Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 73, NWS Louisville, KY

July 6, 2021Scott County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 6, 2021, 4:34 PM EDT for Scott County, Kentucky. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 6, 2021, 4:34 PM EDT (20:34 UTC)
Expired
Jul 6, 2021, 5:00 PM EDT
In force
26 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Scott County, KY

The radar

The Louisville radar (KLVX), 121 km from the middle of the area, began a volume at 20:36 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.

What was reported inside it

TimeReportWhereRemark
Jul 6, 4:40 PM EDTTSTM WND DMGStamping Ground, KYFEW TREES DOWN OVER ROADWAYS NEAR STAMPING GROUND, KY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.6 hours before the alert went out and 151 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2021-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1401 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2021-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1401 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1022 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

899 
WUUS53 KLMK 062034
SVRLMK
KYC209-062100-
/O.NEW.KLMK.SV.W.0073.210706T2034Z-210706T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
434 PM EDT Tue Jul 6 2021

The National Weather Service in Louisville has issued a

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

* Until 500 PM EDT.

* At 433 PM EDT, a severe thunderstorm was located over Georgetown,
  and is nearly stationary.

  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.

* This severe thunderstorm will remain over mainly rural areas of
  southern Scott County, including the following locations...
  Skinnersburg, Duval, Mallard Point, Moon Lake Estates, Lancelot
  Estates, Stamping Ground, Clabber Bottom, Great Crossing, Herdon
  and Shiff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3819 8451 3815 8464 3817 8465 3818 8465
      3818 8466 3827 8471 3832 8465 3834 8453
      3827 8447
TIME...MOT...LOC 2033Z 177DEG 3KT 3823 8459 

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

DM
2 follow-up statements
464 
WWUS53 KLMK 062051
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
451 PM EDT Tue Jul 6 2021

KYC209-062100-
/O.CON.KLMK.SV.W.0073.000000T0000Z-210706T2100Z/
Scott KY-
451 PM EDT Tue Jul 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR CENTRAL SCOTT COUNTY...

At 451 PM EDT, a severe thunderstorm was located near Georgetown, and
is nearly stationary.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Georgetown, Stamping Ground, Skinnersburg, Duval, Shiff, Mallard
Point, Moon Lake Estates, Stone Hedge Estates, Delaplain and Great
Crossing.

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 3822 8453 3820 8466 3828 8470 3829 8469
      3832 8464 3833 8459 3829 8451
TIME...MOT...LOC 2051Z 177DEG 3KT 3825 8459 

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

DM
300 
WWUS53 KLMK 062058
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
458 PM EDT Tue Jul 6 2021

KYC209-062108-
/O.EXP.KLMK.SV.W.0073.000000T0000Z-210706T2100Z/
Scott KY-
458 PM EDT Tue Jul 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SCOTT COUNTY WILL
EXPIRE AT 500 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 3822 8453 3820 8466 3828 8470 3829 8469
      3832 8464 3833 8459 3829 8451
TIME...MOT...LOC 2058Z 177DEG 3KT 3826 8459 

$$

DM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 12:32 PM EDTAreal Flood AdvisoryLMKFayette3 hr
Jul 6, 1:40 PM EDTSpecial Weather StatementLMKHardin20 min
Jul 6, 2:05 PM EDTSpecial Weather StatementLMKHardin25 min
Jul 6, 2:17 PM EDTSpecial Weather StatementLMKNelson28 min
Jul 6, 2:20 PM EDTSevere Thunderstorm WarningLMKBreckinridge25 min
Jul 6, 2:44 PM EDTSevere Thunderstorm WarningLMKBreckinridge31 min
Jul 6, 2:45 PM EDTSpecial Weather StatementLMKBullitt, Nelson30 min
Jul 6, 2:51 PM EDTSpecial Weather StatementLMKMercer24 min
Jul 6, 3:04 PM EDTSevere Thunderstorm WarningLMKAnderson, Mercer, Woodford26 min
Jul 6, 3:25 PM EDTSevere Thunderstorm WarningLMKAnderson, Mercer, Woodford35 min
Jul 6, 3:56 PM EDTSpecial Weather StatementLMKJefferson34 min
Jul 6, 3:56 PM EDTSpecial Weather StatementLMKWoodford34 min
Jul 6, 4:21 PM EDTSpecial Weather StatementLMKJefferson24 min
Jul 6, 4:25 PM EDTSpecial Weather StatementLMKScott20 min
Jul 6, 4:26 PM EDTSpecial Weather StatementLMKNicholas19 min
Jul 6, 4:42 PM EDTSpecial Weather StatementLMKShelby18 min
Jul 6, 4:46 PM EDTSpecial Weather StatementLMKWashington14 min
Jul 6, 4:49 PM EDTAreal Flood AdvisoryLMKScott116 min
Jul 6, 4:53 PM EDTSpecial Weather StatementLMKNicholas22 min
Jul 6, 4:57 PM EDTSpecial Weather StatementLMKShelby18 min
Jul 6, 5:00 PM EDTSpecial Weather StatementLMKScott30 min
Jul 6, 5:03 PM EDTSevere Thunderstorm WarningLMKBourbon, Harrison, Nicholas27 min
Jul 6, 5:16 PM EDTSpecial Weather StatementLMKShelby14 min
Jul 6, 5:19 PM EDTAreal Flood AdvisoryLMKBourbon, Nicholas90 min
Jul 6, 5:25 PM EDTSpecial Weather StatementLMKOldham20 min
Jul 6, 5:29 PM EDTSpecial Weather StatementLMKHenry16 min
Jul 6, 5:44 PM EDTSpecial Weather StatementLMKTrimble31 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.