Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 86, NWS Jackson, KY

August 14, 2021Bell County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Aug 14, 2021, 8:28 PM EDT for Bell County, Kentucky. It was in force for 47 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
Aug 14, 2021, 8:28 PM EDT (00:28 UTC)
Expired
Aug 14, 2021, 9:15 PM EDT
In force
47 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), 59 km from the middle of the area, began a volume at 00:28 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

Nashville Metro, TN (KBNA), launched 00:00Z, 0.5 hours before the alert went out and 266 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, Nashville Metro, TN at 00:00Z on 2021-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1476 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, Nashville Metro, TN at 00:00Z on 2021-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
1476 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
941 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

406 
WUUS53 KJKL 150028
SVRJKL
KYC013-150115-
/O.NEW.KJKL.SV.W.0086.210815T0028Z-210815T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
828 PM EDT Sat Aug 14 2021

The National Weather Service in JACKSON KY has issued a

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

* Until 915 PM EDT.

* At 828 PM EDT, a severe thunderstorm was located over Binghamtown,
  or over Middlesboro, moving northwest at 5 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.

* This severe thunderstorm will be near...
  Binghamtown around 840 PM EDT.
  Noetown around 845 PM EDT.

Other locations in the path of this severe thunderstorm include
Meldrum, Ferndale and Clear Creek Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3665 8388 3679 8368 3665 8356 3664 8358
      3664 8361 3662 8363 3662 8364 3658 8369
      3658 8380
TIME...MOT...LOC 0028Z 139DEG 5KT 3663 8369 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

FISHER
2 follow-up statements
886 
WWUS53 KJKL 150045
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
845 PM EDT Sat Aug 14 2021

KYC013-150115-
/O.CON.KJKL.SV.W.0086.000000T0000Z-210815T0115Z/
Bell KY-
845 PM EDT Sat Aug 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHWESTERN BELL COUNTY...

At 845 PM EDT, a severe thunderstorm was located over Meldrum, or
near Middlesboro, moving northwest at 10 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...
  Clear Creek Springs and Davisburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3665 8388 3679 8368 3665 8356 3664 8358
      3664 8361 3662 8363 3662 8364 3658 8369
      3658 8380
TIME...MOT...LOC 0045Z 139DEG 7KT 3666 8372 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

FISHER
139 
WWUS53 KJKL 150107
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
907 PM EDT Sat Aug 14 2021

KYC013-150117-
/O.EXP.KJKL.SV.W.0086.000000T0000Z-210815T0115Z/
Bell KY-
907 PM EDT Sat Aug 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BELL COUNTY WILL
EXPIRE AT 915 PM EDT...
                
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 will be allowed to expire.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 3665 8388 3679 8368 3665 8356 3664 8358
      3664 8361 3662 8363 3662 8364 3658 8369
      3658 8380
TIME...MOT...LOC 0107Z 139DEG 5KT 3668 8374 

$$

FISHER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 8:04 PM EDTSpecial Weather StatementJKLBell, Harlan41 min
Aug 14, 8:09 PM EDTSevere Thunderstorm WarningJKLBell, Harlan, Leslie36 min
Aug 14, 8:14 PM EDTFlash Flood WarningJKLMcCreary, Pulaski, Wayne91 min
Aug 14, 8:43 PM EDTSpecial Weather StatementJKLMcCreary47 min
Aug 14, 9:13 PM EDTFlash Flood WarningJKLMcCreary2 hr
Aug 14, 9:31 PM EDTSpecial Weather StatementJKLWhitley44 min
Aug 14, 9:47 PM EDTSpecial Weather StatementJKLHarlan, Letcher43 min
Aug 14, 9:51 PM EDTSpecial Weather StatementJKLKnox39 min
Aug 14, 10:15 PM EDTSpecial Weather StatementJKLWhitley30 min
Aug 14, 10:31 PM EDTSpecial Weather StatementJKLLeslie, Letcher, Perry44 min
Aug 15, 4:35 PM EDTSpecial Weather StatementJKLWayne25 min
Aug 15, 6:00 PM EDTSpecial Weather StatementJKLPulaski45 min
Aug 15, 6:46 PM EDTAreal Flood AdvisoryJKLLaurel15 min
Aug 15, 7:01 PM EDTFlash Flood WarningJKLLaurel3 hr
Aug 15, 7:12 PM EDTSpecial Weather StatementJKLKnox, Whitley48 min
Aug 15, 7:15 PM EDTSpecial Weather StatementJKLLetcher, Pike45 min
Aug 15, 7:41 PM EDTAreal Flood AdvisoryJKLLetcher, Pike2 hr
Aug 15, 7:42 PM EDTAreal Flood AdvisoryJKLBell, Clay, Knox, Leslie, Whitley2 hr

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.