Alert archive / Indiana / Special Weather Statements in 2017

Special Weather Statement, NWS Louisville, KY

July 23, 2017Hancock County, Kentucky; Crawford County, Orange County, Perry County, Indiana

NWS Louisville, KY issued this special weather statement at Jul 23, 2017, 3:56 AM CDT for Hancock County, Kentucky; Crawford County, Orange County, Perry County, Indiana. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 23, 2017, 3:56 AM CDT (08:56 UTC)
Expired
Jul 23, 2017, 4:45 AM CDT
In force
49 min
Issued by
NWS Louisville, KY

Counties Crawford County, IN, Orange County, IN, Perry County, IN, Hancock County, KY

The radar

The Louisville radar (KLVX), 75 km from the middle of the area, began a volume at 08:56 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, 8.9 hours before the alert went out and 219 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2017-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1458 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2017-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1458 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1793 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 23, 2:25 AM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Jul 23, 2:25 AM CDT, 1 hour 31 minutes before
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Hazardous weather outlook, Jul 23, 3:02 AM CDT, 54 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
402 AM EDT Sun Jul 23 2017

INZ083-084-089>091-KYZ023>030-038-045-053-061>063-070>074-230915-
Dubois-Crawford-Perry-Harrison-Floyd-Hancock-Breckinridge-Meade-Ohio-
Grayson-Hardin-Bullitt-Jefferson-Spencer-Nelson-Larue-Butler-
Edmonson-Hart-Logan-Warren-Simpson-Allen-Barren-
Including the cities of Jasper, English, Tell City, Corydon,
New Albany, Lewisport, Hawesville, Hardinsburg, Brandenburg,
Hartford, Leitchfield, Elizabethtown, Shepherdsville, Louisville,
Taylorsville, Bardstown, Hodgenville, Morgantown, Brownsville,
Horse Cave, Russellville, Bowling Green, Franklin, Providence,
Scottsville, and Glasgow
402 AM EDT Sun Jul 23 2017 /302 AM CDT Sun Jul 23 2017/

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING...

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Today and Tonight.

Heat index values are expected to rise into the 100 to 106 range
today, generally along and west of I-65, due to a combination of hot
temperatures and high humidity. Scattered to numerous thunderstorms
are expected at times today as a surface boundary moves south through
the region. Strong storms are a possibility, with damaging winds as
the main threat.

Locally heavy rainfall due to strong storms moving repeatedly over
the same areas may result in flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Thunderstorms will be possible Thursday into Thursday night as a cold
front moves through.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

&&

More information, along with other weather, hydrological and
climate information can be found, at weather.gov/louisville.

INZ076>079-092-KYZ031>037-039>043-046>049-054>057-064>067-075>078-
081-082-230915-
Orange-Washington-Scott-Jefferson-Clark-Oldham-Trimble-Henry-Shelby-
Franklin-Harrison-Anderson-Woodford-Fayette-Bourbon-Nicholas-Mercer-
Jessamine-Marion-Boyle-Garrard-Madison-Green-Taylor-Casey-Lincoln-
Monroe-Metcalfe-Adair-Russell-Cumberland-Clinton-
Including the cities of Paoli, Salem, Scottsburg, Madison,
Jeffersonville, La Grange, Bedford, Milton, New Castle, Shelbyville,
Frankfort, Georgetown, Cynthiana, Lawrenceburg, Versailles,
Lexington, Paris, Carlisle, Springfield, Harrodsburg, Nicholasville,
Winchester, Lebanon, Danville, Lancaster, Richmond, Greensburg,
Campbellsville, Liberty, Stanford, Tompkinsville, Edmonton,
Columbia, Jamestown, Burkesville, and Albany
402 AM EDT Sun Jul 23 2017 /302 AM CDT Sun Jul 23 2017/

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Today and Tonight.

