Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 33, NWS Louisville, KY

April 20, 20115 counties in Indiana; Trimble County, Kentucky

NWS Louisville, KY issued this tornado warning at Apr 20, 2011, 12:17 AM EDT for 5 counties in Indiana; Trimble County, Kentucky. It was in force for 43 min. 13 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 20, 2011, 12:17 AM EDT (04:17 UTC)
Expired: Apr 20, 2011, 1:00 AM EDT
In force: 43 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Clark County, IN, Floyd County, IN, Jefferson County, IN, Scott County, IN, Washington County, IN, Trimble County, KY

The radar

The Louisville radar (KLVX), 85 km from the middle of the area, began a volume at 04:18 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 20, 12:17 AM EDT	TSTM WND DMG	2 Sw Scottsburg, IN	TREE DOWN ON GARAGE ON SOUTH LAKE ROAD.
Apr 20, 12:19 AM EDT	TORNADO	Scottsburg, IN	EF-0 TORNADO WITH WIND SPEEDS OF 65-80 MPH. PATH LENGTH 5.2 MILES AND WIDTH 50 TO 100 YARDS. HOTEL NEAR I-65 WAS DAMAGED ON EAST SIDE OF SECOND FLOOR. SEVERAL NEARBY HOUSES HAD ROOF DAMAGE. MORE ROOFS DAMAGED IN SCOTTSVILLE AND NUMEROUS TREES AND BRANCHES WERE
Apr 20, 12:19 AM EDT	TORNADO	Scottsville, IN	EF-0 TORNADO WITH WIND SPEEDS OF 65-80 MPH. PATH LENGTH 5.2 MILES AND WIDTH 50 TO 100 YARDS. HOTEL NEAR I-65 WAS DAMAGED ON EAST SIDE OF SECOND FLOOR. SEVERAL NEARBY HOUSES HAD ROOF DAMAGE. MORE ROOFS DAMAGED IN SCOTTSVILLE AND NUMEROUS TREES AND BRANCHES WERE
Apr 20, 12:20 AM EDT	TSTM WND DMG	1 Wnw Scottsburg, IN	HOUSE ON SHARON DR. HAD TREE DOWN.
Apr 20, 12:20 AM EDT	TSTM WND DMG	2 W New Frankfort, IN	ROOF OF BARN AND LARGE GARAGE DAMAGED.
Apr 20, 12:20 AM EDT	TSTM WND DMG	3 Ne Austin, IN	BARN DAMAGED AND FENCING UPROOTED
Apr 20, 12:20 AM EDT	TSTM WND DMG	Galena, IN	TREES DOWN
Apr 20, 12:26 AM EDT	TSTM WND GST 65	Edwardsville, IN
Apr 20, 12:28 AM EDT	TSTM WND DMG	Deputy, IN	DAMAGE TO A BARN AND GARAGE NEAR STATE ROAD 3 IN DEPUTY. TREES AND POWER LINES WERE DOWNED COUNTY WIDE IN JEFFERSON COUNTY.
Apr 20, 12:29 AM EDT	TSTM WND DMG	Scottsburg, IN	TREES DOWNED COUNTYWIDE...SOME BLOCKING ROADS.
Apr 20, 12:29 AM EDT	TSTM WND GST 62	Austin, IN
Apr 20, 12:34 AM EDT	TSTM WND DMG	Dupont, IN	WIDESPREAD STRUCTURAL AND TREE DAMAGE AROUND DEPUTY... LANCASTER... AND MADISON... ESPECIALLY ON DEPUTY PIKE... 933W... 800W... AND BLAKE ROAD
Apr 20, 12:36 AM EDT	TSTM WND DMG	Lancaster, IN	TREES DOWN BETWEEN DEPUTY AND LANCASTER

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 19, 10:13 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.3 hours before the alert went out and 185 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: 1686 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 1003 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 387 m²/s²
0-3 km storm-relative helicity: 474 m²/s²
Significant tornado parameter: 4.3
Supercell composite: 18.7

