Alert archive / Kentucky / Flash Flood Watches in 2016

Flash Flood Watch 1, NWS Louisville, KY

May 12, 201633 counties in Kentucky

NWS Louisville, KY issued this flash flood watch at May 12, 2016, 1:48 AM CDT for 33 counties in Kentucky. It took effect at May 12, 2016, 3:00 AM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
May 12, 2016, 1:48 AM CDT (06:48 UTC)
In effect from
May 12, 2016, 3:00 AM CDT
Expired
May 12, 2016, 9:21 PM CDT
In force
18 hr
Issued by
NWS Louisville, KY
Flood severity
None
All 33 counties

Adair County, KY, Allen County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hart County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nicholas County, KY, Ohio County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 82 km from the middle of the area, began a volume at 06:52 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, 6.8 hours before the alert went out and 177 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 2016-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 541 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 2016-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 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
541 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
2087 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
89 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 May 12, 1:41 AM CDT, 7 minutes earlier.

Area forecast discussion, May 12, 1:41 AM CDT, 7 minutes before
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Hazardous weather outlook, May 11, 4:07 PM CDT, 9 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
507 PM EDT WED MAY 11 2016

INZ078-079-091-092-KYZ023>043-045>049-053>057-061>067-070>078-081-
082-122115-
SCOTT-JEFFERSON-FLOYD-CLARK-HANCOCK-BRECKINRIDGE-MEADE-OHIO-GRAYSON-
HARDIN-BULLITT-OLDHAM-TRIMBLE-HENRY-SHELBY-FRANKLIN-HARRISON-SPENCER-
ANDERSON-WOODFORD-FAYETTE-BOURBON-NICHOLAS-NELSON-WASHINGTON-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...SCOTTSBURG...MADISON...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...ALBANY
507 PM EDT WED MAY 11 2016 /407 PM CDT WED MAY 11 2016/

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

.DAY ONE...TONIGHT.

A COMPLEX OF THUNDERSTORMS WILL PUSH INTO SOUTHERN INDIANA AND
CENTRAL KENTUCKY THIS EVENING. THIS COMPLEX WILL BE CAPABLE OF
PRODUCING LOCALLY DAMAGING WINDS...SMALL HAIL...FREQUENT CLOUD TO
GROUND LIGHTNING...AND LOCALLY HEAVY RAINFALL WHICH COULD LEAD TO
LOCALIZED FLASH FLOODING.

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

STRONG TO SEVERE THUNDERSTORMS ARE AGAIN POSSIBLE THURSDAY.
DAMAGING WINDS AND HAIL WILL BE THE MAIN THREAT...BUT LOCALIZED
FLASH FLOODING WILL CONTINUE TO BE POSSIBLE IN AREAS THAT SEE REPEATED
ROUNDS OF THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ASKED TO REPORT ANY SEVERE WEATHER OR FLOODING
TONIGHT OR THURSDAY TO THE NATIONAL WEATHER SERVICE.

&&

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

INZ076-077-083-084-089-090-122115-
ORANGE-WASHINGTON-DUBOIS-CRAWFORD-PERRY-HARRISON-
INCLUDING THE CITIES OF...PAOLI...SALEM...JASPER...ENGLISH...
TELL CITY...CORYDON
507 PM EDT WED MAY 11 2016 /407 PM CDT WED MAY 11 2016/

...SEVERE THUNDERSTORM WATCH 169 IN EFFECT UNTIL 11 PM EDT /10 PM
CDT/ THIS EVENING...

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

.DAY ONE...TONIGHT.

A COMPLEX OF THUNDERSTORMS WILL PUSH INTO SOUTHERN INDIANA BY
EARLY EVENING. THIS COMPLEX WILL BE CAPABLE OF PRODUCING DAMAGING
WINDS AND LARGE HAIL. FREQUENT CLOUD TO GROUND LIGHTNING WILL
ACCOMPANY THE STRONGER STORMS...AND HEAVY RAINFALL COULD RESULT IN
LOCALIZED FLASH FLOODING.

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

STRONG TO SEVERE THUNDERSTORMS ARE AGAIN POSSIBLE THURSDAY.
DAMAGING WINDS AND HAIL WILL BE THE MAIN THREAT...BUT LOCALIZED
FLASH FLOODING WILL CONTINUE TO BE POSSIBLE IN AREAS THAT SEE REPEATED
ROUNDS OF THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ASKED TO REPORT ANY SEVERE WEATHER OR FLOODING
TONIGHT OR THURSDAY TO THE NATIONAL WEATHER SERVICE.

