a severe thunderstorm was located over Williba, or 7
  miles south of Campton, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Campton, Simpson, Henry, Lewis, Fincastle, Burkhart, Lexie,
  Rexville, Fillmore, Bethanna, Pekin and Pence.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3754 8359 3762 8370 3796 8337 3776 8314
TIME...MOT...LOC 2311Z 227DEG 30KT 3763 8358 

HAIL...1.25IN
WIND...60MPH
 
$$

HAL
2 follow-up statements
377 
WWUS53 KJKL 082343
SVSJKL

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

KYC025-129-082352-
/O.CAN.KJKL.SV.W.0023.000000T0000Z-210409T0000Z/
Breathitt KY-Lee KY-
743 PM EDT Thu Apr 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BREATHITT AND
NORTHEASTERN LEE COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3770 8341 3776 8350 3796 8337 3778 8316
TIME...MOT...LOC 2342Z 227DEG 30KT 3781 8333 

$$

KYC153-175-237-090000-
/O.CON.KJKL.SV.W.0023.000000T0000Z-210409T0000Z/
Morgan KY-Magoffin KY-Wolfe KY-
743 PM EDT Thu Apr 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR SOUTHWESTERN MORGAN...WEST CENTRAL MAGOFFIN AND NORTHEASTERN
WOLFE COUNTIES...

At 742 PM EDT, a severe thunderstorm was located over Lizzielane, or
7 miles southwest of West Liberty, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Henry, Lewis, Lower Gilmore, Greear, Mize, Lexie, Rexville, Stacy
Fork, Daysboro, Bethanna, Pekin and Sellars.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3770 8341 3776 8350 3796 8337 3778 8316
TIME...MOT...LOC 2342Z 227DEG 30KT 3781 8333 

HAIL...1.25IN
WIND...60MPH
 
$$

HAL
040 
WWUS53 KJKL 090004
SVSJKL

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

KYC153-175-237-090014-
/O.EXP.KJKL.SV.W.0023.000000T0000Z-210409T0000Z/
Morgan KY-Magoffin KY-Wolfe KY-
804 PM EDT Thu Apr 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MORGAN...WEST
CENTRAL MAGOFFIN AND NORTHEASTERN WOLFE COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However small
hail and gusty winds are still possible with this thunderstorm.

LAT...LON 3770 8341 3776 8350 3796 8337 3778 8316
TIME...MOT...LOC 0004Z 227DEG 30KT 3725 8374 

$$

HAL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 2:17 PM EDTSpecial Weather StatementJKLWayne28 min
Apr 8, 3:26 PM EDTSpecial Weather StatementJKLPulaski, Rockcastle49 min
Apr 8, 3:54 PM EDTSevere Thunderstorm WarningJKLJackson, Laurel, Pulaski, Rockcastle36 min
Apr 8, 4:27 PM EDTSevere Thunderstorm WarningJKLJackson, Laurel, Rockcastle33 min
Apr 8, 4:31 PM EDTSpecial Weather StatementJKLPulaski29 min
Apr 8, 5:07 PM EDTSpecial Weather StatementJKLLee38 min
Apr 8, 5:17 PM EDTSpecial Weather StatementJKLMontgomery28 min
Apr 8, 5:20 PM EDTSevere Thunderstorm WarningJKLEstill, Lee, Powell, Wolfe25 min
Apr 8, 5:40 PM EDTSevere Thunderstorm WarningJKLMenifee, Morgan, Powell, Wolfe25 min
Apr 8, 5:50 PM EDTSevere Thunderstorm WarningJKLEstill, Lee, Powell, Wolfe25 min
Apr 8, 5:56 PM EDTSevere Thunderstorm WarningJKLLaurel, McCreary, Pulaski, Whitley49 min
Apr 8, 6:02 PM EDTSevere Thunderstorm WarningJKLLaurel, McCreary, Pulaski, Wayne21 min
Apr 8, 6:14 PM EDTSevere Thunderstorm WarningJKLMenifee, Morgan, Powell, Wolfe31 min
Apr 8, 6:44 PM EDTSevere Thunderstorm WarningJKLClay, Jackson, Laurel, Owsley31 min
Apr 8, 6:51 PM EDTSevere Thunderstorm WarningJKLLaurel, Pulaski24 min
Apr 8, 6:58 PM EDTSevere Thunderstorm WarningJKLBell, Knox, Whitley35 min
Apr 8, 7:31 PM EDTSevere Thunderstorm WarningJKLClay, Laurel, Owsley29 min
Apr 8, 7:39 PM EDTSevere Thunderstorm WarningJKLBell51 min
Apr 8, 7:49 PM EDTSpecial Weather StatementJKLBreathitt26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.