Open this sounding in Storm Lab

The text

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

477 
WFUS53 KLMK 200417
TORLMK
INC019-043-077-143-175-KYC223-200500-
/O.NEW.KLMK.TO.W.0033.110420T0417Z-110420T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1217 AM EDT WED APR 20 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN TRIMBLE COUNTY IN NORTH CENTRAL KENTUCKY...
  CLARK COUNTY IN SOUTH CENTRAL INDIANA...
  FLOYD COUNTY IN SOUTH CENTRAL INDIANA...
  JEFFERSON COUNTY IN SOUTH CENTRAL INDIANA...
  SCOTT COUNTY IN SOUTH CENTRAL INDIANA...
  EASTERN WASHINGTON COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 100 AM EDT...

* AT 1213 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR GREENVILLE...MOVING NORTHEAST AT 30 MPH.

* THIS TORNADIC STORM WILL ALSO IMPACT...
  SCOTTSBURG...
  MADISON...
  CHESTNUT HILL AND BORDEN...
  CARWOOD AND WILSON...
  BLUE LICK AND MEMPHIS...
  HENRYVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...WIDESPREAD HURRICANE FORCE WINDS ARE
LIKELY. SEEK SHELTER NOW!

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 3884 8520 3821 8596 3825 8596 3825 8598
      3877 8616 3879 8609 3875 8599 3876 8592
      3873 8590 3873 8587 3881 8581 3883 8574
      3883 8565 3889 8558 3889 8556 3892 8555
      3893 8521
TIME...MOT...LOC 0417Z 225DEG 25KT 3840 8597

$$

DK

3 follow-up statements

266 
WWUS53 KLMK 200429
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1229 AM EDT WED APR 20 2011

INC175-200439-
/O.CAN.KLMK.TO.W.0033.000000T0000Z-110420T0500Z/
WASHINGTON IN-
1229 AM EDT WED APR 20 2011

...THE TORNADO WARNING FOR EASTERN WASHINGTON 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 3884 8520 3826 8590 3831 8591 3840 8588
      3858 8579 3867 8578 3879 8583 3880 8582
      3883 8574 3883 8565 3889 8558 3889 8556
      3892 8555 3893 8521
TIME...MOT...LOC 0429Z 225DEG 25KT 3846 8589

$$

INC019-043-077-143-KYC223-200500-
/O.CON.KLMK.TO.W.0033.000000T0000Z-110420T0500Z/
JEFFERSON IN-SCOTT IN-CLARK IN-FLOYD IN-TRIMBLE KY-
1229 AM EDT WED APR 20 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR
NORTHWESTERN TRIMBLE...NORTHEASTERN FLOYD...CLARK...EASTERN SCOTT AND
JEFFERSON COUNTIES...

AT 1227 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR WILSON...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL ALSO IMPACT...
  SCOTTSBURG...
  MADISON...
  WILSON...
  BLUE LICK AND MEMPHIS...
  HENRYVILLE...
  UNDERWOOD AND OTISCO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. ALSO...WIDESPREAD HURRICANE 
FORCE WINDS ARE LIKELY. SEEK SHELTER NOW!

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 3884 8520 3826 8590 3831 8591 3840 8588
      3858 8579 3867 8578 3879 8583 3880 8582
      3883 8574 3883 8565 3889 8558 3889 8556
      3892 8555 3893 8521
TIME...MOT...LOC 0429Z 225DEG 25KT 3846 8589

$$

MP

069 
WWUS53 KLMK 200442
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1242 AM EDT WED APR 20 2011

INC019-043-143-200452-
/O.CAN.KLMK.TO.W.0033.000000T0000Z-110420T0500Z/
SCOTT IN-CLARK IN-FLOYD IN-
1242 AM EDT WED APR 20 2011

