Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 19, NWS Jackson, KY

April 8, 20214 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 8, 2021, 6:14 PM EDT for 4 counties in Kentucky. It was in force for 31 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
Apr 8, 2021, 6:14 PM EDT (22:14 UTC)
Expired
Apr 8, 2021, 6:45 PM EDT
In force
31 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Menifee County, KY, Morgan County, KY, Powell County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 45 km from the middle of the area, began a volume at 22:17 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
Apr 8, 6:17 PM EDTHAIL 0.7Slade, KYTIME 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.2 hours before the alert went out and 167 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°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.

238 
WUUS53 KJKL 082214
SVRJKL
KYC165-175-197-237-082245-
/O.NEW.KJKL.SV.W.0019.210408T2214Z-210408T2245Z/

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

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Northeastern Powell County in east central Kentucky...
  West central Morgan County in southeastern Kentucky...
  Menifee County in east central Kentucky...
  Northwestern Wolfe County in southeastern Kentucky...

* Until 645 PM EDT.

* At 614 PM EDT, a severe thunderstorm was located over Haystack, or
  8 miles south of Frenchburg, moving northeast at 40 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...
  Frenchburg, Wellington, Campsites in the Indian Creek area of the
  Daniel Boone National Forrest, Bowen, Rogers, Stoll, Rothwell, Red
  River Gorge, Denniston, Pekin, Slade and Omer.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3789 8334 3772 8365 3785 8380 3803 8363
      3802 8361 3801 8361 3801 8358 3806 8358
TIME...MOT...LOC 2214Z 228DEG 34KT 3784 8366 

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

HAL
2 follow-up statements
650 
WWUS53 KJKL 082228
SVSJKL

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

KYC197-082237-
/O.CAN.KJKL.SV.W.0019.000000T0000Z-210408T2245Z/
Powell KY-
628 PM EDT Thu Apr 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POWELL COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3789 8334 3776 8358 3781 8364 3782 8363
      3783 8366 3786 8368 3790 8375 3803 8363
      3801 8361 3801 8358 3806 8358
TIME...MOT...LOC 2227Z 228DEG 34KT 3793 8354 

$$

KYC165-175-237-082245-
/O.CON.KJKL.SV.W.0019.000000T0000Z-210408T2245Z/
Morgan KY-Menifee KY-Wolfe KY-
628 PM EDT Thu Apr 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR WEST CENTRAL MORGAN...MENIFEE AND NORTHWESTERN WOLFE COUNTIES...

At 627 PM EDT, a severe thunderstorm was located over Denniston, or
near Frenchburg, moving northeast at 40 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...
Frenchburg, Wellington, Campsites in the Indian Creek area of the
Daniel Boone National Forrest, Stoll, Rothwell, Red River Gorge,
Denniston, Pekin, Omer, Dan, Fagan and Maytown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3789 8334 3776 8358 3781 8364 3782 8363
      3783 8366 3786 8368 3790 8375 3803 8363
      3801 8361 3801 8358 3806 8358
TIME...MOT...LOC 2227Z 228DEG 34KT 3793 8354 

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

HAL
670 
WWUS53 KJKL 082247
SVSJKL

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

KYC165-175-237-082256-
/O.EXP.KJKL.SV.W.0019.000000T0000Z-210408T2245Z/
Morgan KY-Menifee KY-Wolfe KY-
647 PM EDT Thu Apr 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MORGAN...MENIFEE
AND NORTHWESTERN 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.

LAT...LON 3789 8334 3776 8358 3781 8364 3782 8363
      3783 8366 3786 8368 3790 8375 3803 8363
      3801 8361 3801 8358 3806 8358
TIME...MOT...LOC 2246Z 228DEG 34KT 3728 8398 

$$

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, 6:44 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, 7:11 PM EDTSevere Thunderstorm WarningJKLBreathitt, Lee, Magoffin, Morgan, Wolfe49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.