&&

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

KD/RAS

In the hours before

Special weather statement, May 11, 9:51 PM CDT, 3 hours 57 minutes before
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Local storm report, May 11, 10:01 PM CDT, 3 hours 47 minutes before
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Special weather statement, May 11, 10:06 PM CDT, 3 hours 42 minutes before
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Local storm report, May 11, 10:09 PM CDT, 3 hours 39 minutes before
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Special weather statement, May 11, 10:53 PM CDT, 2 hours 55 minutes before
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Local storm report, May 11, 11:49 PM CDT, 1 hour 59 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:00 PM CDTSevere Thunderstorm WarningLMKMeade30 min
May 11, 7:01 PM CDTSevere Thunderstorm WarningLMKHenry, Oldham, Shelby29 min
May 11, 7:06 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Meade24 min
May 11, 7:10 PM CDTSpecial Weather StatementLMKBreckinridge, Butler, Grayson, Ohio35 min
May 11, 7:28 PM CDTSevere Thunderstorm WarningLMKBullitt, Hardin, Jefferson, Meade32 min
May 11, 7:33 PM CDTSevere Thunderstorm WarningLMKJefferson27 min
May 11, 7:56 PM CDTSpecial Weather StatementLMKEdmonson, Grayson, Hardin, Larue, Warren49 min
May 11, 8:12 PM CDTSevere Thunderstorm WarningLMKButler, Edmonson, Grayson33 min
May 11, 8:14 PM CDTSevere Thunderstorm WarningLMKBullitt, Hardin, Nelson46 min
May 11, 8:16 PM CDTSevere Thunderstorm WarningLMKHenry, Oldham, Trimble29 min
May 11, 8:17 PM CDTSevere Thunderstorm WarningLMKHardin, Larue, Marion, Nelson28 min
May 11, 8:21 PM CDTSpecial Weather StatementLMKShelby, Spencer24 min
May 11, 8:30 PM CDTSevere Thunderstorm WarningLMKTrimble30 min
May 11, 8:40 PM CDTSpecial Weather StatementLMKBoyle, Mercer, Washington35 min
May 11, 8:43 PM CDTSevere Thunderstorm WarningLMKBoyle, Marion, Mercer, Washington32 min
May 11, 8:43 PM CDTSevere Thunderstorm WarningLMKHenry, Oldham, Shelby, Trimble32 min
May 11, 8:48 PM CDTSpecial Weather StatementLMKAnderson, Franklin, Shelby27 min
May 11, 8:59 PM CDTSpecial Weather StatementLMKAdair, Barren, Casey, Cumberland, Green, Marion and 4 more46 min
May 11, 9:20 PM CDTSevere Thunderstorm WarningLMKBoyle, Lincoln, Mercer25 min
May 11, 9:21 PM CDTSpecial Weather StatementLMKFayette, Franklin, Harrison, Jessamine, Mercer, Scott and 1 more24 min
May 11, 9:36 PM CDTSpecial Weather StatementLMKGrayson24 min
May 11, 9:41 PM CDTSevere Thunderstorm WarningLMKGarrard34 min
May 11, 9:45 PM CDTSevere Thunderstorm WarningLMKLincoln30 min
May 11, 9:51 PM CDTSpecial Weather StatementLMKBourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 1 more39 min
May 11, 10:06 PM CDTSpecial Weather StatementLMKMadison24 min
May 11, 10:53 PM CDTSpecial Weather StatementLMKGreen37 min
May 12, 2:00 AM CDTAreal Flood AdvisoryLMKBreckinridge, Grayson, Ohio4 hr
May 12, 7:33 AM CDTRiver Flood AdvisoryLMKWarren36 hr
May 12, 1:43 PM CDTSpecial Weather StatementLMKEdmonson, Larue32 min
May 12, 2:13 PM CDTRiver Flood AdvisoryLMKOhio36 hr
May 12, 2:26 PM CDTSpecial Weather StatementLMKLogan, Warren34 min
May 12, 2:37 PM CDTAreal Flood AdvisoryLMKBoyle, Garrard, Jessamine, Lincoln, Madison3 hr
May 12, 2:46 PM CDTSevere Thunderstorm WarningLMKGreen, Hart, Larue, Marion, Nelson, Taylor29 min
May 12, 2:58 PM CDTSevere Thunderstorm WarningLMKCumberland, Monroe47 min
May 12, 3:15 PM CDTSpecial Weather StatementLMKTaylor30 min
May 12, 3:24 PM CDTSpecial Weather StatementLMKEdmonson, Warren36 min
May 12, 3:57 PM CDTAreal Flood AdvisoryLMKHart63 min
May 11, 8:05 PM CDTSevere Thunderstorm WarningLMKClark, Floyd25 min
May 11, 8:08 PM CDTSevere Thunderstorm WarningLMKClark, Jefferson, Scott22 min

Nearby

Flash Flood Watches in Kentucky, 2016Every flash flood watch in 2016

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.