Alert archive / Kentucky / Tornado Warnings in 2011

Tornado Warning 32, NWS Louisville, KY

April 20, 2011Bullitt County, Hardin County, Jefferson County, Kentucky; Clark County, Floyd County, Harrison County, Indiana

NWS Louisville, KY issued this tornado warning at Apr 20, 2011, 12:04 AM EDT for Bullitt County, Hardin County, Jefferson County, Kentucky; Clark County, Floyd County, Harrison County, Indiana. It was in force for 56 min. 14 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, 12:04 AM EDT (04:04 UTC)
Expired: Apr 20, 2011, 1:00 AM EDT
In force: 56 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Clark County, IN, Floyd County, IN, Harrison County, IN, Bullitt County, KY, Hardin County, KY, Jefferson County, KY

The radar

The Louisville radar (KLVX), 32 km from the middle of the area, began a volume at 04:04 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, 12:15 AM EDT	TSTM WND DMG	2 S Prospect, KY	TREE DOWN AND SIDING BLOWN OFF HOUSE NEAR FINCASTL AREA.
Apr 20, 12:15 AM EDT	TSTM WND DMG	New Albany, IN	ROOF OFF A HOUSE IN EASTERN NEW ALBANY ON VINCENNES.
Apr 20, 12:23 AM EDT	TSTM WND DMG	1 Sse New Albany, IN	STRAIGHT-LINED WIND DAMAGE WITH SPEEDS ESTIMATED AT 60-65 MPH OVER A PATH LENGTH OF 0.4 MILES AND WIDTH OF 390 YARDS. MOST INTENSE DAMAGE WAS AT A CAR WASH AT THE JUNCTION OF VINCENNES AND ELM STREETS...WHERE THE TOP OF THE CAR WASH WAS BLOWN DOWN. A LOT OF LA
Apr 20, 12:25 AM EDT	TSTM WND DMG	New Albany, IN	POWER TRANSFORMERS BLOWING WEST OF THE CITY
Apr 20, 12:27 AM EDT	TSTM WND DMG	New Albany, IN	POWER TRANSFORMERS REPORTED BLOWING.
Apr 20, 12:28 AM EDT	TORNADO	1 E Clarksville, IN	EF-1 TORNADO WITH WIND SPEEDS OF 80-90 MPH. PATH LENGTH 1.2 MILES AND WIDTH BETWEEN 100 AND 200 YARDS. TORNADO STARTED IN SUNSET TRAILER PARK WHERE MULTIPLE TRAILERS WERE DAMAGED ALONG WITH TREES AND POWERLINES. MORE SIGNIFICANT DAMAGE OCCURRED NORTHEAST WHERE
Apr 20, 12:28 AM EDT	TORNADO	1 Sse Cementville, IN	EF-0 TORNADO WITH WIND SPEEDS ESTIMATED AT 70-75 MPH. PATH LENGTH WAS 0.1 MILES WITH WIDTH OF 75 YARDS. TORNADO SNAPPED TREES AND DAMAGED A SHED AS WELL AS SHINGLES. TORNADO BEGAN ON THE EAST SIDE OF THE SUNSET TRAILER PARK AND ENDED AT CHALESTOWN PIKE.
Apr 20, 12:29 AM EDT	TSTM WND DMG	6 Se Louisville, KY	POWER LINE FLASHES REPORTED
Apr 20, 12:30 AM EDT	TSTM WND DMG	Louisville, KY	THE CITY OF LOUISVILLE REPORTS NUMEROUS TREES DOWN THROUGHOUT THE METRO AREA.
Apr 20, 12:35 AM EDT	TSTM WND DMG	Jeffersonville, IN	WIND DAMAGE AT THE 3100 BLOCK OF HOLMANS LANE. TWO MOBILE HOMES DESTROYED AT THE SUNSET MOBILE HOME PARK. OTHER TRAILERS WERE OFF THEIR FOUNDATIONS. STRUCTURAL DAMAGE TO A CHURCH. SIX POWER POLES DOWNED. WIRES DOWN.
Apr 20, 12:39 AM EDT	TSTM WND DMG	St. Matthews, KY	POWER LINE FLASHES REPORTED
Apr 20, 12:39 AM EDT	TSTM WND GST 60	Brooks, KY
Apr 20, 12:49 AM EDT	TSTM WND DMG	Hillview, KY	NUMEROUS TREES DOWN
Apr 20, 1:05 AM EDT	TSTM WND DMG	Prospect, KY	TREES AND POWER LINES DOWN

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, 4.1 hours before the alert went out and 216 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.

