Alert archive / Kentucky / Tornado Warnings in 2011

Tornado Warning 15, NWS Louisville, KY

April 4, 2011Butler County, Grayson County, Ohio County, Kentucky

NWS Louisville, KY issued this tornado warning at Apr 4, 2011, 12:17 PM CDT for Butler County, Grayson County, Ohio County, Kentucky. It was in force for 13 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
Apr 4, 2011, 12:17 PM CDT (17:17 UTC)
Expired
Apr 4, 2011, 12:30 PM CDT
In force
13 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon

Counties Butler County, KY, Grayson County, KY, Ohio County, KY

What was reported inside it

TimeReportWhereRemark
Apr 4, 12:38 PM CDTTORNADO2 N Welchs Creek, KYAN NWS STORM SURVEY CONFIRMED AN EF1 TORNADO FIRST TOUCHED DOWN NEAR THE BUTLER AND GRAYSON COUNTY BORDER IN A FIELD IMMEDIATELY NORTH OF DOGCREEK ROAD. THE TORNADO TRAVELLED EAST ACROSS RT 79 AND DISSIPATED CLOSE TO THE INTERSECTION OF DELMAR LINDSEY LANE AND

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 4, 7:22 AM CDTTornado WatchSPC7 hr
Apr 4, 11:34 AM CDTTornado WatchSPC5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.3 hours before the alert went out and 141 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, Nashville Metro, TN at 12:00Z on 2011-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 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, Nashville Metro, TN at 12:00Z on 2011-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 square meters per square second.19395878Sfc1 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
68 J/kg
Mixed-layer CIN
-640 J/kg
Mixed-layer LCL
855 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
507 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

677 
WFUS53 KLMK 041717
TORLMK
KYC031-085-183-041730-
/O.NEW.KLMK.TO.W.0015.110404T1717Z-110404T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1217 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN OHIO COUNTY IN NORTHWEST KENTUCKY...
  NORTHERN BUTLER COUNTY IN SOUTH CENTRAL KENTUCKY...
  WESTERN GRAYSON COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 1230 PM CDT...

* AT 1215 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR PRENTISS...MOVING NORTHEAST AT 60 MPH.

* THIS TORNADIC STORM WILL ALSO IMPACT...
  WHITE RUN AND JUGVILLE...
  DO STOP...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A VEHICLE OR OUTDOORS...MOVE TO
THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.

TO REPORT SEVERE WEATHER OR FLOODING TO THE NATIONAL WEATHER 
SERVICE...CALL TOLL FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU 
CAN DO SO SAFELY.

