Alert archive / Kentucky / Tornado Warnings in 2011

Tornado Warning 17, NWS Louisville, KY

April 4, 2011Logan County, Simpson County, Kentucky

NWS Louisville, KY issued this tornado warning at Apr 4, 2011, 12:26 PM CDT for Logan County, Simpson County, Kentucky. It was in force for 34 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: Apr 4, 2011, 12:26 PM CDT (17:26 UTC)
Expired: Apr 4, 2011, 1:00 PM CDT
In force: 34 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Logan County, KY, Simpson County, KY

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, 5.4 hours before the alert went out and 90 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.

238 
WFUS53 KLMK 041726
TORLMK
KYC141-213-041800-
/O.NEW.KLMK.TO.W.0017.110404T1726Z-110404T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1226 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  LOGAN COUNTY IN SOUTH CENTRAL KENTUCKY...
  NORTHERN SIMPSON COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 100 PM CDT...

* AT 1223 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE SQUALL LINE CAPABLE OF PRODUCING BRIEF RAIN-WRAPPED
  TORNADOES IN ADDITION TO WIDESPREAD STRAIGHT LINE WIND DAMAGE. THIS
  DANGEROUS STORM WAS LOCATED NEAR GORDONSVILLE...MOVING EAST AT 50
  MPH.

* THIS STORM WILL ALSO IMPACT...
  RUSSELLVILLE...
  COOPERSTOWN AND HOMER...
  DENNIS AND CHANDLERS CHAPEL...
  SOUTH UNION AND AUBURN...

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 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 3695 8705 3703 8674 3701 8669 3700 8668
      3688 8661 3684 8660 3668 8707
TIME...MOT...LOC 1726Z 258DEG 46KT 3685 8699

$$

MJ

2 follow-up statements

714 
WWUS53 KLMK 041735
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1235 PM CDT MON APR 4 2011

KYC141-213-041800-
/O.CON.KLMK.TO.W.0017.000000T0000Z-110404T1800Z/
LOGAN KY-SIMPSON KY-
1235 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR NORTHERN
SIMPSON AND CENTRAL LOGAN COUNTIES...

AT 1232 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
RUSSELLVILLE...MOVING EAST AT 55 MPH.

* THE TORNADO WILL ALSO IMPACT...
  RUSSELLVILLE...
  DENNIS AND CHANDLERS CHAPEL...
  SOUTH UNION AND AUBURN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3695 8705 3703 8674 3701 8669 3700 8668
      3688 8661 3684 8660 3668 8707
TIME...MOT...LOC 1735Z 258DEG 46KT 3687 8685

$$

MJ

100 
WWUS53 KLMK 041757
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1257 PM CDT MON APR 4 2011

KYC141-213-041807-
/O.EXP.KLMK.TO.W.0017.000000T0000Z-110404T1800Z/
LOGAN KY-SIMPSON KY-
1257 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR NORTHERN SIMPSON AND CENTRAL LOGAN
COUNTIES HAS EXPIRED...

THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE NO LONGER
SEVERE. HOWEVER STRONG STORMS REMAIN IN THE AREA. THESE ARE CAPABLE
OF PRODUCING PERIODS OF HEAVY RAIN AND DANGEROUS LIGHTNING.

A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN LOGAN AND SIMPSON 
COUNTIES UNTIL 115 PM CDT.

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 3695 8705 3703 8674 3701 8669 3700 8668
      3688 8661 3684 8660 3668 8707
TIME...MOT...LOC 1757Z 258DEG 46KT 3693 8650

$$

MJ

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, 12:27 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, 12:32 PM CDT	Tornado Warning	LMK	Butler, Grayson	28 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; the sounding from the Mesonet's radiosonde archive.