232 
WFUS53 KLMK 200404
TORLMK
INC019-043-061-KYC029-093-111-200500-
/O.NEW.KLMK.TO.W.0032.110420T0404Z-110420T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1204 AM EDT WED APR 20 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  BULLITT COUNTY IN NORTH CENTRAL KENTUCKY...
  NORTHERN HARDIN COUNTY IN NORTH CENTRAL KENTUCKY...
  JEFFERSON COUNTY IN NORTH CENTRAL KENTUCKY...
  THIS INCLUDES THE CITY OF LOUISVILLE...
  SOUTHERN CLARK COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHEASTERN FLOYD COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHEASTERN HARRISON COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 100 AM EDT...

* AT 1159 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 20 MILES WEST OF EVANS LANDING...MOVING EAST AT
  65 MPH.

* THIS TORNADIC STORM WILL ALSO IMPACT...
  LOUISVILLE METRO...
  VALLEY STATION...
  ST. MATTHEWS...
  SHIVELY...
  PROSPECT...
  PLEASURE RIDGE PARK...
  MACEDONIA AND BUENA VISTA...
  FISHTOWN AND SUGAR GROVE...
  BARRALLTON AND GAP IN KNOB...
  HUNTERS HOLLOW AND BROOKS...

THIS INCLUDES INTERSTATE 65 IN KENTUCKY BETWEEN MILE MARKERS 112 AND 
137....INTERSTATE 65 IN INDIANA BETWEEN MILE MARKERS 0 AND 
7...INTERSTATE 64 IN KENTUCKY BETWEEN MILE MARKERS 10 AND 8...AND 
INTERSTATE 71 IN KENTUCKY BETWEEN MILE MARKERS 1 AND 9.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...WIDESPREAD DAMAGING WINDS IN EXCESS OF 
70 MPH ARE LIKELY. SEEK SHELTER NOW! TORNADOES AT NIGHT CAN BE 
EXTREMELY DANGEROUS. DO NOT WAIT UNTIL YOU SEE OR HEAR THE TORNADO. 
IT MAY BE TOO LATE.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LOUISVILLE.

&&

LAT...LON 3843 8570 3839 8564 3838 8564 3826 8542
      3809 8547 3808 8548 3801 8552 3800 8550
      3792 8557 3792 8558 3791 8558 3788 8560
      3787 8597 3813 8604
TIME...MOT...LOC 0404Z 254DEG 55KT 3799 8626

$$

AL

4 follow-up statements

966 
WWUS53 KLMK 200425
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1225 AM EDT WED APR 20 2011

INC019-043-061-KYC029-093-111-200500-
/O.CON.KLMK.TO.W.0032.000000T0000Z-110420T0500Z/
CLARK IN-HARRISON IN-FLOYD IN-JEFFERSON KY-BULLITT KY-HARDIN KY-
1225 AM EDT WED APR 20 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR NORTHERN
HARDIN...BULLITT...JEFFERSON...SOUTHEASTERN FLOYD...SOUTHEASTERN
HARRISON AND SOUTHERN CLARK COUNTIES...

AT 1222 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR MACEDONIA...MOVING EAST AT 60 MPH.

* THE TORNADO WILL ALSO IMPACT...
  VALLEY STATION...
  ST. MATTHEWS...
  SHIVELY...
  PROSPECT...
  PLEASURE RIDGE PARK...
  BARRALLTON...
  HUNTERS HOLLOW AND BROOKS...
  ZONETON AND HEBRON ESTATES...
  THIXTON AND MOUNT WASHINGTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION...STRAIGHT LINE WINDS IN EXCESS OF 70 MPH WINDS WILL BE 
POSSIBLE! 

DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. THEY DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES
PREVENT PEOPLE FROM GETTING OUT OF THE STORM'S PATH AND TO SHELTER.
IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF YOUR VEHICLE
AND LIE FLAT IN A DITCH AS A LAST RESORT.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3843 8570 3840 8565 3838 8564 3826 8542
      3810 8547 3788 8560 3787 8597 3813 8604
TIME...MOT...LOC 0425Z 255DEG 51KT 3806 8592

$$

AL

773 
WWUS53 KLMK 200441
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1241 AM EDT WED APR 20 2011

INC061-200451-
/O.CAN.KLMK.TO.W.0032.000000T0000Z-110420T0500Z/
HARRISON IN-
1241 AM EDT WED APR 20 2011

...THE TORNADO WARNING FOR SOUTHEASTERN HARRISON COUNTY IS
CANCELLED...

THE TORNADIC STORM HAS MOVED EAST OF HARRISON COUNTY SO THE WARNING 
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 3838 8564 3827 8543 3823 8543 3810 8547
      3789 8559 3787 8589 3828 8588 3843 8570
TIME...MOT...LOC 0441Z 255DEG 51KT 3810 8562

$$

INC019-043-KYC029-093-111-200500-
/O.CON.KLMK.TO.W.0032.000000T0000Z-110420T0500Z/
CLARK IN-FLOYD IN-JEFFERSON KY-BULLITT KY-HARDIN KY-
1241 AM EDT WED APR 20 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR NORTHERN
HARDIN...BULLITT...JEFFERSON...EASTERN FLOYD AND SOUTHERN CLARK
COUNTIES...

