Alert archive / Kentucky / Tornado Warnings in 2011

Tornado Warning 41, NWS Louisville, KY

April 22, 2011Anderson County, Shelby County, Spencer County, Kentucky

NWS Louisville, KY issued this tornado warning at Apr 22, 2011, 6:01 PM EDT for Anderson County, Shelby County, Spencer County, Kentucky. It was in force for 29 min. 2 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 22, 2011, 6:01 PM EDT (22:01 UTC)
Expired: Apr 22, 2011, 6:30 PM EDT
In force: 29 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Anderson County, KY, Shelby County, KY, Spencer County, KY

The radar

The Louisville radar (KLVX), 60 km from the middle of the area, began a volume at 22:03 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 22, 6:02 PM EDT	FUNNEL CLOUD	Waterford, KY
Apr 22, 6:23 PM EDT	HAIL 1	8 S Shelbyville, KY

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 22, 2:31 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.0 hours before the alert went out and 197 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1683 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 452 m²/s²
0-3 km storm-relative helicity: 501 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.

733 
WFUS53 KLMK 222201
TORLMK
KYC005-211-215-222230-
/O.NEW.KLMK.TO.W.0041.110422T2201Z-110422T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
601 PM EDT FRI APR 22 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL ANDERSON COUNTY IN EAST CENTRAL KENTUCKY...
  SOUTHERN SHELBY COUNTY IN NORTH CENTRAL KENTUCKY...
  NORTHERN SPENCER COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL 630 PM EDT...

* AT 558 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR WATERFORD...MOVING EAST AT 40 MPH.

* THIS TORNADIC STORM WILL ALSO IMPACT...
  TAYLORSVILLE...
  RIVALS AND OLIVE BRANCH...
  LITTLE MOUNT...
  SOUTHVILLE AND MOUNT EDEN...
  HARRISONVILLE AND JUNTE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...STRONG
ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON
THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. MOVE INDOORS TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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.

&&

LAT...LON 3801 8499 3801 8547 3809 8548 3811 8545
      3812 8545 3820 8506
TIME...MOT...LOC 2201Z 262DEG 34KT 3807 8539

$$

SCHOETTMER

1 follow-up statement

269 
WWUS53 KLMK 222213
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
613 PM EDT FRI APR 22 2011

KYC005-211-215-222230-
/O.CON.KLMK.TO.W.0041.000000T0000Z-110422T2230Z/
SHELBY KY-SPENCER KY-ANDERSON KY-
613 PM EDT FRI APR 22 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR CENTRAL
ANDERSON...NORTHERN SPENCER AND SOUTHERN SHELBY COUNTIES...

AT 608 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. A FUNNEL CLOUD WAS SPOTTED 
SOUTHEAST OF WATERFORD! THIS TORNADO WAS LOCATED NEAR YODER...MOVING 
EAST AT 35 MPH.

* THE TORNADO WILL ALSO IMPACT...
  LITTLE MOUNT...
  TAYLORSVILLE...
  SOUTHVILLE...
  MOUNT EDEN AND WAYSIDE...
  GEE AND HARRISONVILLE...

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.

&&

LAT...LON 3820 8506 3813 8504 3812 8503 3801 8499
      3802 8542 3812 8540
TIME...MOT...LOC 2212Z 271DEG 31KT 3806 8528

$$

SCHOETTMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 11:59 AM EDT	Special Weather Statement	LMK	Grayson	31 min
Apr 22, 1:20 PM EDT	Special Weather Statement	LMK	Hardin	25 min
Apr 22, 3:28 PM EDT	Special Weather Statement	LMK	Garrard	47 min
Apr 22, 4:07 PM EDT	Severe Thunderstorm Warning	LMK	Meade	23 min
Apr 22, 4:33 PM EDT	Special Weather Statement	LMK	Trimble	42 min
Apr 22, 4:43 PM EDT	Special Weather Statement	LMK	Jefferson, Oldham	47 min
Apr 22, 5:41 PM EDT	Special Weather Statement	LMK	Spencer	34 min
Apr 22, 5:54 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Jefferson, Shelby, Spencer	36 min
Apr 22, 6:04 PM EDT	Areal Flood Advisory	LMK	Bullitt, Jefferson, Shelby, Spencer	93 min
Apr 22, 6:25 PM EDT	Tornado Warning	LMK	Anderson, Franklin, Shelby, Spencer, Woodford	35 min
Apr 22, 6:55 PM EDT	Tornado Warning	LMK	Anderson, Fayette, Jessamine, Woodford	35 min
Apr 22, 7:03 PM EDT	Special Weather Statement	LMK	Shelby	27 min
Apr 22, 7:26 PM EDT	Tornado Warning	LMK	Bourbon, Clark, Fayette	34 min
Apr 22, 7:39 PM EDT	Areal Flood Advisory	LMK	Bourbon, Clark, Fayette, Franklin, Harrison, Scott and 1 more	111 min
Apr 22, 7:55 PM EDT	Tornado Warning	LMK	Clark	22 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.