Alert archive / Indiana / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 97, NWS Louisville, KY

March 31, 2006Harrison County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Mar 31, 2006, 10:36 PM EST for Harrison County, Indiana. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 31, 2006, 10:36 PM EST (03:36 UTC)
Expired: Mar 31, 2006, 11:00 PM EST
In force: 24 min
Issued by: NWS Louisville, KY
Area: Counties, with a storm outline in the text

County Harrison County, IN

The radar

The Louisville radar (KLVX), 28 km from the middle of the area, began a volume at 03:39 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 3.6 hours before the alert went out and 234 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: 419 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 31, 10:30 PM EST, 6 minutes earlier.

Area forecast discussion, Mar 31, 10:30 PM EST, 6 minutes before

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Hazardous weather outlook, Mar 31, 3:45 PM EST, 6 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
345 PM EST FRI MAR 31 2006

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-010945-
ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN-
CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY-
BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY-
JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY-
SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY-
FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY-
MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY-
GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY-
TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY-
ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY-
CUMBERLAND KY-CLINTON KY-
245 PM CST FRI MAR 31 2006 /345 PM EST FRI MAR 31 2006/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
INDIANA AND CENTRAL KENTUCKY.

.DAY ONE...THIS TONIGHT.

THE POTENTIAL EXIST FOR SEVERE THUNDERSTORMS TO DEVELOP MAINLY
ACROSS SOUTH CENTRAL INDIANA LATE THIS AFTERNOON AND EVENING. IF
THESE STORMS DO OCCUR STRONG GUSTY WINDS... HAIL... AND AN ISOLATED
TORNADO WILL BE POSSIBLE.

THUNDERSTORMS WILL BE POSSIBLE ACROSS CENTRAL KENTUCKY AFTER 8 PM
EST WITH THE MAIN THREAT GUSTY WINDS AND HAIL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THE STORM PREDICTION CENTER HAS DECLARED A SLIGHT RISK OF SEVERE
STORMS SUNDAY EVENING ALONG AND WEST OF A LINE FROM NEW CASTLE...TO
HODGENVILLE...TO FRANKLIN. STRONG GUSTY WINDS WILL BE THE PRIMARY
THREAT...WITH LARGE HAIL A SECONDARY THREAT...AND AN ISOLATED
TORNADO OR TWO IS POSSIBLE.

ADDITIONAL STRONG TO SEVERE STORMS WILL BE POSSIBLE MONDAY AS A
COLD FRONT CROSSES THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED THIS EVENING... SUNDAY...AND
MONDAY.

FOR THE LATEST INFORMATION ON THESE DEVELOPING STORMS LISTEN TO NOAA
WEATHER RADIO...CHECK THE WEB AT WEATHER.GOV/LOUISVILLE...OR LISTEN
TO BROADCAST MEDIA.

JA

In the hours before

Special weather statement, Mar 31, 8:29 PM EST, 2 hours 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
829 PM EST FRI MAR 31 2006

INZ077>079-092-KYZ032-010300-
WASHINGTON IN-SCOTT IN-JEFFERSON IN-CLARK IN-TRIMBLE KY-
INCLUDING THE CITIES OF...SALEM...SCOTTSBURG...MADISON...
JEFFERSONVILLE...BEDFORD
729 PM CST FRI MAR 31 2006 /829 PM EST FRI MAR 31 2006/

...STRONG TO SEVERE THUNDERSTORMS ENTERING SOUTHERN INDIANA...

A LINE OF STRONG TO SEVERE THUNDERSTORMS IS DROPPING INTO SOUTHERN
INDIANA...MOVING AT 35 MPH TO THE EAST SOUTHEAST. THESE STORMS HAVE A
HISTORY OF PRODUCING LARGE HAIL UP TO AN INCH IN SIZE AND DAMAGING
WINDS OF 60 MPH OR GREATER. ALSO...HEAVY RAINFALL WITH RAINFALL
AMOUNTS OF UP TO 1.5 INCHES WILL BE POSSIBLE ACROSS SOUTH CENTRAL
INDIANA AND A SMALL PORTION OF EXTREME NORTH CENTRAL KENTUCKY. THE
LINE OF STORMS SHOULD ENTER WASHINGTON...SCOTT AND JEFFERSON COUNTIES
IN INDIANA BY 915 TO 930 PM EST.

SCHOTT

Local storm report, Mar 31, 10:08 PM EST, 28 minutes before

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Special weather statement, Mar 31, 10:23 PM EST, 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 10:02 PM EST	Severe Thunderstorm Warning	LMK	Trimble	43 min
Apr 1, 12:37 AM EST	Severe Thunderstorm Warning	LMK	Bourbon, Nicholas	38 min
Mar 31, 9:25 PM EST	Severe Thunderstorm Warning	LMK	Jefferson, Orange, Scott, Washington	50 min
Mar 31, 9:36 PM EST	Tornado Warning	LMK	Jefferson	24 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2006 Every severe thunderstorm warning in 2006

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; radar from the NEXRAD Level II archive.