AT 1236 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR HUNTERS HOLLOW...MOVING EAST AT 60 MPH.

* THE TORNADO WILL ALSO IMPACT...
  VALLEY STATION...
  ST. MATTHEWS...
  SHIVELY...
  PROSPECT...
  PLEASURE RIDGE PARK...
  ROUTT AND FISHERVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3838 8564 3827 8543 3823 8543 3810 8547
      3789 8559 3787 8589 3828 8588 3843 8570
TIME...MOT...LOC 0441Z 255DEG 51KT 3810 8562

$$

AL

167 
WWUS53 KLMK 200448
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1248 AM EDT WED APR 20 2011

INC019-043-KYC093-200458-
/O.CAN.KLMK.TO.W.0032.000000T0000Z-110420T0500Z/
CLARK IN-FLOYD IN-HARDIN KY-
1248 AM EDT WED APR 20 2011

...THE TORNADO WARNING FOR NORTHERN HARDIN...SOUTHEASTERN FLOYD AND
SOUTHERN CLARK 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 3827 8543 3823 8543 3810 8547 3792 8558
      3789 8559 3788 8582 3812 8567 3837 8562
TIME...MOT...LOC 0448Z 255DEG 51KT 3812 8550

$$

KYC029-111-200500-
/O.CON.KLMK.TO.W.0032.000000T0000Z-110420T0500Z/
JEFFERSON KY-BULLITT KY-
1248 AM EDT WED APR 20 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR BULLITT
AND EASTERN JEFFERSON COUNTIES...

AT 1246 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR THIXTON...MOVING EAST AT 60 MPH.

* THE TORNADO WILL ALSO IMPACT...

  MAINLY AREAS OF EASTERN BULLITT AND EASTERN JEFFERSON COUNTIES.

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 3827 8543 3823 8543 3810 8547 3792 8558
      3789 8559 3788 8582 3812 8567 3837 8562
TIME...MOT...LOC 0448Z 255DEG 51KT 3812 8550

$$

MP

711 
WWUS53 KLMK 200502
SVSLMK

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

KYC029-111-200511-
/O.EXP.KLMK.TO.W.0032.000000T0000Z-110420T0500Z/
JEFFERSON KY-BULLITT KY-
102 AM EDT WED APR 20 2011

...THE TORNADO WARNING FOR EASTERN BULLITT AND EASTERN JEFFERSON 
COUNTIES HAS EXPIRED...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA. MODERATE TO HEAVY RAIN...GUSTY WINDS...AND LIGHTNING 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 3827 8543 3823 8543 3810 8547 3792 8558
      3789 8559 3788 8582 3812 8567 3837 8562
TIME...MOT...LOC 0448Z 255DEG 51KT 3811 8550

$$

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	Hancock	49 min
Apr 19, 10:51 PM EDT	Severe Thunderstorm Warning	LMK	Hancock	24 min
Apr 19, 10:59 PM EDT	Tornado Warning	LMK	Hancock	46 min
Apr 19, 11:11 PM EDT	Severe Thunderstorm Warning	LMK	Hancock, Ohio	34 min
Apr 19, 11:29 PM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hancock, Meade	46 min
Apr 19, 11:34 PM EDT	Tornado Warning	LMK	Meade	41 min
Apr 19, 11:45 PM EDT	Severe Thunderstorm Warning	LMK	Hancock, Ohio	30 min
Apr 19, 11:54 PM EDT	Tornado Warning	LMK	Breckinridge, Meade	36 min
Apr 20, 12:13 AM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hancock, Hardin, Meade, Ohio	47 min
Apr 20, 12:17 AM EDT	Tornado Warning	LMK	Trimble	43 min
Apr 20, 12:25 AM EDT	Tornado Warning	LMK	Henry, Oldham, Trimble	50 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
Apr 20, 10:24 AM EDT	River Flood Warning	LMK	Jefferson, Oldham	15 days
Apr 20, 10:24 AM EDT	River Flood Warning	LMK	Jefferson, Meade	49 hr
Apr 20, 10:24 AM EDT	River Flood Warning	LMK	Breckinridge, Hancock	17 days
Apr 19, 11:47 PM EDT	Tornado Warning	LMK	Crawford, Perry	12 min
Apr 20, 12:19 AM EDT	Severe Thunderstorm Warning	LMK	Crawford, Floyd, Harrison, Washington	11 min
Apr 20, 12:35 AM EDT	Tornado Warning	LMK	Jefferson	25 min

Nearby

Tornado Warnings in Kentucky, 2011 Tornado Warnings in Indiana, 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.