Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 42, NWS Jackson, KY

June 18, 20214 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jun 18, 2021, 11:25 PM EDT for 4 counties in Kentucky. It was in force for 50 min. 4 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
Jun 18, 2021, 11:25 PM EDT (03:25 UTC)
Expired
Jun 19, 2021, 12:15 AM EDT
In force
50 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Elliott County, KY, Johnson County, KY, Magoffin County, KY, Morgan County, KY

The radar

The Jackson,KY radar (KJKL), 41 km from the middle of the area, began a volume at 03:26 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
Jun 18, 11:36 PM EDTTSTM WND DMG1 Nnw Elamton, KYTREES REPORTED DOWN AT THE INTERSECTION OF HWY 437 AND HWY 172. TIME ESTIMATED FROM RADAR.
Jun 18, 11:45 PM EDTTSTM WND DMGBradley, KYLARGE TREE BLOWN DOWN.
Jun 18, 11:59 PM EDTTSTM WND DMG1 W Foraker, KYA LARGE TREE LIMB WAS BLOWN DOWN ONTO KY HIGHWAY 30. THE TIME OF THE EVENT IS ESTIMATED FROM RADAR DATA.
Jun 19, 12:00 AM EDTTSTM WND DMGBradley, KYCORRECTS PREVIOUS TSTM WND DMG REPORT FROM BRADLEY. LARGE TREE BLOWN DOWN.

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
Jun 18, 9:09 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.4 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, Cncnati-Daytn, OH at 00:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2257 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 00:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 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
2257 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1236 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.9
Supercell composite
17.6

Open this sounding in Storm Lab

The text

As transmitted.

084 
WUUS53 KJKL 190325
SVRJKL
KYC063-115-153-175-190415-
/O.NEW.KJKL.SV.W.0042.210619T0325Z-210619T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
1125 PM EDT Fri Jun 18 2021

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Morgan County in southeastern Kentucky...
  Johnson County in northeastern Kentucky...
  Magoffin County in southeastern Kentucky...
  Elliott County in east central Kentucky...

* Until 1215 AM EDT.

* At 1125 PM EDT, a severe thunderstorm was located over Pomp, or
  near West Liberty, moving southeast at 55 mph.

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

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Lenox around 1130 PM EDT.
  Florress around 1135 PM EDT.
  Cisco around 1140 PM EDT.
  Perlie around 1145 PM EDT.

Other locations in the path of this severe thunderstorm include
Salyersville and Ivyton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3811 8289 3803 8300 3798 8302 3796 8299
      3800 8293 3787 8263 3785 8267 3783 8265
      3779 8267 3770 8290 3772 8293 3767 8294
      3761 8307 3763 8309 3761 8313 3769 8326
      3778 8333 3787 8351 3798 8344 3821 8301
TIME...MOT...LOC 0325Z 316DEG 46KT 3798 8329 

HAIL...0.75IN
WIND...60MPH
 
$$

GREIF
3 follow-up statements
923 
WWUS53 KJKL 190348
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
1148 PM EDT Fri Jun 18 2021

KYC063-190357-
/O.CAN.KJKL.SV.W.0042.000000T0000Z-210619T0415Z/
Elliott KY-
1148 PM EDT Fri Jun 18 2021

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

A Severe Thunderstorm Watch remains in effect until 300 AM EDT for
southeastern, northeastern and east central Kentucky.

LAT...LON 3796 8300 3800 8293 3787 8263 3785 8267
      3783 8265 3779 8268 3770 8290 3772 8293
      3767 8294 3761 8307 3763 8309 3761 8313
      3769 8326 3770 8325 3778 8333 3782 8341
      3801 8303
TIME...MOT...LOC 0347Z 312DEG 38KT 3782 8307 

$$

KYC115-153-175-190415-
/O.CON.KJKL.SV.W.0042.000000T0000Z-210619T0415Z/
Morgan KY-Johnson KY-Magoffin KY-
1148 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT
FOR CENTRAL MORGAN...JOHNSON AND MAGOFFIN COUNTIES...

At 1147 PM EDT, a severe thunderstorm was located over Emma, or near
Salyersville, moving southeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
  Mashfork, Riceville and Swamp Branch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3796 8300 3800 8293 3787 8263 3785 8267
      3783 8265 3779 8268 3770 8290 3772 8293
      3767 8294 3761 8307 3763 8309 3761 8313
      3769 8326 3770 8325 3778 8333 3782 8341
      3801 8303
TIME...MOT...LOC 0347Z 312DEG 38KT 3782 8307 

HAIL...<.75IN
WIND...60MPH
 
$$

GREIF
498 
WWUS53 KJKL 190403
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
1203 AM EDT Sat Jun 19 2021

KYC175-190412-
/O.CAN.KJKL.SV.W.0042.000000T0000Z-210619T0415Z/
Morgan KY-
1203 AM EDT Sat Jun 19 2021

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

A Severe Thunderstorm Watch remains in effect until 300 AM EDT for
southeastern and northeastern Kentucky.

LAT...LON 3770 8325 3794 8279 3788 8266 3786 8265
      3785 8267 3783 8265 3779 8268 3770 8290
      3772 8293 3767 8294 3761 8307 3763 8309
      3761 8313 3769 8326
TIME...MOT...LOC 0402Z 316DEG 39KT 3772 8295 

$$

KYC115-153-190415-
/O.CON.KJKL.SV.W.0042.000000T0000Z-210619T0415Z/
Johnson KY-Magoffin KY-
1203 AM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT
FOR JOHNSON AND CENTRAL MAGOFFIN COUNTIES...

At 1202 AM EDT, a severe thunderstorm was located over Ivyton, or
near Salyersville, moving southeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Paintsville, Salyersville, Mason, Oaklawn Estates, Fitz, Oil Springs,
Gifford, Falcon, Carver, Whitehouse, Burning Fork and Meally.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3770 8325 3794 8279 3788 8266 3786 8265
      3785 8267 3783 8265 3779 8268 3770 8290
      3772 8293 3767 8294 3761 8307 3763 8309
      3761 8313 3769 8326
TIME...MOT...LOC 0402Z 316DEG 39KT 3772 8295 

HAIL...<.75IN
WIND...60MPH
 
$$

GREIF
212 
WWUS53 KJKL 190406
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
1206 AM EDT Sat Jun 19 2021

KYC115-153-190416-
/O.EXP.KJKL.SV.W.0042.000000T0000Z-210619T0415Z/
Johnson KY-Magoffin KY-
1206 AM EDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR JOHNSON AND CENTRAL MAGOFFIN
COUNTIES WILL EXPIRE AT 1215 AM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 300 AM EDT for
southeastern and northeastern Kentucky.

LAT...LON 3770 8325 3794 8279 3788 8266 3786 8265
      3785 8267 3783 8265 3779 8268 3770 8290
      3772 8293 3767 8294 3761 8307 3763 8309
      3761 8313 3769 8326
TIME...MOT...LOC 0406Z 316DEG 46KT 3770 8292 

$$

GREIF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 10:24 PM EDTSevere Thunderstorm WarningJKLFleming, Rowan51 min
Jun 18, 10:38 PM EDTSpecial Weather StatementJKLBath52 min
Jun 18, 10:56 PM EDTSevere Thunderstorm WarningJKLBath, Elliott, Fleming, Menifee, Morgan, Rowan49 min
Jun 18, 11:29 PM EDTSpecial Weather StatementJKLBreathitt, Menifee, Wolfe46 min
Jun 19, 12:05 AM EDTSpecial Weather StatementJKLBreathitt, Floyd, Magoffin, Martin40 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.