Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 48, NWS Louisville, KY

February 18, 2009Madison County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Feb 18, 2009, 2:53 PM EST for Madison County, Kentucky. It was in force for 7 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: Feb 18, 2009, 2:53 PM EST (19:53 UTC)
Expired: Feb 18, 2009, 3:00 PM EST
In force: 7 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

County Madison County, KY

The radar

The Jackson,KY radar (KJKL), 86 km from the middle of the area, began a volume at 19:54 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 18, 12:09 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.9 hours before the alert went out and 195 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 486 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 582 m²/s²
0-3 km storm-relative helicity: 490 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 Feb 18, 2:50 PM EST, 3 minutes earlier.

Area forecast discussion, Feb 18, 2:50 PM EST, 3 minutes before

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Hazardous weather outlook, Feb 18, 11:30 AM EST, 3 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
1130 AM EST WED FEB 18 2009

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-190930-
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-
1130 AM EST (1030 AM CST) WED FEB 18 2009

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EVENING
AS A COLD FRONT PASSES THROUGH THE REGION. LIGHTNING...HEAVY
RAIN...HAIL...AND GUSTY WINDS WILL BE POSSIBLE WITH ANY
THUNDERSTORM. THE BEST CHANCE FOR SIGNIFICANT WINDS AND HAIL WILL BE
OVER SOUTHERN KENTUCKY.

OUTSIDE OF ANY THUNDERSTORMS TODAY AND TONIGHT...SOUTHERLY SURFACE
WINDS WILL BE SUSTAINED AT 15 TO 25 MPH...WITH GUSTS OF UP TO 35 MPH
AT TIMES. THIS WILL CAUSE DIFFICULTY FOR DRIVERS OF HIGH-PROFILE
VEHICLES ON EAST TO WEST ROADWAYS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

A CLIPPER SYSTEM WILL MOVE NEAR THE AREA FRIDAY NIGHT INTO SATURDAY
MORNING. LIGHT ACCUMULATING SNOW IS POSSIBLE WITH THIS
SYSTEM...ESPECIALLY ACROSS SOUTHERN INDIANA AND NORTH CENTRAL
KENTUCKY. AT THIS TIME ACCUMULATIONS OF AROUND AN INCH ARE EXPECTED.
ANY CHANGE IN FORECAST TRACK COULD CHANGE THESE AMOUNTS SLIGHTLY.
STAY TUNED TO FUTURE FORECASTS FOR ANY UPDATES.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT INSTANCES OF GUSTY WINDS TO THE
NATIONAL WEATHER SERVICE IN LOUISVILLE TODAY.

AL/LMS/13

In the hours before

Special weather statement, Feb 18, 1:49 PM EST, 1 hour 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
149 PM EST WED FEB 18 2009

INZ090-KYZ024>034-038-181945-
BRECKINRIDGE-BULLITT-GRAYSON-HARDIN-HARRISON-HENRY-JEFFERSON-MEADE-
OHIO-OLDHAM-SHELBY-SPENCER-TRIMBLE-
149 PM EST WED FEB 18 2009

...SCATTERED THUNDERSTORMS MOVING INTO NORTH CENTRAL KENTUCKY...

AT 144 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED
SCATTERED THUNDERSTORMS ALONG A LINE FROM JEFFERSONVILLE INDIANA TO
BUFORD IN OHIO COUNTY KENTUCKY...AND MOVING EAST AT 45 MPH.

BRIEF HEAVY RAIN...PEA OR MARBLE SIZE HAIL...AND LIGHTNING CAN BE
EXPECTED WITH THE STRONGER STORMS.

THESE STORMS WILL BE NEAR...
  LOUISVILLE BY 200 PM EST.
  LA GRANGE BY 210 PM EST.
  HARDINSBURG BY 200 PM EST.
  SHEPHERDSVILLE BY 230 PM EST.

TWF

Local storm report, Feb 18, 1:50 PM EST, 1 hour 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
150 PM EST WED FEB 18 2009

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0142 PM     HAIL             1 E CUMBERLAND CITY     36.80N  85.05W
02/18/2009  E1.75 INCH       CLINTON            KY   EMERGENCY MNGR

            COVERING THE GROUND 2 INCHES DEEP

&&

EVENT NUMBER 00319

FOSTER

Local storm report, Feb 18, 1:53 PM EST, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
153 PM EST WED FEB 18 2009

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0141 PM     HAIL             4 NW ALBANY             36.73N  85.19W
02/18/2009  E1.75 INCH       CLINTON            KY   BROADCAST MEDIA

            GOLF BALL HAIL COVERING GROUND

&&

EVENT NUMBER 00320

FOSTER

Local storm report, Feb 18, 2:11 PM EST, 42 minutes before

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Local storm report, Feb 18, 2:12 PM EST, 41 minutes before

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Local storm report, Feb 18, 2:47 PM EST, 6 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
Feb 18, 1:56 AM EST	Severe Thunderstorm Warning	LMK	Logan, Simpson	34 min
Feb 18, 11:10 AM EST	Severe Thunderstorm Warning	LMK	Allen, Logan, Simpson, Warren	35 min
Feb 18, 11:48 AM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Warren	42 min
Feb 18, 12:20 PM EST	Severe Thunderstorm Warning	LMK	Allen, Simpson	25 min
Feb 18, 12:26 PM EST	Severe Thunderstorm Warning	LMK	Adair, Barren, Cumberland, Metcalfe	49 min
Feb 18, 12:39 PM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Cumberland, Monroe	51 min
Feb 18, 12:50 PM EST	Severe Thunderstorm Warning	LMK	Marion, Nelson, Washington	25 min
Feb 18, 12:53 PM EST	Tornado Warning	LMK	Clinton, Cumberland, Russell	26 min
Feb 18, 1:14 PM EST	Severe Thunderstorm Warning	LMK	Allen, Clinton, Cumberland, Monroe	46 min
Feb 18, 1:15 PM EST	Severe Thunderstorm Warning	LMK	Mercer, Washington	30 min
Feb 18, 1:33 PM EST	Tornado Warning	LMK	Clinton, Cumberland	27 min
Feb 18, 1:39 PM EST	Severe Thunderstorm Warning	LMK	Garrard, Jessamine, Madison	21 min
Feb 18, 1:57 PM EST	Tornado Warning	LMK	Clinton	33 min
Feb 18, 2:04 PM EST	Severe Thunderstorm Warning	LMK	Clark, Madison	26 min
Feb 18, 1:10 PM EST	Severe Thunderstorm Warning	LMK	Crawford, Floyd, Harrison	35 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2009 Every severe thunderstorm warning in 2009

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.