&&

LAT...LON 3748 8658 3738 8651 3727 8684 3737 8691
TIME...MOT...LOC 1717Z 241DEG 54KT 3736 8680

$$

TWF

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 8:04 PM CDTWind AdvisoryLMKAdair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more18 hr
Apr 4, 9:56 AM CDTSpecial Weather StatementLMKBreckinridge, Ohio19 min
Apr 4, 10:51 AM CDTSpecial Weather StatementLMKBreckinridge, Hancock, Meade24 min
Apr 4, 11:22 AM CDTSpecial Weather StatementLMKOhio23 min
Apr 4, 11:38 AM CDTSevere Thunderstorm WarningLMKBreckinridge, Grayson, Hancock, Ohio22 min
Apr 4, 11:52 AM CDTSevere Thunderstorm WarningLMKOhio23 min
Apr 4, 12:01 PM CDTSpecial Weather StatementLMKBreckinridge, Butler, Hancock, Logan, Ohio44 min
Apr 4, 12:05 PM CDTSevere Thunderstorm WarningLMKButler, Grayson, Ohio25 min
Apr 4, 12:06 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Hancock, Meade24 min
Apr 4, 12:16 PM CDTSevere Thunderstorm WarningLMKButler, Logan, Simpson, Warren29 min
Apr 4, 12:22 PM CDTTornado WarningLMKButler, Logan, Warren23 min
Apr 4, 12:23 PM CDTSevere Thunderstorm WarningLMKJefferson, Meade22 min
Apr 4, 12:26 PM CDTTornado WarningLMKLogan, Simpson34 min
Apr 4, 12:27 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Grayson, Hardin33 min
Apr 4, 12:29 PM CDTAreal Flood AdvisoryLMKBreckinridge, Butler, Grayson, Hancock, Logan, Meade and 1 more5 hr
Apr 4, 12:32 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Bullitt, Hardin, Meade43 min
Apr 4, 12:32 PM CDTTornado WarningLMKButler, Grayson28 min
Apr 4, 12:43 PM CDTTornado WarningLMKButler, Edmonson, Grayson, Hart, Warren32 min
Apr 4, 12:46 PM CDTSevere Thunderstorm WarningLMKAllen, Barren, Edmonson, Logan, Simpson, Warren44 min
Apr 4, 12:48 PM CDTTornado WarningLMKLogan, Simpson27 min
Apr 4, 12:55 PM CDTSevere Thunderstorm WarningLMKBullitt, Hardin, Larue, Nelson35 min
Apr 4, 1:03 PM CDTSevere Thunderstorm WarningLMKGreen, Hardin, Hart, Larue, Marion, Nelson and 1 more27 min
Apr 4, 1:06 PM CDTSpecial Weather StatementLMKHenry, Jefferson, Oldham, Shelby24 min
Apr 4, 1:10 PM CDTAreal Flood AdvisoryLMKBullitt, Edmonson, Hardin, Hart, Jefferson, Warren4 hr
Apr 4, 1:10 PM CDTTornado WarningLMKGreen, Hart, Larue, Marion, Taylor35 min
Apr 4, 1:18 PM CDTSevere Thunderstorm WarningLMKAnderson, Nelson, Shelby, Spencer, Washington27 min
Apr 4, 1:32 PM CDTSevere Thunderstorm WarningLMKAllen, Barren, Edmonson, Green, Hart, Metcalfe and 2 more43 min
Apr 4, 1:37 PM CDTSevere Thunderstorm WarningLMKMarion, Mercer, Washington23 min
Apr 4, 1:46 PM CDTTornado WarningLMKMarion29 min
Apr 4, 1:58 PM CDTSpecial Weather StatementLMKBourbon, Franklin, Harrison, Nicholas, Scott, Woodford47 min
Apr 4, 2:03 PM CDTSevere Thunderstorm WarningLMKFayette, Garrard, Jessamine, Mercer, Woodford27 min
Apr 4, 2:15 PM CDTAreal Flood AdvisoryLMKAllen, Barren, Green3 hr
Apr 4, 2:21 PM CDTAreal Flood AdvisoryLMKSimpson3 hr
Apr 4, 2:22 PM CDTSevere Thunderstorm WarningLMKBourbon, Clark, Fayette, Madison23 min
Apr 4, 2:25 PM CDTSpecial Weather StatementLMKAdair, Clinton, Cumberland, Green, Metcalfe, Monroe and 1 more65 min
Apr 4, 2:47 PM CDTSevere Thunderstorm WarningLMKClinton, Cumberland, Metcalfe, Monroe, Russell43 min
Apr 4, 2:53 PM CDTSevere Thunderstorm WarningLMKGarrard, Madison37 min
Apr 4, 3:03 PM CDTSevere Thunderstorm WarningLMKAdair, Casey, Lincoln, Russell27 min
Apr 4, 3:06 PM CDTTornado WarningLMKAdair, Casey, Russell24 min
Apr 4, 3:15 PM CDTAreal Flood AdvisoryLMKBoyle, Casey, Larue, Marion, Mercer, Nelson and 3 more2 hr
Apr 4, 3:30 PM CDTSevere Thunderstorm WarningLMKGarrard, Madison30 min

Nearby

Tornado Warnings in Kentucky, 2011Every tornado warning in 2011Tornadoes in 2011

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.