Alert archive / Indiana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 13, NWS Louisville, KY

February 20, 2014Clark County, Floyd County, Harrison County, Indiana; Jefferson County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Feb 20, 2014, 10:02 PM EST for Clark County, Floyd County, Harrison County, Indiana; Jefferson County, Kentucky. It was in force for 28 min. 1 report 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: Feb 20, 2014, 10:02 PM EST (03:02 UTC)
Expired: Feb 20, 2014, 10:30 PM EST
In force: 28 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Louisville radar (KLVX), 26 km from the middle of the area, began a volume at 03:03 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
Feb 20, 10:20 PM EST	TSTM WND GST 50	Shively, 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
Feb 20, 6:45 PM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.0 hours before the alert went out and 227 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: 1388 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 487 m²/s²
0-3 km storm-relative helicity: 629 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.

783 
WUUS53 KLMK 210302
SVRLMK
INC019-043-061-KYC111-210330-
/O.NEW.KLMK.SV.W.0013.140221T0302Z-140221T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1002 PM EST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL CLARK COUNTY IN SOUTH CENTRAL INDIANA...
  FLOYD COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHERN HARRISON COUNTY IN SOUTH CENTRAL INDIANA...
  WESTERN JEFFERSON COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL 1030 PM EST

* AT 958 PM EST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 8 MILES NORTHEAST OF CORYDON TO BRANDENBURG...AND
  MOVING EAST AT 40 TO 45 MPH.

  HAZARD...60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  LOUISVILLE...NEW ALBANY...PLEASURE RIDGE PARK...SHIVELY...
  JEFFERSONVILLE...VALLEY STATION...NEW MIDDLETOWN...LANESVILLE...
  DOGWOOD...EDWARDSVILLE...LACONIA...FLOYDS KNOBS...SEVEN SPRINGS...
  LOTTICK CORNER...ELIZABETH...BRIDGEPORT...BUENA VISTA...NEW
  BOSTON...HAMBURG AND SUGAR GROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3846 8559 3843 8562 3838 8564 3805 8586
      3800 8594 3801 8597 3799 8604 3805 8627
      3807 8627 3831 8600
TIME...MOT...LOC 0302Z 282DEG 30KT 3829 8597 3803 8619

