Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 59, NWS Louisville, KY

June 21, 2021Clark County, Madison County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 21, 2021, 2:28 PM EDT for Clark County, Madison County, Kentucky. It was in force for 15 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: Jun 21, 2021, 2:28 PM EDT (18:28 UTC)
Expired: Jun 21, 2021, 2:43 PM EDT
In force: 15 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Clark County, KY, Madison County, KY

The radar

The Jackson,KY radar (KJKL), 72 km from the middle of the area, began a volume at 18:27 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 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, 6.5 hours before the alert went out and 178 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.

861 
WUUS53 KLMK 211828
SVRLMK
KYC049-151-211900-
/O.NEW.KLMK.SV.W.0059.210621T1828Z-210621T1900Z/

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

The National Weather Service in Louisville has issued a

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

* Until 300 PM EDT.

* At 228 PM EDT, a severe thunderstorm was located near Harris Ferry,
  moving east at 35 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 Clark and northeastern Madison Counties, including the
  following locations... Goffs Corner, Rightangle, Moberly, Vianna,
  Olivers, Mina, Agawam, Ruckerville, Hunt and Bybee.

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 3792 8399 3786 8401 3787 8403 3784 8400
      3783 8404 3785 8406 3782 8407 3785 8408
      3782 8412 3781 8412 3782 8410 3781 8408
      3778 8411 3777 8408 3772 8410 3771 8420
      3782 8419 3794 8423 3795 8398 3793 8397
TIME...MOT...LOC 1828Z 254DEG 32KT 3787 8414 

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

DM

1 follow-up statement

641 
WWUS53 KLMK 211843
SVSLMK

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

KYC049-151-211853-
/O.CAN.KLMK.SV.W.0059.000000T0000Z-210621T1900Z/
Clark KY-Madison KY-
243 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLARK AND
NORTHEASTERN MADISON COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

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

LAT...LON 3792 8399 3786 8401 3787 8403 3784 8400
      3783 8404 3785 8406 3782 8407 3785 8408
      3782 8412 3781 8412 3782 8410 3781 8408
      3778 8411 3777 8408 3772 8410 3771 8420
      3782 8419 3794 8423 3795 8398 3793 8397
TIME...MOT...LOC 1842Z 254DEG 32KT 3791 8398 

$$

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, 2:30 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, 2:58 PM EDT	Severe Thunderstorm Warning	LMK	Madison	32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.