...THE TORNADO WARNING FOR NORTHEASTERN FLOYD...CLARK AND EASTERN
SCOTT COUNTIES 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 3884 8520 3863 8547 3875 8554 3885 8562
      3889 8558 3889 8556 3892 8555 3893 8521
TIME...MOT...LOC 0442Z 224DEG 55KT 3887 8539

$$

INC077-KYC223-200500-
/O.CON.KLMK.TO.W.0033.000000T0000Z-110420T0500Z/
JEFFERSON IN-TRIMBLE KY-
1242 AM EDT WED APR 20 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR
NORTHWESTERN TRIMBLE AND JEFFERSON COUNTIES...

AT 1241 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR BELLEVIEW...MOVING NORTHEAST AT 65 MPH.

* THE TORNADO WILL ALSO IMPACT...
  MADISON...
  BARBERSVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. ALSO...WIDESPREAD HURRICANE 
FORCE WINDS ARE LIKELY. SEEK SHELTER NOW!

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 3884 8520 3863 8547 3875 8554 3885 8562
      3889 8558 3889 8556 3892 8555 3893 8521
TIME...MOT...LOC 0442Z 224DEG 55KT 3887 8539

$$

MP

935 
WWUS53 KLMK 200457
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1257 AM EDT WED APR 20 2011

INC077-KYC223-200506-
/O.EXP.KLMK.TO.W.0033.000000T0000Z-110420T0500Z/
JEFFERSON IN-TRIMBLE KY-
1257 AM EDT WED APR 20 2011

...THE TORNADO WARNING FOR NORTHWESTERN TRIMBLE AND JEFFERSON
COUNTIES HAS EXPIRED...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA. HEAVY RAINFALL AND GUSTY WINDS WILL CONTINUE OVER THE NEXT FEW 
HOURS. PONDING OF WATER ON ROADWAYS WILL BE POSSIBLE.

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 3884 8520 3863 8547 3875 8554 3885 8562
      3889 8558 3889 8556 3892 8555 3893 8521
TIME...MOT...LOC 0456Z 224DEG 55KT 3902 8519

