Alert archive / Indiana / Flash Flood Watches in 2018

Flash Flood Watch 4, NWS Louisville, KY

June 12, 20185 counties in Indiana

NWS Louisville, KY issued this flash flood watch at Jun 12, 2018, 3:41 AM EDT for 5 counties in Indiana. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jun 12, 2018, 3:41 AM EDT (07:41 UTC)
Expired
Jun 12, 2018, 2:00 PM EDT
In force
10 hr
Issued by
NWS Louisville, KY
Flood severity
None

Counties Clark County, IN, Dubois County, IN, Orange County, IN, Scott County, IN, Washington County, IN

The radar

The Louisville radar (KLVX), 66 km from the middle of the area, began a volume at 07:41 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, 7.7 hours before the alert went out and 270 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 2018-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1896 joules per kilogram.LCLEL10008507005003002001001 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 2018-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
1896 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1543 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-20 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 flash flood watch 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 flash flood watch went out at Jun 12, 3:29 AM EDT, 12 minutes earlier.

Area forecast discussion, Jun 12, 3:29 AM EDT, 12 minutes before
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Hazardous weather outlook, Jun 11, 3:52 PM EDT, 11 hours 49 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
352 PM EDT Mon Jun 11 2018

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-122000-
Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison-
Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-
Oldham-Trimble-Henry-Shelby-Franklin-Spencer-Anderson-Woodford-
Fayette-Bourbon-Nicholas-Nelson-Mercer-Jessamine-Larue-Marion-Boyle-
Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey-Lincoln-
Logan-Warren-Simpson-Allen-Barren-Monroe-Metcalfe-Adair-Russell-
Cumberland-Clinton-
Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper,
English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport,
Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield,
Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford,
Milton, New Castle, Shelbyville, Frankfort, Georgetown, Cynthiana,
Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle,
Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester,
Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown,
Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty,
Stanford, Russellville, Bowling Green, Franklin, Providence,
Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown,
Burkesville, and Albany
352 PM EDT Mon Jun 11 2018 /252 PM CDT Mon Jun 11 2018/

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

.DAY ONE...Tonight.

Thunderstorms capable of locally heavy rain, gusty winds, and
lightning are possible. The heaviest rain should fall across
southern Indiana and north central Kentucky where localized minor
flooding issues could arise.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Thunderstorms are expected each day trough early Wednesday.
Lightning, locally heavy rain, and gusty winds will be the main
threats. An enhanced potential for flooding will continue into early
Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report any heavy rainfall amounts OR
flooding to the National Weather Service in Louisville.

KDW

In the hours before

Special weather statement, Jun 11, 10:02 PM EDT, 5 hours 39 minutes before
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Local storm report, Jun 11, 10:26 PM EDT, 5 hours 15 minutes before
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Special weather statement, Jun 11, 11:20 PM EDT, 4 hours 21 minutes before
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Special weather statement, Jun 12, 12:18 AM EDT, 3 hours 23 minutes before
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Special weather statement, Jun 12, 12:20 AM EDT, 3 hours 21 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 9:08 PM EDTSpecial Weather StatementLMKBarren37 min
Jun 11, 10:02 PM EDTSpecial Weather StatementLMKHart28 min
Jun 11, 10:59 PM EDTAreal Flood AdvisoryLMKGreen2 hr
Jun 12, 12:18 AM EDTSpecial Weather StatementLMKJefferson27 min
Jun 12, 12:20 AM EDTSpecial Weather StatementLMKGarrard, Lincoln25 min
Jun 12, 12:45 PM EDTSpecial Weather StatementLMKSpencer30 min
Jun 12, 1:09 PM EDTSpecial Weather StatementLMKAnderson36 min
Jun 12, 1:41 PM EDTSpecial Weather StatementLMKScott, Woodford49 min
Jun 12, 2:11 PM EDTFlash Flood WatchLMKBreckinridge, Hancock, Meade7 hr
Jun 12, 2:22 PM EDTSpecial Weather StatementLMKBourbon38 min
Jun 12, 2:28 PM EDTAreal Flood AdvisoryLMKBourbon, Nicholas2 hr
Jun 12, 2:54 PM EDTSpecial Weather StatementLMKOhio36 min
Jun 12, 3:37 PM EDTSpecial Weather StatementLMKOhio38 min
Jun 12, 4:18 PM EDTSpecial Weather StatementLMKBreckinridge42 min
Jun 12, 4:34 PM EDTSpecial Weather StatementLMKGrayson26 min
Jun 12, 4:43 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Hardin, Meade47 min
Jun 12, 5:06 PM EDTSpecial Weather StatementLMKEdmonson, Grayson39 min
Jun 12, 5:22 PM EDTSpecial Weather StatementLMKHardin, Meade23 min
Jun 12, 5:56 PM EDTSpecial Weather StatementLMKHardin34 min
Jun 12, 5:59 PM EDTSpecial Weather StatementLMKBullitt, Nelson31 min
Jun 12, 6:18 PM EDTSpecial Weather StatementLMKHancock42 min
Jun 12, 6:23 PM EDTSpecial Weather StatementLMKBullitt, Larue, Nelson, Spencer37 min
Jun 12, 6:30 PM EDTSevere Thunderstorm WarningLMKBullitt, Hardin, Larue, Nelson30 min
Jun 12, 6:36 PM EDTSevere Thunderstorm WarningLMKHardin, Larue9 min
Jun 12, 6:50 PM EDTSpecial Weather StatementLMKSpencer25 min
Jun 12, 6:55 PM EDTSpecial Weather StatementLMKNelson35 min
Jun 12, 7:00 PM EDTSpecial Weather StatementLMKBreckinridge, Hancock, Ohio45 min
Jun 12, 7:10 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Hancock, Ohio35 min
Jun 12, 7:15 PM EDTSpecial Weather StatementLMKAnderson, Boyle, Franklin, Marion, Mercer, Taylor and 2 more45 min
Jun 12, 7:29 PM EDTSevere Thunderstorm WarningLMKAnderson, Mercer, Washington31 min
Jun 12, 7:37 PM EDTAreal Flood AdvisoryLMKAnderson, Mercer, Washington113 min
Jun 12, 7:42 PM EDTSpecial Weather StatementLMKBreckinridge, Ohio63 min
Jun 12, 7:58 PM EDTSpecial Weather StatementLMKBoyle, Mercer47 min
Jun 11, 11:20 PM EDTSpecial Weather StatementLMKDubois, Perry55 min
Jun 12, 9:52 AM EDTFlash Flood WarningLMKDubois3 hr
Jun 12, 11:04 AM EDTAreal Flood AdvisoryLMKDubois3 hr
Jun 12, 5:34 PM EDTSpecial Weather StatementLMKDubois41 min

Nearby

Flash Flood Watches in Indiana, 2018Every flash flood watch in 2018

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.