Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 60, NWS Louisville, KY

March 8, 20094 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Mar 8, 2009, 5:36 PM CDT for 4 counties in Kentucky. 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 8, 2009, 5:36 PM CDT (22:36 UTC)
Expired: Mar 8, 2009, 6:00 PM CDT
In force: 24 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Barren County, KY, Edmonson County, KY, Hart County, KY, Warren County, KY

The radar

The Louisville radar (KLVX), 97 km from the middle of the area, began a volume at 22:39 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 8, 1:52 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.6 hours before the alert went out and 118 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: 2 J/kg
Mixed-layer CIN: -113 J/kg
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 258 m²/s²
0-3 km storm-relative helicity: 229 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 Mar 8, 5:24 PM CDT, 12 minutes earlier.

Area forecast discussion, Mar 8, 5:24 PM CDT, 12 minutes before

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Hazardous weather outlook, Mar 8, 2:35 PM CDT, 3 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
335 PM EDT SUN MAR 8 2009

INZ076>079-083-084-089>092-KYZ023>034-038-045-053-061>063-070>074-
091945-
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-SPENCER KY-
NELSON KY-LARUE KY-BUTLER KY-EDMONSON KY-HART KY-LOGAN KY-
WARREN KY-SIMPSON KY-ALLEN KY-BARREN KY-
335 PM EDT SUN MAR 8 2009 /235 PM CDT SUN MAR 8 2009/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A TORNADO WATCH IS IN EFFECT UNTIL 800 PM EDT TONIGHT. A COLD
FRONT WILL MOVE THROUGH THE REGION LATE THIS AFTERNOON AND
EVENING. STRONG TO SEVERE THUNDERSTORMS WILL ACCOMPANY THE FRONT
AS IT MOVES THROUGH THE AREA. DAMAGING WINDS...LARGE HAIL AND
ISOLATED TORNADOES WILL BE POSSIBLE WITH THIS ACTIVITY. IN
ADDITION...WINDS ARE EXPECTED TO BE QUITE GUSTY AFTER THE
THUNDERSTORMS MOVE THROUGH. SUSTAINED WINDS OF 15 TO 20 MPH WITH
GUSTS TO 35 MPH WILL BE POSSIBLE THIS EVENING BEFORE SUBSIDING OVERNIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TUESDAY AND
TUESDAY NIGHT IN ADVANCE OF A COLD FRONT EXPECTED TO MOVE THROUGH
OUR REGION. AT THIS TIME...STRONG STORMS MAY BE POSSIBLE TUESDAY
EVENING...WITH THE MAIN HAZARD BEING DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED FOR THIS AFTERNOON AND EVENING.
SPOTTERS AND EMERGENCY MANAGERS ARE REQUESTED TO REPORT SEVERE
WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN LOUISVILLE AS
SOON AS POSSIBLE. SPOTTER ACTIVATION MAY BE REQUESTED AGAIN
TUESDAY AND TUESDAY NIGHT.

KYZ035>037-039>043-046>049-054>057-064>067-075>078-081-082-091945-
FRANKLIN KY-SCOTT KY-HARRISON KY-ANDERSON KY-WOODFORD KY-
FAYETTE KY-BOURBON KY-NICHOLAS KY-WASHINGTON KY-MERCER KY-
JESSAMINE KY-CLARK KY-MARION KY-BOYLE KY-GARRARD KY-MADISON KY-
GREEN KY-TAYLOR KY-CASEY KY-LINCOLN KY-MONROE KY-METCALFE KY-
ADAIR KY-RUSSELL KY-CUMBERLAND KY-CLINTON KY-
335 PM EDT SUN MAR 8 2009 /235 PM CDT SUN MAR 8 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
AND THE BLUEGRASS REGION OF CENTRAL KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO MOVE INTO PORTIONS OF
SOUTH CENTRAL AND THE BLUEGRASS REGION OF CENTRAL KENTUCKY LATER
THIS AFTERNOON AND THIS EVENING. THESE STORMS WILL ACCOMPANY A
COLD FRONT THAT WILL BE PASSING THROUGH THE REGION. DAMAGING
WINDS...LARGE HAIL AND ISOLATED TORNADOES WILL BE POSSIBLE WITH
THIS ACTIVITY. IN ADDITION...WINDS ARE EXPECTED TO BE QUITE GUSTY
AFTER THE THUNDERSTORMS MOVE THROUGH THIS EVENING. SUSTAINED WINDS
OF 15 TO 20 MPH WITH GUSTS TO 35 MPH WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TUESDAY AND
TUESDAY NIGHT IN ADVANCE OF A COLD FRONT EXPECTED TO MOVE THROUGH
OUR REGION. AT THIS TIME...STRONG STORMS MAY BE POSSIBLE TUESDAY
EVENING...WITH THE MAIN HAZARD BEING DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE REQUIRED LATE THIS AFTERNOON
AND EVENING. SPOTTERS AND EMERGENCY MANAGERS ARE REQUESTED TO
REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
LOUISVILLE AS SOON AS POSSIBLE. SPOTTER ACTIVATION MAY BE
REQUESTED AGAIN TUESDAY AND TUESDAY NIGHT.

MJ

In the hours before

Local storm report, Mar 8, 4:39 PM CDT, 57 minutes before

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Local storm report, Mar 8, 4:40 PM CDT, 56 minutes before

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Local storm report, Mar 8, 4:42 PM CDT, 54 minutes before

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Special weather statement, Mar 8, 4:49 PM CDT, 47 minutes before

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Local storm report, Mar 8, 4:56 PM CDT, 40 minutes before

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Special weather statement, Mar 8, 5:03 PM CDT, 33 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 8, 3:49 PM CDT	Tornado Warning	LMK	Breckinridge, Grayson, Ohio	41 min
Mar 8, 4:04 PM CDT	Tornado Warning	LMK	Grayson	26 min
Mar 8, 4:06 PM CDT	Severe Thunderstorm Warning	LMK	Meade	24 min
Mar 8, 4:31 PM CDT	Tornado Warning	LMK	Grayson, Hardin, Hart, Larue	44 min
Mar 8, 4:34 PM CDT	Severe Thunderstorm Warning	LMK	Butler	26 min
Mar 8, 5:09 PM CDT	Severe Thunderstorm Warning	LMK	Green, Larue, Marion, Taylor	36 min
Mar 8, 5:37 PM CDT	Severe Thunderstorm Warning	LMK	Logan	23 min
Mar 8, 6:03 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Barren, Green, Metcalfe, Taylor	27 min
Mar 8, 3:17 PM CDT	Severe Thunderstorm Warning	LMK	Dubois	28 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.