Alert archive / Kentucky / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 247, NWS Louisville, KY

May 18, 2006Adair County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 18, 2006, 4:56 PM CDT for Adair County, Kentucky. It was in force for 34 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: May 18, 2006, 4:56 PM CDT (21:56 UTC)
Expired: May 18, 2006, 5:30 PM CDT
In force: 34 min
Issued by: NWS Louisville, KY
Area: Counties, with a storm outline in the text

County Adair County, KY

The radar

The Louisville radar (KLVX), 113 km from the middle of the area, began a volume at 21:57 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.9 hours before the alert went out and 289 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: 760 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -49 m²/s²
0-3 km storm-relative helicity: 3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 18, 3:39 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, May 18, 3:39 PM CDT, 1 hour 17 minutes before

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Hazardous weather outlook, May 18, 2:30 PM CDT, 2 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
330 PM EDT THU MAY 18 2006

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-190830-
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-
230 PM CDT THU MAY 18 2006 /330 PM EDT THU MAY 18 2006/

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

.DAY ONE...THIS EVENING AND TONIGHT.

SCATTERED THUNDERSTORMS WILL BE ONGOING THROUGH THE LATE AFTERNOON
AND EVENING HOURS FOR MAINLY SOUTH CENTRAL INDIANA AND NORTH
CENTRAL KENTUCKY...INCLUDING THE BLUEGRASS REGION OF KENTUCKY. THE
STRONGEST STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL AND
ISOLATED DAMAGING WINDS. FREQUENT LIGHTNING AND BRIEF HEAVY
RAINFALL WILL ALSO BE POSSIBLE WITH ANY THUNDERSTORM THAT OCCURS.
MOST ACTIVITY WILL DIMINISH AFTER MIDNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS SOUTH CENTRAL KENTUCKY
FRIDAY AFTERNOON AND EVENING...AND EARLY SUNDAY MORNING ACROSS
SOUTHERN INDIANA AND NORTH CENTRAL KENTUCKY. SOME OF THESE STORMS
COULD BE SEVERE WITH LARGE HAIL AND ISOLATED DAMAGING WINDS BEING
THE BIGGEST THREATS.

MORE THUNDERSTORM CHANCES WILL OCCUR AT TIMES FROM MONDAY NIGHT
THROUGH THURSDAY AS A SURFACE BOUNDARY STAYS NEARLY STATIONARY
ACROSS THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO RELAY WIND AND HAIL REPORTS THIS EVENING
TO THE NATIONAL WEATHER SERVICE.

AL

In the hours before

Local storm report, May 18, 3:43 PM CDT, 1 hour 13 minutes before

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Special weather statement, May 18, 3:44 PM CDT, 1 hour 12 minutes before

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Local storm report, May 18, 3:45 PM CDT, 1 hour 11 minutes before

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Special weather statement, May 18, 4:10 PM CDT, 46 minutes before

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Local storm report, May 18, 4:18 PM CDT, 38 minutes before

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Special weather statement, May 18, 4:34 PM CDT, 22 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
May 18, 12:52 AM CDT	Severe Thunderstorm Warning	LMK	Mercer	23 min
May 18, 2:20 PM CDT	Severe Thunderstorm Warning	LMK	Harrison	25 min
May 18, 2:39 PM CDT	Severe Thunderstorm Warning	LMK	Nicholas	36 min
May 18, 2:40 PM CDT	Severe Thunderstorm Warning	LMK	Bullitt, Hardin	35 min
May 18, 2:43 PM CDT	Severe Thunderstorm Warning	LMK	Henry	28 min
May 18, 5:13 PM CDT	Severe Thunderstorm Warning	LMK	Russell	32 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 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.