Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 15, NWS Louisville, KY

March 25, 2021Henry County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Mar 25, 2021, 8:03 PM EDT for Henry County, Kentucky. It was in force for 12 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: Mar 25, 2021, 8:03 PM EDT (00:03 UTC)
Expired: Mar 25, 2021, 8:15 PM EDT
In force: 12 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Henry County, KY

The radar

The Louisville radar (KLVX), 100 km from the middle of the area, began a volume at 00:01 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.1 hours before the alert went out and 147 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: 1 J/kg
Mixed-layer CIN: -281 J/kg
Mixed-layer LCL: 753 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 290 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

297 
WUUS53 KLMK 260003
SVRLMK
KYC103-260015-
/O.NEW.KLMK.SV.W.0015.210326T0003Z-210326T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
803 PM EDT Thu Mar 25 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  North central Henry County in central Kentucky...

* Until 815 PM EDT.

* At 803 PM EDT, a severe thunderstorm was located near New Castle,
  moving northeast at 65 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...
  Port Royal, Drennon Springs, Turners Station, Lacie and Delville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3856 8506 3857 8504 3855 8500 3855 8501
      3854 8501 3853 8503 3850 8503 3846 8507
      3852 8519 3859 8515 3860 8508
TIME...MOT...LOC 0003Z 206DEG 57KT 3848 8513 

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

CG

1 follow-up statement

108 
WWUS53 KLMK 260012
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
812 PM EDT Thu Mar 25 2021

KYC103-260022-
/O.EXP.KLMK.SV.W.0015.000000T0000Z-210326T0015Z/
Henry KY-
812 PM EDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL HENRY COUNTY
WILL EXPIRE AT 815 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3856 8506 3857 8504 3855 8500 3855 8501
      3854 8501 3853 8503 3850 8503 3846 8507
      3852 8519 3859 8515 3860 8508
TIME...MOT...LOC 0012Z 206DEG 57KT 3859 8506 

$$

CG

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 8:27 PM EDT	Special Weather Statement	LMK	Bullitt, Spencer	33 min
Mar 25, 9:08 PM EDT	Tornado Warning	LMK	Butler, Grayson, Ohio	37 min
Mar 25, 9:16 PM EDT	Special Weather Statement	LMK	Butler	29 min
Mar 25, 9:28 PM EDT	Special Weather Statement	LMK	Hancock	32 min
Mar 25, 9:44 PM EDT	Special Weather Statement	LMK	Breckinridge	31 min
Mar 25, 9:45 PM EDT	Special Weather Statement	LMK	Green, Taylor	30 min
Mar 25, 9:46 PM EDT	Special Weather Statement	LMK	Butler, Grayson	29 min
Mar 25, 10:12 PM EDT	Severe Thunderstorm Warning	LMK	Grayson, Hardin, Hart, Larue	33 min
Mar 25, 10:14 PM EDT	Special Weather Statement	LMK	Edmonson, Hart	31 min
Mar 25, 10:21 PM EDT	Tornado Warning	LMK	Grayson, Hardin, Larue	24 min
Mar 25, 10:38 PM EDT	Special Weather Statement	LMK	Harrison	37 min
Mar 25, 10:42 PM EDT	Severe Thunderstorm Warning	LMK	Hardin, Hart, Larue, Nelson	33 min
Mar 25, 10:45 PM EDT	Tornado Warning	LMK	Hardin, Larue, Nelson	30 min
Mar 25, 10:57 PM EDT	Tornado Warning	LMK	Clinton	15 min
Mar 25, 10:59 PM EDT	Severe Thunderstorm Warning	LMK	Harrison	16 min
Mar 25, 11:01 PM EDT	Severe Thunderstorm Warning	LMK	Boyle, Green, Larue, Marion, Mercer, Nelson and 2 more	29 min
Mar 25, 11:03 PM EDT	Tornado Warning	LMK	Marion, Nelson, Washington	27 min
Mar 25, 11:09 PM EDT	Special Weather Statement	LMK	Trimble	36 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.