Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 61, NWS Louisville, KY

June 21, 2021Madison County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 21, 2021, 2:58 PM EDT for Madison County, Kentucky. It was in force for 32 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: Jun 21, 2021, 2:58 PM EDT (18:58 UTC)
Expired: Jun 21, 2021, 3:30 PM EDT
In force: 32 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Madison County, KY

The radar

The Jackson,KY radar (KJKL), 80 km from the middle of the area, began a volume at 18:59 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
Jun 21, 3:03 PM EDT	TSTM WND DMG	1 Nne Big Hill, KY	TREE DOWN ALONG HWY 421.

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.

Issued	Product	Office	Lasted
Jun 21, 1:52 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.0 hours before the alert went out and 209 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: 1320 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 785 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 313 m²/s²
0-3 km storm-relative helicity: 308 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 6.7

Open this sounding in Storm Lab

The text

As transmitted.

124 
WUUS53 KLMK 211858
SVRLMK
KYC151-211930-
/O.NEW.KLMK.SV.W.0061.210621T1858Z-210621T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
258 PM EDT Mon Jun 21 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Madison County in central Kentucky...

* Until 330 PM EDT.

* At 258 PM EDT, a severe thunderstorm was located over Rockford,
  moving northeast at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will remain over mainly rural areas of
  southeastern Madison County, including the following locations...
  Duluth, Bighill, Combs, Panola, Dreyfus, Berea, Slate Lick and
  Wallaceton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3756 8416 3752 8420 3752 8430 3754 8430
      3753 8432 3754 8432 3754 8435 3759 8437
      3769 8410 3767 8409 3765 8413 3764 8413
      3757 8409
TIME...MOT...LOC 1858Z 245DEG 26KT 3754 8427 

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

DM

2 follow-up statements

638 
WWUS53 KLMK 211917
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
317 PM EDT Mon Jun 21 2021

KYC151-211930-
/O.CON.KLMK.SV.W.0061.000000T0000Z-210621T1930Z/
Madison KY-
317 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHEASTERN MADISON COUNTY...

At 317 PM EDT, a severe thunderstorm was located over Locust Branch,
moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Panola, Dreyfus, Duluth, Combs and Brassfield. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3754 8418 3764 8424 3769 8410 3767 8409
      3765 8413 3764 8413 3757 8409 3756 8416
TIME...MOT...LOC 1917Z 245DEG 26KT 3760 8411 

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

DM

507 
WWUS53 KLMK 211923
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
323 PM EDT Mon Jun 21 2021

KYC151-211933-
/O.EXP.KLMK.SV.W.0061.000000T0000Z-210621T1930Z/
Madison KY-
323 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MADISON COUNTY
WILL EXPIRE AT 330 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.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central Kentucky.

LAT...LON 3754 8418 3764 8424 3769 8410 3767 8409
      3765 8413 3764 8413 3757 8409 3756 8416
TIME...MOT...LOC 1923Z 245DEG 26KT 3762 8407 

$$

DM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 11:21 AM EDT	Special Weather Statement	LMK	Breckinridge	24 min
Jun 21, 11:42 AM EDT	Special Weather Statement	LMK	Ohio	48 min
Jun 21, 11:48 AM EDT	Special Weather Statement	LMK	Breckinridge	42 min
Jun 21, 12:06 PM EDT	Special Weather Statement	LMK	Clark	24 min
Jun 21, 12:21 PM EDT	Special Weather Statement	LMK	Spencer	39 min
Jun 21, 12:26 PM EDT	Special Weather Statement	LMK	Hardin	49 min
Jun 21, 12:34 PM EDT	Special Weather Statement	LMK	Grayson	41 min
Jun 21, 12:41 PM EDT	Severe Thunderstorm Warning	LMK	Grayson, Hardin, Hart	34 min
Jun 21, 12:54 PM EDT	Special Weather Statement	LMK	Nelson, Spencer	51 min
Jun 21, 1:00 PM EDT	Severe Thunderstorm Warning	LMK	Anderson, Nelson, Washington	45 min
Jun 21, 1:09 PM EDT	Areal Flood Advisory	LMK	Breckinridge, Bullitt, Grayson, Hardin, Meade, Nelson	4 hr
Jun 21, 1:19 PM EDT	Special Weather Statement	LMK	Anderson, Fayette, Woodford	41 min
Jun 21, 1:27 PM EDT	Special Weather Statement	LMK	Clark	33 min
Jun 21, 1:35 PM EDT	Special Weather Statement	LMK	Hardin	55 min
Jun 21, 1:42 PM EDT	Special Weather Statement	LMK	Washington	48 min
Jun 21, 1:48 PM EDT	Severe Thunderstorm Warning	LMK	Marion, Nelson, Washington	27 min
Jun 21, 1:55 PM EDT	Severe Thunderstorm Warning	LMK	Clark, Fayette, Jessamine	25 min
Jun 21, 2:09 PM EDT	Special Weather Statement	LMK	Madison	36 min
Jun 21, 2:11 PM EDT	Special Weather Statement	LMK	Ohio	34 min
Jun 21, 2:13 PM EDT	Special Weather Statement	LMK	Boyle	32 min
Jun 21, 2:19 PM EDT	Special Weather Statement	LMK	Grayson	26 min
Jun 21, 2:28 PM EDT	Severe Thunderstorm Warning	LMK	Clark, Madison	15 min
Jun 21, 2:30 PM EDT	Special Weather Statement	LMK	Lincoln	30 min
Jun 21, 2:33 PM EDT	Special Weather Statement	LMK	Larue	27 min
Jun 21, 2:38 PM EDT	Areal Flood Advisory	LMK	Butler, Grayson, Ohio	3 hr
Jun 21, 2:41 PM EDT	Severe Thunderstorm Warning	LMK	Garrard, Lincoln	34 min
Jun 21, 2:49 PM EDT	Special Weather Statement	LMK	Madison	41 min
Jun 21, 3:13 PM EDT	Areal Flood Advisory	LMK	Green, Hart, Larue, Marion, Nelson, Taylor	3 hr
Jun 21, 3:20 PM EDT	Special Weather Statement	LMK	Edmonson	25 min
Jun 21, 3:25 PM EDT	Special Weather Statement	LMK	Boyle	35 min
Jun 21, 3:33 PM EDT	Flash Flood Warning	LMK	Boyle, Casey, Marion	2 hr
Jun 21, 3:36 PM EDT	Special Weather Statement	LMK	Metcalfe	24 min
Jun 21, 3:38 PM EDT	Special Weather Statement	LMK	Clinton	22 min
Jun 21, 3:40 PM EDT	Areal Flood Advisory	LMK	Edmonson, Hart, Warren	3 hr
Jun 21, 4:57 PM EDT	Special Weather Statement	LMK	Clinton	18 min
Jun 21, 4:59 PM EDT	Special Weather Statement	LMK	Fayette	31 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Every 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.