Scattered to numerous thunderstorms are expected at times today as a
surface boundary moves south through the region. Some strong storms
will be possible, with damaging winds as the main threat.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Thunderstorms will be possible Thursday into Thursday night as a cold
front moves through.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

&&

More information, along with other weather, hydrological and
climate information can be found, at weather.gov/louisville.

EBW

In the hours before

Special weather statement, Jul 23, 2:39 AM CDT, 1 hour 17 minutes before
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Special weather statement, Jul 23, 2:46 AM CDT, 1 hour 10 minutes before
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Special weather statement, Jul 23, 2:51 AM CDT, 1 hour 5 minutes before
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Special weather statement, Jul 23, 3:23 AM CDT, 33 minutes before
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Special weather statement, Jul 23, 3:33 AM CDT, 23 minutes before
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Special weather statement, Jul 23, 3:56 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:08 PM CDTSpecial Weather StatementLMKHarrison37 min
Jul 22, 8:20 PM CDTSevere Thunderstorm WarningLMKHarrison, Nicholas40 min
Jul 22, 8:58 PM CDTSpecial Weather StatementLMKNicholas47 min
Jul 23, 12:16 AM CDTSpecial Weather StatementLMKNicholas14 min
Jul 23, 1:16 AM CDTSpecial Weather StatementLMKBullitt, Jefferson, Meade29 min
Jul 23, 1:46 AM CDTSpecial Weather StatementLMKBullitt, Meade, Nelson, Shelby, Spencer29 min
Jul 23, 2:12 AM CDTSevere Thunderstorm WarningLMKMeade33 min
Jul 23, 2:17 AM CDTSevere Thunderstorm WarningLMKAnderson, Franklin, Henry, Shelby, Spencer, Woodford43 min
Jul 23, 2:39 AM CDTSpecial Weather StatementLMKMeade36 min
Jul 23, 2:51 AM CDTSpecial Weather StatementLMKAnderson, Franklin, Jessamine, Scott, Woodford39 min
Jul 23, 3:33 AM CDTSpecial Weather StatementLMKJessamine27 min
Jul 23, 3:47 AM CDTAreal Flood AdvisoryLMKBreckinridge, Meade3 hr
Jul 23, 4:23 AM CDTFlash Flood WarningLMKBreckinridge, Hancock, Meade3 hr
Jul 23, 6:44 AM CDTSevere Thunderstorm WarningLMKMeade31 min
Jul 23, 6:29 PM CDTSpecial Weather StatementLMKClinton31 min
Jul 23, 6:31 PM CDTSpecial Weather StatementLMKMonroe44 min
Jul 23, 6:38 PM CDTSpecial Weather StatementLMKCumberland37 min
Jul 22, 7:24 PM CDTSpecial Weather StatementLMKJefferson36 min
Jul 23, 12:14 AM CDTSpecial Weather StatementLMKOrange, Washington46 min
Jul 23, 12:44 AM CDTSevere Thunderstorm WarningLMKClark, Crawford, Floyd, Harrison, Orange, Scott and 1 more31 min
Jul 23, 1:24 AM CDTAreal Flood AdvisoryLMKOrange3 hr
Jul 23, 2:41 AM CDTAreal Flood AdvisoryLMKCrawford, Dubois, Harrison, Orange, Perry, Washington3 hr
Jul 23, 2:46 AM CDTSpecial Weather StatementLMKDubois29 min
Jul 23, 3:23 AM CDTSpecial Weather StatementLMKCrawford, Dubois37 min
Jul 23, 6:20 AM CDTSevere Thunderstorm WarningLMKDubois25 min
Jul 23, 6:55 AM CDTSpecial Weather StatementLMKOrange35 min
Jul 23, 7:16 AM CDTSpecial Weather StatementLMKFloyd, Harrison29 min
Jul 23, 5:00 PM CDTSpecial Weather StatementLMKJefferson30 min

Nearby

Special Weather Statements in Indiana, 2017Special Weather Statements in Kentucky, 2017Every special weather statement in 2017

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.