Alert archive / Indiana / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 131, NWS Louisville, KY

May 27, 2015Jefferson County, Kentucky; Clark County, Floyd County, Harrison County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at May 27, 2015, 1:54 PM EDT for Jefferson County, Kentucky; Clark County, Floyd County, Harrison County, Indiana. It was in force for 31 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 27, 2015, 1:54 PM EDT (17:54 UTC)
Expired: May 27, 2015, 2:25 PM EDT
In force: 31 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), 37 km from the middle of the area, began a volume at 17:55 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, 5.9 hours before the alert went out and 218 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: 3 J/kg
Mixed-layer CIN: -144 J/kg
Mixed-layer LCL: 682 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 27, 1:32 PM EDT, 22 minutes earlier.

Area forecast discussion, May 27, 1:32 PM EDT, 22 minutes before

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Hazardous weather outlook, May 27, 4:05 AM EDT, 9 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED TYPO
NATIONAL WEATHER SERVICE LOUISVILLE KY
405 AM EDT WED MAY 27 2015

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-280745-
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-
INCLUDING THE CITIES OF...PAOLI...SALEM...SCOTTSBURG...MADISON...
JASPER...MARENGO...TELL CITY...CORYDON...NEW ALBANY...
JEFFERSONVILLE...HAWESVILLE...HARDINSBURG...BRANDENBURG...
BEAVER DAM...LEITCHFIELD...ELIZABETHTOWN...FORT KNOX...
MOUNT WASHINGTON...SHEPHERDSVILLE...LOUISVILLE...LA GRANGE...
BEDFORD...NEW CASTLE...SHELBYVILLE...FRANKFORT...GEORGETOWN...
CYNTHIANA...TAYLORSVILLE...LAWRENCEBURG...VERSAILLES...LEXINGTON...
PARIS...CARLISLE...BARDSTOWN...SPRINGFIELD...HARRODSBURG...
NICHOLASVILLE...WINCHESTER...HODGENVILLE...LEBANON...DANVILLE...
LANCASTER...RICHMOND...MORGANTOWN...BROWNSVILLE...MUNFORDVILLE...
GREENSBURG...CAMPBELLSVILLE...LIBERTY...STANFORD...RUSSELLVILLE...
BOWLING GREEN...FRANKLIN...SCOTTSVILLE...GLASGOW...TOMPKINSVILLE...
EDMONTON...COLUMBIA...JAMESTOWN...BURKESVILLE...ALBANY
405 AM EDT WED MAY 27 2015 /305 AM CDT WED MAY 27 2015/

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED AGAIN THIS AFTERNOON AND
EVENING AS WE REMAIN IN AN UNSTABLE AIRMASS WITH AN UPPER LEVEL
DISTURBANCE PASSING JUST TO OUR NORTH. SOME OF THE STORMS MAY
BECOME STRONG TO SEVERE WITH POTENTIALLY DAMAGING WINDS AND HAIL
UP TO 1 INCH IN DIAMETER. ANY STORM THAT DEVELOPS MAY ALSO CONTAIN
HEAVY RAINFALL AND CLOUD TO GROUND LIGHTNING.

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

SCATTERED STORMS ARE EXPECTED TO CONTINUE OFF AND ON THURSDAY
THROUGH TUESDAY AS AN UNSETTLED WEATHER PATTERN CONTINUES. ANY
STORM WILL BE CAPABLE OF FREQUENT LIGHTNING...HEAVY RAINFALL...AND
GUSTY WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO REPORT ANY HAIL OR STRONG WINDS THIS
AFTERNOON AND EVENING.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT WEATHER.GOV/LOUISVILLE.

AMS/ZBT

In the hours before

Special weather statement, May 27, 12:59 PM EDT, 55 minutes before

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Special weather statement, May 27, 1:12 PM EDT, 42 minutes before

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Local storm report, May 27, 1:28 PM EDT, 26 minutes before

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Special weather statement, May 27, 1:29 PM EDT, 25 minutes before

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Local storm report, May 27, 1:31 PM EDT, 23 minutes before

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Special weather statement, May 27, 1:52 PM EDT, 2 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 27, 12:10 PM EDT	Special Weather Statement	LMK	Hancock	30 min
May 27, 12:26 PM EDT	Severe Thunderstorm Warning	LMK	Hancock	29 min
May 27, 12:59 PM EDT	Special Weather Statement	LMK	Breckinridge, Meade	31 min
May 27, 1:12 PM EDT	Special Weather Statement	LMK	Ohio	28 min
May 27, 1:52 PM EDT	Special Weather Statement	LMK	Jefferson	28 min
May 27, 2:21 PM EDT	Special Weather Statement	LMK	Bullitt, Spencer	29 min
May 27, 2:23 PM EDT	Special Weather Statement	LMK	Jefferson	32 min
May 27, 2:34 PM EDT	Special Weather Statement	LMK	Edmonson	31 min
May 27, 2:43 PM EDT	Special Weather Statement	LMK	Logan	32 min
May 27, 2:49 PM EDT	Special Weather Statement	LMK	Shelby, Spencer	31 min
May 27, 3:02 PM EDT	Special Weather Statement	LMK	Grayson	28 min
May 27, 3:18 PM EDT	Special Weather Statement	LMK	Franklin	32 min
May 27, 3:20 PM EDT	Special Weather Statement	LMK	Anderson, Woodford	30 min
May 27, 3:28 PM EDT	Special Weather Statement	LMK	Allen	32 min
May 27, 3:42 PM EDT	Special Weather Statement	LMK	Boyle, Mercer, Washington	28 min
May 27, 3:53 PM EDT	Special Weather Statement	LMK	Anderson, Woodford	32 min
May 27, 4:20 PM EDT	Special Weather Statement	LMK	Bourbon	30 min
May 27, 4:32 PM EDT	Special Weather Statement	LMK	Taylor	28 min
May 27, 4:56 PM EDT	Special Weather Statement	LMK	Boyle, Taylor	29 min
May 27, 5:01 PM EDT	Special Weather Statement	LMK	Bourbon, Clark, Nicholas	29 min
May 27, 5:20 PM EDT	Special Weather Statement	LMK	Lincoln	30 min
May 27, 1:29 PM EDT	Special Weather Statement	LMK	Floyd, Harrison	31 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2015 Severe Thunderstorm Warnings in Kentucky, 2015 Every severe thunderstorm warning in 2015

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.