Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 18, NWS Louisville, KY

March 25, 2021Harrison County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Mar 25, 2021, 10:59 PM EDT for Harrison County, Kentucky. It was in force for 16 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, 10:59 PM EDT (02:59 UTC)
Expired: Mar 25, 2021, 11:15 PM EDT
In force: 16 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Harrison County, KY

The radar

The Cincinnati radar (KILN), 107 km from the middle of the area, began a volume at 03:02 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, 3.0 hours before the alert went out and 108 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.

906 
WUUS53 KLMK 260259
SVRLMK
KYC097-260315-
/O.NEW.KLMK.SV.W.0018.210326T0259Z-210326T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
1059 PM EDT Thu Mar 25 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Northeastern Harrison County in central Kentucky...

* Until 1115 PM EDT.

* At 1059 PM EDT, a severe thunderstorm was located near Cynthiana,
  moving northeast at 90 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...
  Cynthiana, Robinson, Oddville, Garnett, Kelat, Venus, Claysville,
  Sunrise, Poindexter and US Route 62 at State Route 19.

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 3843 8414 3835 8428 3849 8437 3858 8425
      3858 8420 3857 8420 3856 8422 3855 8421
      3855 8416 3854 8416 3853 8418 3850 8418
      3850 8416 3849 8417 3849 8415 3848 8415
      3848 8413 3846 8410
TIME...MOT...LOC 0259Z 230DEG 78KT 3845 8425 

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

SCHOETTMER

1 follow-up statement

856 
WWUS53 KLMK 260307
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
1107 PM EDT Thu Mar 25 2021

KYC097-260316-
/O.EXP.KLMK.SV.W.0018.000000T0000Z-210326T0315Z/
Harrison KY-
1107 PM EDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HARRISON COUNTY
WILL EXPIRE AT 1115 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

Report severe weather to local law enforcement, post your report to
the National Weather Service Louisville  Facebook page, or tweet your
report using hashtag L, M, K, spotter.

LAT...LON 3843 8414 3835 8428 3849 8437 3858 8425
      3858 8420 3857 8420 3856 8422 3855 8421
      3855 8416 3854 8416 3853 8418 3850 8418
      3850 8416 3849 8417 3849 8415 3848 8415
      3848 8413 3846 8410
TIME...MOT...LOC 0306Z 230DEG 78KT 3855 8410 

$$

SCHOETTMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 8:03 PM EDT	Severe Thunderstorm Warning	LMK	Henry	12 min
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, 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.