$$

MP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 10:26 PM EDT	Special Weather Statement	LMK	Crawford, Dubois, Orange, Perry	49 min
Apr 19, 10:51 PM EDT	Severe Thunderstorm Warning	LMK	Crawford, Dubois, Orange, Perry	24 min
Apr 19, 10:59 PM EDT	Tornado Warning	LMK	Crawford, Dubois, Orange, Perry	46 min
Apr 19, 11:29 PM EDT	Severe Thunderstorm Warning	LMK	Perry	46 min
Apr 19, 11:34 PM EDT	Tornado Warning	LMK	Clark, Crawford, Floyd, Harrison, Orange, Perry and 2 more	41 min
Apr 19, 11:47 PM EDT	Tornado Warning	LMK	Crawford, Perry	12 min
Apr 19, 11:54 PM EDT	Tornado Warning	LMK	Harrison	36 min
Apr 20, 12:04 AM EDT	Tornado Warning	LMK	Clark, Floyd, Harrison	56 min
Apr 20, 12:19 AM EDT	Severe Thunderstorm Warning	LMK	Crawford, Floyd, Harrison, Washington	11 min
Apr 20, 12:25 AM EDT	Tornado Warning	LMK	Clark, Jefferson	50 min
Apr 20, 12:35 AM EDT	Tornado Warning	LMK	Jefferson	25 min
Apr 20, 10:24 AM EDT	River Flood Warning	LMK	Clark, Floyd	15 days
Apr 20, 10:24 AM EDT	River Flood Warning	LMK	Clark, Floyd, Harrison	49 hr
Apr 20, 10:24 AM EDT	River Flood Warning	LMK	Crawford, Perry	17 days
Apr 19, 11:11 PM EDT	Severe Thunderstorm Warning	LMK	Hancock, Ohio	34 min
Apr 19, 11:45 PM EDT	Severe Thunderstorm Warning	LMK	Hancock, Ohio	30 min
Apr 20, 12:13 AM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hancock, Hardin, Meade, Ohio	47 min
Apr 20, 12:38 AM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Grayson, Hardin, Hart, Larue, Nelson	37 min
Apr 20, 12:44 AM EDT	Severe Thunderstorm Warning	LMK	Anderson, Henry, Nelson, Shelby, Spencer	46 min
Apr 20, 12:49 AM EDT	Tornado Warning	LMK	Shelby, Spencer	26 min
Apr 20, 1:09 AM EDT	Severe Thunderstorm Warning	LMK	Marion, Nelson, Washington	36 min
Apr 20, 1:10 AM EDT	Severe Thunderstorm Warning	LMK	Barren, Butler, Edmonson, Grayson, Hart, Metcalfe and 1 more	35 min
Apr 20, 1:17 AM EDT	Areal Flood Advisory	LMK	Breckinridge, Grayson, Hancock, Ohio	3 hr
Apr 20, 1:18 AM EDT	Severe Thunderstorm Warning	LMK	Green, Larue, Marion, Taylor	42 min
Apr 20, 1:19 AM EDT	Severe Thunderstorm Warning	LMK	Anderson, Bourbon, Clark, Fayette, Franklin, Harrison and 6 more	41 min
Apr 20, 1:26 AM EDT	Severe Thunderstorm Warning	LMK	Boyle, Casey, Garrard, Jessamine, Lincoln, Madison and 2 more	34 min
Apr 20, 1:43 AM EDT	Severe Thunderstorm Warning	LMK	Butler, Logan, Simpson	47 min
Apr 20, 1:43 AM EDT	Tornado Warning	LMK	Bourbon, Fayette, Harrison, Scott	17 min
Apr 20, 1:50 AM EDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Butler, Edmonson, Hart, Metcalfe and 2 more	40 min
Apr 20, 1:58 AM EDT	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 1 more	32 min
Apr 20, 2:02 AM EDT	Severe Thunderstorm Warning	LMK	Boyle, Clark, Garrard, Jessamine, Lincoln, Madison	43 min
Apr 20, 2:02 AM EDT	Tornado Warning	LMK	Logan, Simpson	28 min
Apr 20, 2:07 AM EDT	Flash Flood Warning	LMK	Butler, Edmonson, Grayson, Ohio	3 hr
Apr 20, 2:07 AM EDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Green, Lincoln, Russell, Taylor	38 min
Apr 20, 2:25 AM EDT	Tornado Warning	LMK	Allen, Simpson	35 min
Apr 20, 2:29 AM EDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Butler, Edmonson, Hart, Logan and 3 more	46 min
Apr 20, 2:49 AM EDT	Areal Flood Advisory	LMK	Barren, Boyle, Casey, Edmonson, Grayson, Green and 8 more	3 hr
Apr 20, 2:49 AM EDT	Severe Thunderstorm Warning	LMK	Adair, Boyle, Casey, Garrard, Green, Lincoln and 4 more	41 min
Apr 20, 2:52 AM EDT	Tornado Warning	LMK	Allen, Barren, Monroe	23 min
Apr 20, 3:13 AM EDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Cumberland, Metcalfe, Monroe	32 min
Apr 20, 3:16 AM EDT	Severe Thunderstorm Warning	LMK	Adair, Barren, Casey, Clinton, Cumberland, Metcalfe and 2 more	29 min
Apr 20, 3:34 AM EDT	Special Weather Statement	LMK	Clinton, Cumberland	26 min
Apr 20, 3:47 AM EDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Clinton, Cumberland, Russell	28 min
Apr 20, 7:45 AM EDT	River Flood Advisory	LMK	Ohio	24 hr

Nearby

Tornado Warnings in Indiana, 2011 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.