Alert archive / Kentucky / Tornado Warnings in 2011

Tornado Warning 18, NWS Louisville, KY

April 4, 2011Butler County, Grayson County, Kentucky

NWS Louisville, KY issued this tornado warning at Apr 4, 2011, 12:32 PM CDT for Butler County, Grayson County, Kentucky. It was in force for 28 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: Apr 4, 2011, 12:32 PM CDT (17:32 UTC)
Expired: Apr 4, 2011, 1:00 PM CDT
In force: 28 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Butler County, KY, Grayson County, KY

The radar

The Louisville radar (KLVX), 80 km from the middle of the area, began a volume at 17:34 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

Time	Report	Where	Remark
Apr 4, 12:38 PM CDT	TORNADO	2 N Welchs Creek, KY	AN 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
Apr 4, 12:41 PM CDT	TSTM WND DMG	Caneyville, KY	DISPATCH REPORTS MOBILE HOME ROOF BLOWN OFF... TREES UPROOTED... OUTBUILDINGS DOWN. HAM SUPPLEMENTS THIS REPORT FROM GRAYSON CO. SHERIFF DEPT. OF 3 GRAIN BINS OVERTURNED
Apr 4, 12:41 PM CDT	TORNADO	Caneyville, KY	AN NWS STORM SURVEY CONFIRMED AN EF1 TORNADO IN SOUTHWEST GRAYSON COUNTY WITH WINDS AROUND 100 MPH. THE TORNADO TOUCHED DOWN IN CANEYVILLE NEAR THE INTERSECTION OF NORTH MAIN STREET AND RIVER PARK DRIVE. THE TORNADO TRAVELED EAST THROUGH THE CANEYVILLE MILLING

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.

Issued	Product	Office	Lasted
Apr 4, 7:22 AM CDT	Tornado Watch	SPC	7 hr
Apr 4, 11:34 AM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.5 hours before the alert went out and 144 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: 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.

154 
WFUS53 KLMK 041732
TORLMK
KYC031-085-041800-
/O.NEW.KLMK.TO.W.0018.110404T1732Z-110404T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1232 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN BUTLER COUNTY IN SOUTH CENTRAL KENTUCKY...
  GRAYSON COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 100 PM CDT...

* AT 1229 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR NEAFUS...MOVING NORTHEAST AT 50 MPH.

* THIS TORNADIC STORM WILL ALSO IMPACT...
  LEITCHFIELD...
  CANEYVILLE AND DO STOP...
  POST AND PETH...
  MILLWOOD AND BLACK ROCK...
  HANGING ROCK AND LILAC...

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 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 3740 8663 3743 8664 3760 8632 3743 8617
      3735 8664 3738 8666
TIME...MOT...LOC 1732Z 246DEG 42KT 3739 8662

$$

TWF

1 follow-up statement

058 
WWUS53 KLMK 041754
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
154 PM EDT MON APR 4 2011

KYC031-041804-
/O.CAN.KLMK.TO.W.0018.000000T0000Z-110404T1800Z/
BUTLER KY-
1254 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR NORTHERN BUTLER COUNTY IS CANCELLED...

TO REPORT DAMAGING WINDS...LARGE HAIL...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 3759 8633 3759 8631 3743 8617 3739 8640
      3747 8641 3753 8644
TIME...MOT...LOC 1754Z 250DEG 46KT 3748 8627

$$

KYC085-041800-
/O.CON.KLMK.TO.W.0018.000000T0000Z-110404T1800Z/
GRAYSON KY-
1254 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR CENTRAL
GRAYSON COUNTY...

AT 1253 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
AND BRIEF RAIN-WRAPPED TORNADOES. THIS TORNADO WAS LOCATED NEAR
LEITCHFIELD...MOVING EAST AT 55 MPH.

* THE TORNADO WILL ALSO IMPACT...
  LEITCHFIELD...
  SKAGGSTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT DAMAGING WINDS...LARGE HAIL...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 3759 8633 3759 8631 3743 8617 3739 8640
      3747 8641 3753 8644
TIME...MOT...LOC 1754Z 250DEG 46KT 3748 8627

