Alert archive / Kentucky / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 310, NWS Louisville, KY

August 11, 20184 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Aug 11, 2018, 6:24 PM EDT for 4 counties in Kentucky. It was in force for 36 min. 3 reports 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
Aug 11, 2018, 6:24 PM EDT (22:24 UTC)
Expired
Aug 11, 2018, 7:00 PM EDT
In force
36 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bourbon County, KY, Fayette County, KY, Scott County, KY, Woodford County, KY

The radar

The Jackson,KY radar (KJKL), 118 km from the middle of the area, began a volume at 22:26 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
Aug 11, 6:30 PM EDTTSTM WND DMG4 Ene Midway, KYAT LEAST 5 LARGE TREES DOWN IN SOUTHERN SCOTT COUNTY. SOME POWER OUTAGES ALSO.
Aug 11, 6:35 PM EDTTSTM WND DMGMidway, KYMULTIPLE TREES DOWN IN THREE DIFFERENT AREAS IN MIDWAY.
Aug 11, 6:44 PM EDTTSTM WND DMG6 Ese Midway, KY1 SMALL TREE DOWN.

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, 10.4 hours before the alert went out and 160 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 2018-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 433 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 2018-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 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
433 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
977 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

177 
WUUS53 KLMK 112224
SVRLMK
KYC017-067-209-239-112300-
/O.NEW.KLMK.SV.W.0310.180811T2224Z-180811T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
624 PM EDT SAT AUG 11 2018

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Northern Woodford County in central Kentucky...
  Southern Scott County in central Kentucky...
  Southwestern Bourbon County in central Kentucky...
  Fayette County in central Kentucky...

* Until 700 PM EDT.

* At 624 PM EDT, a severe thunderstorm was located near Georgetown,
  moving southeast at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lexington, Georgetown, Versailles, Meadowthorpe, Dunbar High
  School, Thoroughbred Acres, Cardinal Hill, Cadentown, Bryan Station
  and Northland.

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 3801 8430 3801 8484 3817 8478 3819 8472
      3821 8473 3824 8438 3806 8428 3803 8429
      3802 8428
TIME...MOT...LOC 2224Z 334DEG 13KT 3814 8459 

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

AMS
1 follow-up statement
946 
WWUS53 KLMK 112249
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
649 PM EDT SAT AUG 11 2018

KYC017-112258-
/O.CAN.KLMK.SV.W.0310.000000T0000Z-180811T2300Z/
Bourbon KY-
649 PM EDT SAT AUG 11 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BOURBON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3801 8440 3801 8484 3817 8478 3819 8472
      3820 8449
TIME...MOT...LOC 2248Z 334DEG 13KT 3806 8454 

$$

KYC067-209-239-112300-
/O.CON.KLMK.SV.W.0310.000000T0000Z-180811T2300Z/
Woodford KY-Scott KY-Fayette KY-
649 PM EDT SAT AUG 11 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHERN WOODFORD...SOUTHWESTERN SCOTT AND NORTHWESTERN FAYETTE
COUNTIES...

At 648 PM EDT, a severe thunderstorm was located over Meadowthorpe,
moving southeast at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Law enforcement reported trees down near Georgetown.

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

Locations impacted include...
Lexington, Georgetown, Versailles, Meadowthorpe, Dunbar High School,
Thoroughbred Acres, Cardinal Hill, Cadentown, Northland and
Highlands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

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

&&

LAT...LON 3801 8440 3801 8484 3817 8478 3819 8472
      3820 8449
TIME...MOT...LOC 2248Z 334DEG 13KT 3806 8454 

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

AMS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 3:53 AM EDTDense Fog AdvisoryLMKAdair, Allen, Barren, Casey, Clinton, Cumberland and 6 more6 hr
Aug 11, 2:45 PM EDTSpecial Weather StatementLMKHardin30 min
Aug 11, 4:12 PM EDTSpecial Weather StatementLMKOhio33 min
Aug 11, 4:23 PM EDTSpecial Weather StatementLMKMarion37 min
Aug 11, 4:31 PM EDTSpecial Weather StatementLMKBoyle29 min
Aug 11, 4:50 PM EDTSpecial Weather StatementLMKOhio25 min
Aug 11, 5:02 PM EDTSpecial Weather StatementLMKTaylor28 min
Aug 11, 5:13 PM EDTSpecial Weather StatementLMKLincoln17 min
Aug 11, 5:34 PM EDTSpecial Weather StatementLMKOhio26 min
Aug 11, 5:38 PM EDTSpecial Weather StatementLMKBourbon, Harrison, Nicholas, Scott37 min
Aug 11, 5:42 PM EDTSpecial Weather StatementLMKCasey33 min
Aug 11, 5:53 PM EDTSevere Thunderstorm WarningLMKBourbon, Clark37 min
Aug 11, 6:10 PM EDTSpecial Weather StatementLMKFayette35 min
Aug 11, 6:26 PM EDTSpecial Weather StatementLMKRussell34 min
Aug 11, 6:38 PM EDTSpecial Weather StatementLMKFranklin37 min
Aug 11, 6:42 PM EDTSevere Thunderstorm WarningLMKAnderson, Franklin, Woodford48 min
Aug 11, 6:56 PM EDTSevere Thunderstorm WarningLMKFayette, Scott, Woodford34 min
Aug 11, 7:09 PM EDTSpecial Weather StatementLMKAdair36 min
Aug 11, 7:25 PM EDTSpecial Weather StatementLMKWoodford35 min
Aug 11, 7:27 PM EDTSevere Thunderstorm WarningLMKAnderson, Franklin, Woodford37 min
Aug 11, 7:37 PM EDTFlash Flood WarningLMKFranklin, Woodford3 hr
Aug 11, 7:40 PM EDTSpecial Weather StatementLMKSpencer35 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2018Every severe thunderstorm warning in 2018

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.