Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 87, NWS Louisville, KY

July 10, 2021Breckinridge County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 10, 2021, 9:08 PM CDT for Breckinridge County, Kentucky. It was in force for 22 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: Jul 10, 2021, 9:08 PM CDT (02:08 UTC)
Expired: Jul 10, 2021, 9:30 PM CDT
In force: 22 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Breckinridge County, KY

The radar

The Louisville radar (KLVX), 45 km from the middle of the area, began a volume at 02:10 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, 2.1 hours before the alert went out and 181 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: 624 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

467 
WUUS53 KLMK 110208
SVRLMK
KYC027-110230-
/O.NEW.KLMK.SV.W.0087.210711T0208Z-210711T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
908 PM CDT Sat Jul 10 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Southern Breckinridge County in central Kentucky...

* Until 930 PM CDT.

* At 907 PM CDT, severe thunderstorms were located along a line
  extending from near Hardinsburg to 12 miles northwest of
  Leitchfield, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* These severe thunderstorms will remain over mainly rural areas of
  southeastern Breckinridge County, including the following
  locations... Mcquady, Dyer, Constantine, Garfield, Se Ree,
  Westview, Buras, Big Spring, Kirk and Bewleyville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3790 8627 3788 8625 3780 8615 3761 8626
      3760 8647 3762 8649 3762 8652 3775 8653
TIME...MOT...LOC 0207Z 243DEG 37KT 3773 8645 3762 8644 

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

RAS

1 follow-up statement

362 
WWUS53 KLMK 110228
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
928 PM CDT Sat Jul 10 2021

KYC027-110238-
/O.EXP.KLMK.SV.W.0087.000000T0000Z-210711T0230Z/
Breckinridge KY-
928 PM CDT Sat Jul 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BRECKINRIDGE
COUNTY WILL EXPIRE AT 930 PM CDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds and heavy rain are still
possible with these thunderstorms.

LAT...LON 3790 8627 3788 8625 3780 8615 3761 8626
      3760 8647 3762 8649 3762 8652 3775 8653
TIME...MOT...LOC 0228Z 243DEG 37KT 3783 8621 3772 8620 

$$

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 7:07 PM CDT	Areal Flood Advisory	LMK	Garrard, Madison	3 hr
Jul 10, 7:09 PM CDT	Severe Thunderstorm Warning	LMK	Trimble	36 min
Jul 10, 8:20 PM CDT	Special Weather Statement	LMK	Hancock	40 min
Jul 10, 8:31 PM CDT	Special Weather Statement	LMK	Breckinridge	29 min
Jul 10, 9:03 PM CDT	Special Weather Statement	LMK	Breckinridge, Grayson, Meade	27 min
Jul 10, 9:25 PM CDT	Areal Flood Advisory	LMK	Breckinridge	7 hr
Jul 10, 9:27 PM CDT	Special Weather Statement	LMK	Hardin	33 min
Jul 10, 9:32 PM CDT	Special Weather Statement	LMK	Edmonson, Hart	43 min
Jul 10, 10:03 PM CDT	Special Weather Statement	LMK	Anderson, Franklin, Scott, Woodford	42 min
Jul 10, 10:31 PM CDT	Areal Flood Advisory	LMK	Butler	6 hr
Jul 10, 10:43 PM CDT	Areal Flood Advisory	LMK	Jefferson	3 hr
Jul 11, 12:14 AM CDT	Flash Flood Warning	LMK	Ohio	4 hr
Jul 11, 3:00 AM CDT	Special Weather Statement	LMK	Logan	30 min
Jul 11, 3:42 AM CDT	Special Weather Statement	LMK	Simpson	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.