Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS Jackson, KY

April 8, 20214 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 8, 2021, 5:20 PM EDT for 4 counties in Kentucky. It was in force for 25 min. 2 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, 5:20 PM EDT (21:20 UTC)
Expired
Apr 8, 2021, 5:45 PM EDT
In force
25 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Estill County, KY, Lee County, KY, Powell County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 39 km from the middle of the area, began a volume at 21:20 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, 5:21 PM EDTHAIL 12 E Crystal, KYPUBLIC REPORT MENTIONED HAIL RANGING IN SIZE FROM A DIME UP TO A QUARTER. TIME ESTIMATED FROM RADAR.
Apr 8, 5:41 PM EDTHAIL 0.51 Ene Natural Bridge St, KY

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, 9.3 hours before the alert went out and 182 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.

923 
WUUS53 KJKL 082120
SVRJKL
KYC065-129-197-237-082145-
/O.NEW.KJKL.SV.W.0014.210408T2120Z-210408T2145Z/

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

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Eastern Powell County in east central Kentucky...
  Southeastern Estill County in east central Kentucky...
  Northwestern Lee County in southeastern Kentucky...
  Northwestern Wolfe County in southeastern Kentucky...

* Until 545 PM EDT.

* At 520 PM EDT, a severe thunderstorm was located over Greeley, or 7
  miles northwest of Beattyville, 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...
  Campton, Pilot, Booth, Torrent, Bowen, Rogers, Leeco, Pinnacle, Red
  River Gorge, Whynot, Slade and Shade.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3786 8368 3785 8367 3784 8367 3782 8363
      3783 8361 3782 8359 3782 8356 3777 8348
      3757 8381 3763 8391 3789 8374
TIME...MOT...LOC 2120Z 220DEG 27KT 3768 8378 

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

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, 5:40 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, 7:11 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.