HAIL...<.75IN
WIND...60MPH

$$

TWF

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 20, 8:32 PM EST	Special Weather Statement	LMK	Dubois	28 min
Feb 20, 8:38 PM EST	Severe Thunderstorm Warning	LMK	Crawford, Perry	32 min
Feb 20, 8:47 PM EST	Severe Thunderstorm Warning	LMK	Perry	28 min
Feb 20, 8:51 PM EST	Special Weather Statement	LMK	Dubois, Orange	44 min
Feb 20, 8:53 PM EST	Tornado Warning	LMK	Crawford, Perry	22 min
Feb 20, 9:17 PM EST	Severe Thunderstorm Warning	LMK	Crawford, Harrison, Washington	28 min
Feb 20, 9:26 PM EST	Special Weather Statement	LMK	Washington	29 min
Feb 20, 9:35 PM EST	Areal Flood Advisory	LMK	Clark, Jefferson, Scott, Washington	3 hr
Feb 20, 9:49 PM EST	Special Weather Statement	LMK	Clark, Floyd, Harrison	31 min
Feb 20, 9:55 PM EST	Severe Thunderstorm Warning	LMK	Clark, Floyd	30 min
Feb 20, 10:05 PM EST	Severe Thunderstorm Warning	LMK	Clark, Jefferson, Scott	30 min
Feb 20, 10:28 PM EST	Severe Thunderstorm Warning	LMK	Clark	32 min
Feb 20, 7:06 PM EST	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Grayson, Hart	24 min
Feb 20, 7:31 PM EST	Special Weather Statement	LMK	Hart	29 min
Feb 20, 8:10 PM EST	Special Weather Statement	LMK	Simpson, Warren	30 min
Feb 20, 8:18 PM EST	Special Weather Statement	LMK	Edmonson, Warren	32 min
Feb 20, 8:23 PM EST	Severe Thunderstorm Warning	LMK	Allen, Simpson, Warren	32 min
Feb 20, 8:28 PM EST	Tornado Warning	LMK	Simpson, Warren	22 min
Feb 20, 8:31 PM EST	Tornado Warning	LMK	Allen, Simpson	29 min
Feb 20, 8:47 PM EST	Special Weather Statement	LMK	Hart	33 min
Feb 20, 8:57 PM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Green, Metcalfe, Monroe	28 min
Feb 20, 9:21 PM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Warren	19 min
Feb 20, 9:25 PM EST	Severe Thunderstorm Warning	LMK	Allen, Barren	30 min
Feb 20, 9:41 PM EST	Severe Thunderstorm Warning	LMK	Allen, Monroe	19 min
Feb 20, 9:56 PM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Butler, Grayson, Hardin, Meade, Ohio	29 min
Feb 20, 10:03 PM EST	Severe Thunderstorm Warning	LMK	Adair, Clinton, Cumberland, Green, Metcalfe, Monroe and 2 more	32 min
Feb 20, 10:27 PM EST	Special Weather Statement	LMK	Edmonson, Grayson, Hardin	28 min
Feb 20, 10:27 PM EST	Severe Thunderstorm Warning	LMK	Adair, Casey, Clinton, Cumberland, Russell	28 min
Feb 20, 10:28 PM EST	Special Weather Statement	LMK	Boyle, Casey, Garrard, Jessamine, Lincoln	32 min
Feb 20, 10:34 PM EST	Tornado Warning	LMK	Adair, Casey, Russell	21 min
Feb 20, 10:40 PM EST	Special Weather Statement	LMK	Henry, Trimble	30 min
Feb 20, 10:47 PM EST	Severe Thunderstorm Warning	LMK	Boyle, Casey, Clark, Fayette, Garrard, Jessamine and 2 more	28 min
Feb 20, 10:53 PM EST	Severe Thunderstorm Warning	LMK	Henry, Trimble	32 min
Feb 20, 10:54 PM EST	Severe Thunderstorm Warning	LMK	Clinton	21 min
Feb 20, 10:58 PM EST	Severe Thunderstorm Warning	LMK	Bullitt, Henry, Jefferson, Oldham, Shelby, Spencer	32 min
Feb 20, 11:02 PM EST	Tornado Warning	LMK	Garrard, Madison	23 min
Feb 20, 11:04 PM EST	Tornado Warning	LMK	Bourbon, Clark, Fayette, Nicholas	26 min
Feb 20, 11:09 PM EST	Special Weather Statement	LMK	Anderson, Green, Hart, Larue, Marion, Nelson and 1 more	31 min
Feb 20, 11:11 PM EST	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Garrard, Madison	24 min
Feb 20, 11:21 PM EST	Severe Thunderstorm Warning	LMK	Franklin, Henry, Scott, Shelby	29 min
Feb 20, 11:26 PM EST	Special Weather Statement	LMK	Anderson, Franklin, Woodford	29 min
Feb 20, 11:42 PM EST	Special Weather Statement	LMK	Adair, Anderson, Boyle, Green, Jessamine, Marion and 3 more	28 min
Feb 20, 11:51 PM EST	Special Weather Statement	LMK	Bourbon, Fayette, Harrison, Nicholas, Scott, Woodford	44 min
Feb 21, 12:11 AM EST	Special Weather Statement	LMK	Adair, Boyle, Casey, Clark, Garrard, Jessamine and 3 more	44 min
Feb 21, 12:56 PM EST	River Flood Warning	LMK	Bourbon	21 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2014 Severe Thunderstorm Warnings in Kentucky, 2014 Every severe thunderstorm warning in 2014

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.