$$
JDG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 8:04 PM CDT	Wind Advisory	LMK	Adair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more	18 hr
Apr 4, 9:56 AM CDT	Special Weather Statement	LMK	Breckinridge, Ohio	19 min
Apr 4, 10:51 AM CDT	Special Weather Statement	LMK	Breckinridge, Hancock, Meade	24 min
Apr 4, 11:22 AM CDT	Special Weather Statement	LMK	Ohio	23 min
Apr 4, 11:38 AM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hancock, Ohio	22 min
Apr 4, 11:52 AM CDT	Severe Thunderstorm Warning	LMK	Ohio	23 min
Apr 4, 12:01 PM CDT	Special Weather Statement	LMK	Breckinridge, Butler, Hancock, Logan, Ohio	44 min
Apr 4, 12:05 PM CDT	Severe Thunderstorm Warning	LMK	Butler, Grayson, Ohio	25 min
Apr 4, 12:06 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock, Meade	24 min
Apr 4, 12:16 PM CDT	Severe Thunderstorm Warning	LMK	Butler, Logan, Simpson, Warren	29 min
Apr 4, 12:17 PM CDT	Tornado Warning	LMK	Butler, Grayson, Ohio	13 min
Apr 4, 12:22 PM CDT	Tornado Warning	LMK	Butler, Logan, Warren	23 min
Apr 4, 12:23 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson, Meade	22 min
Apr 4, 12:26 PM CDT	Tornado Warning	LMK	Logan, Simpson	34 min
Apr 4, 12:27 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin	33 min
Apr 4, 12:29 PM CDT	Areal Flood Advisory	LMK	Breckinridge, Butler, Grayson, Hancock, Logan, Meade and 1 more	5 hr
Apr 4, 12:32 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Bullitt, Hardin, Meade	43 min
Apr 4, 12:43 PM CDT	Tornado Warning	LMK	Butler, Edmonson, Grayson, Hart, Warren	32 min
Apr 4, 12:46 PM CDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Edmonson, Logan, Simpson, Warren	44 min
Apr 4, 12:48 PM CDT	Tornado Warning	LMK	Logan, Simpson	27 min
Apr 4, 12:55 PM CDT	Severe Thunderstorm Warning	LMK	Bullitt, Hardin, Larue, Nelson	35 min
Apr 4, 1:03 PM CDT	Severe Thunderstorm Warning	LMK	Green, Hardin, Hart, Larue, Marion, Nelson and 1 more	27 min
Apr 4, 1:06 PM CDT	Special Weather Statement	LMK	Henry, Jefferson, Oldham, Shelby	24 min
Apr 4, 1:10 PM CDT	Areal Flood Advisory	LMK	Bullitt, Edmonson, Hardin, Hart, Jefferson, Warren	4 hr
Apr 4, 1:10 PM CDT	Tornado Warning	LMK	Green, Hart, Larue, Marion, Taylor	35 min
Apr 4, 1:18 PM CDT	Severe Thunderstorm Warning	LMK	Anderson, Nelson, Shelby, Spencer, Washington	27 min
Apr 4, 1:32 PM CDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Edmonson, Green, Hart, Metcalfe and 2 more	43 min
Apr 4, 1:37 PM CDT	Severe Thunderstorm Warning	LMK	Marion, Mercer, Washington	23 min
Apr 4, 1:46 PM CDT	Tornado Warning	LMK	Marion	29 min
Apr 4, 1:58 PM CDT	Special Weather Statement	LMK	Bourbon, Franklin, Harrison, Nicholas, Scott, Woodford	47 min
Apr 4, 2:03 PM CDT	Severe Thunderstorm Warning	LMK	Fayette, Garrard, Jessamine, Mercer, Woodford	27 min
Apr 4, 2:15 PM CDT	Areal Flood Advisory	LMK	Allen, Barren, Green	3 hr
Apr 4, 2:21 PM CDT	Areal Flood Advisory	LMK	Simpson	3 hr
Apr 4, 2:22 PM CDT	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Fayette, Madison	23 min
Apr 4, 2:25 PM CDT	Special Weather Statement	LMK	Adair, Clinton, Cumberland, Green, Metcalfe, Monroe and 1 more	65 min
Apr 4, 2:47 PM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland, Metcalfe, Monroe, Russell	43 min
Apr 4, 2:53 PM CDT	Severe Thunderstorm Warning	LMK	Garrard, Madison	37 min
Apr 4, 3:03 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Lincoln, Russell	27 min
Apr 4, 3:06 PM CDT	Tornado Warning	LMK	Adair, Casey, Russell	24 min
Apr 4, 3:15 PM CDT	Areal Flood Advisory	LMK	Boyle, Casey, Larue, Marion, Mercer, Nelson and 3 more	2 hr
Apr 4, 3:30 PM CDT	Severe Thunderstorm Warning	LMK	Garrard, Madison	30 min

Nearby

Tornado Warnings in Kentucky, 2011 Every tornado warning in 2011 Tornadoes 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; radar from the NEXRAD Level II archive.