Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 65, NWS Louisville, KY

June 29, 2021Ohio County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 29, 2021, 7:09 PM CDT for Ohio County, Kentucky. It was in force for 36 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 29, 2021, 7:09 PM CDT (00:09 UTC)
Expired: Jun 29, 2021, 7:45 PM CDT
In force: 36 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Ohio County, KY

The radar

The Louisville radar (KLVX), 90 km from the middle of the area, began a volume at 00:08 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

Nashville Metro, TN (KBNA), launched 00:00Z, 0.2 hours before the alert went out and 170 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: 224 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 1148 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: -11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

788 
WUUS53 KLMK 300009
SVRLMK
KYC183-300045-
/O.NEW.KLMK.SV.W.0065.210630T0009Z-210630T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
709 PM CDT Tue Jun 29 2021

The National Weather Service in Louisville has issued a

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

* Until 745 PM CDT.

* At 708 PM CDT, a severe thunderstorm was located near Whitesville,
  moving northeast at 10 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will remain over mainly rural areas of
  north central Ohio County, including the following locations...
  Adaburg, Taffy, Deanefield, Herbert, Ralph and Bells Run.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Hail and damaging winds and continuous cloud to ground lightning is 
occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3763 8695 3762 8692 3763 8691 3765 8687
      3767 8684 3767 8682 3771 8687 3774 8683
      3772 8678 3760 8681 3751 8696 3761 8697
TIME...MOT...LOC 0008Z 207DEG 8KT 3762 8689 

HAIL...0.75IN
WIND...60MPH
 
$$

SCHOETTMER

1 follow-up statement

459 
WWUS53 KLMK 300041
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
741 PM CDT Tue Jun 29 2021

KYC183-300051-
/O.EXP.KLMK.SV.W.0065.000000T0000Z-210630T0045Z/
Ohio KY-
741 PM CDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL OHIO COUNTY WILL
EXPIRE AT 745 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds and heavy rain are still
possible with this thunderstorm.

LAT...LON 3763 8695 3762 8692 3763 8691 3765 8687
      3767 8684 3767 8682 3771 8687 3774 8683
      3772 8678 3760 8681 3751 8696 3761 8697
TIME...MOT...LOC 0041Z 207DEG 8KT 3768 8685 

$$

SCHOETTMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:04 PM CDT	Special Weather Statement	LMK	Ohio	26 min
Jun 29, 7:14 PM CDT	Special Weather Statement	LMK	Cumberland	31 min
Jun 29, 7:25 PM CDT	Special Weather Statement	LMK	Grayson	35 min
Jun 29, 8:03 PM CDT	Special Weather Statement	LMK	Hancock	27 min
Jun 29, 8:12 PM CDT	Severe Thunderstorm Warning	LMK	Hancock	33 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.