Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 8, NWS Louisville, KY

May 4, 2021Marion County, Washington County, Kentucky

NWS Louisville, KY issued this tornado warning at May 4, 2021, 8:14 PM EDT for Marion County, Washington County, Kentucky. It was in force for 31 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: May 4, 2021, 8:14 PM EDT (00:14 UTC)
Expired: May 4, 2021, 8:45 PM EDT
In force: 31 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Marion County, KY, Washington County, KY

The radar

The Louisville radar (KLVX), 61 km from the middle of the area, began a volume at 00:17 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

Time	Report	Where	Remark
May 4, 8:18 PM EDT	TSTM WND DMG	3 Ene Nerinx, KY	FIRST RESPONDERS RESPONDED TO TREES DOWN ON NERINX ROAD AT THE COUNTY LINE. ROADS HAVE BEEN CLEARED. TIME BASED ON RADAR.
May 4, 8:24 PM EDT	TSTM WND DMG	3 Ene Loretto, KY	REPORT OF LOTS OF TREES DOWN NEAR MAKERS MARK DISTILLERY. TIME BASED ON RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.2 hours before the alert went out and 203 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 539 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted.

398 
WFUS53 KLMK 050014
TORLMK
KYC155-229-050045-
/O.NEW.KLMK.TO.W.0008.210505T0014Z-210505T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Louisville KY
814 PM EDT Tue May 4 2021

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  Northwestern Marion County in central Kentucky...
  Southwestern Washington County in central Kentucky...

* Until 845 PM EDT.
    
* At 814 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 9 miles south of Bardstown, moving east at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Lebanon, Springfield, Loretto, Burkes Spring, Dant, Nerinx,
  Bearwallow, Briartown, Holy Cross and Cisselville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3764 8548 3768 8545 3771 8543 3775 8518
      3757 8521
TIME...MOT...LOC 0014Z 271DEG 22KT 3768 8541 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

EBW

1 follow-up statement

342 
WWUS53 KLMK 050026
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
826 PM EDT Tue May 4 2021

KYC155-050035-
/O.CAN.KLMK.TO.W.0008.000000T0000Z-210505T0045Z/
Marion KY-
826 PM EDT Tue May 4 2021

...THE TORNADO WARNING FOR NORTHWESTERN MARION COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3765 8531 3765 8534 3767 8536 3767 8537
      3770 8537 3774 8518 3763 8520 3763 8525
TIME...MOT...LOC 0025Z 269DEG 23KT 3768 8532 

$$

KYC229-050045-
/O.CON.KLMK.TO.W.0008.000000T0000Z-210505T0045Z/
Washington KY-
826 PM EDT Tue May 4 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
SOUTHWESTERN WASHINGTON COUNTY...
    
At 825 PM EDT, a severe thunderstorm capable of producing a tornado
was located west of Springfield, moving east at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Springfield, Cisselville, Saint Catharine, Bearwallow and Briartown. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 3765 8531 3765 8534 3767 8536 3767 8537
      3770 8537 3774 8518 3763 8520 3763 8525
TIME...MOT...LOC 0025Z 269DEG 23KT 3768 8532 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

EBW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 8:09 PM EDT	Special Weather Statement	LMK	Marion, Washington	36 min
May 4, 8:10 PM EDT	Special Weather Statement	LMK	Logan	35 min
May 4, 8:20 PM EDT	Special Weather Statement	LMK	Edmonson, Warren	40 min
May 4, 8:30 PM EDT	Flash Flood Warning	LMK	Barren, Edmonson, Logan, Warren	4 hr
May 4, 8:36 PM EDT	Severe Thunderstorm Warning	LMK	Washington	24 min
May 4, 8:46 PM EDT	Special Weather Statement	LMK	Larue	29 min
May 4, 8:55 PM EDT	Special Weather Statement	LMK	Mercer	35 min
May 4, 9:02 PM EDT	Special Weather Statement	LMK	Butler	13 min
May 4, 9:08 PM EDT	Special Weather Statement	LMK	Hart	37 min
May 4, 9:14 PM EDT	Special Weather Statement	LMK	Marion	31 min
May 4, 9:18 PM EDT	Severe Thunderstorm Warning	LMK	Larue, Marion, Nelson	27 min
May 4, 9:29 PM EDT	Special Weather Statement	LMK	Jessamine	61 min
May 4, 9:45 PM EDT	Flash Flood Warning	LMK	Butler, Logan	3 hr
May 4, 10:00 PM EDT	Special Weather Statement	LMK	Logan	30 min
May 5, 12:36 AM EDT	Areal Flood Warning	LMK	Butler, Logan	5 hr
May 5, 7:59 AM EDT	River Flood Advisory	LMK	Hart	3 hr
May 5, 10:22 AM EDT	River Flood Advisory	LMK	Hardin, Nelson	16 hr
May 5, 11:26 AM EDT	River Flood Warning	LMK	Hart	7 hr
May 5, 4:08 PM EDT	River Flood Advisory	LMK	Bourbon	10 hr

Nearby

Tornado Warnings in Kentucky, 2021 Every tornado warning in 2021 Tornadoes 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.