Alert archive / Kentucky / Flash Flood Warnings in 2016

Flash Flood Warning 9, NWS Louisville, KY

May 11, 2016Simpson County, Kentucky

NWS Louisville, KY issued this flash flood warning at May 11, 2016, 7:50 AM CDT for Simpson County, Kentucky. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 11, 2016, 7:50 AM CDT (12:50 UTC)
Expired
May 11, 2016, 10:45 AM CDT
In force
3 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

County Simpson County, KY

The radar

The Nashville radar (KOHX), 47 km from the middle of the area, began a volume at 12:53 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.

What was reported inside it

TimeReportWhereRemark
May 11, 8:41 AM CDTFLASH FLOOD3 Se Franklin, KYCOUPLE FEET OF WATER OVER A LOW WATER CROSSING ON KENNY PERRY DR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 0.8 hours before the alert went out and 60 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 12:00Z on 2016-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1524 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 12:00Z on 2016-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 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
1524 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
790 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
1.3
Supercell composite
6.7

Open this sounding in Storm Lab

The text

As transmitted.

586 
WGUS53 KLMK 111250
FFWLMK
KYC213-111545-
/O.NEW.KLMK.FF.W.0009.160511T1250Z-160511T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
750 AM CDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN SIMPSON COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 1045 AM CDT

* AT 749 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO
  TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED
  TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SCHWEIZER...PRICES MILL...PEDEN MILL...GEDDES...BLACK JACK...MIDDLETON
  AND NEOSHEO.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3665 8659 3665 8676 3675 8674 3678 8672
      3666 8641 3665 8641 3665 8651 3664 8654
      3664 8655 3663 8656

$$

RJS
1 follow-up statement
780 
WGUS73 KLMK 111420
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
920 AM CDT WED MAY 11 2016

KYC213-111545-
/O.CON.KLMK.FF.W.0009.000000T0000Z-160511T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SIMPSON KY-
920 AM CDT WED MAY 11 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
SOUTHERN SIMPSON COUNTY...

AT 919 AM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING AT A
LOW WATER CROSSING ON KENNY PERRY DRIVE. TWO TO THREE INCHES OF RAIN
HAVE ALREADY FALLEN ACCORDING TO THE KENTUCKY MESONET SITE NEAR
FRANKLIN. FLASH FLOODING LIKELY IS OCCURRING ON OTHER ROADS IN THE
AREA AS WELL.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SCHWEIZER...PRICES MILL...PEDEN MILL...GEDDES...BLACK JACK...MIDDLETON AND
NEOSHEO.

ADDITIONAL RAINFALL AMOUNTS OF ONE INCH ARE POSSIBLE IN THE WARNED
AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

&&

LAT...LON 3665 8659 3665 8676 3675 8674 3678 8672
      3666 8641 3665 8641 3665 8651 3664 8654
      3664 8655 3663 8656

$$

RJS

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 7:02 PM CDTSpecial Weather StatementLMKFranklin, Henry, Shelby43 min
May 10, 7:27 PM CDTSevere Thunderstorm WarningLMKAdair, Casey, Green, Russell, Taylor33 min
May 10, 7:31 PM CDTSevere Thunderstorm WarningLMKAdair, Cumberland, Metcalfe29 min
May 10, 7:51 PM CDTTornado WarningLMKCasey, Russell24 min
May 10, 7:58 PM CDTSevere Thunderstorm WarningLMKAdair, Cumberland, Metcalfe, Russell47 min
May 10, 7:59 PM CDTSevere Thunderstorm WarningLMKAdair, Casey, Lincoln, Russell46 min
May 10, 8:04 PM CDTSpecial Weather StatementLMKBreckinridge, Meade56 min
May 10, 8:10 PM CDTSevere Thunderstorm WarningLMKHardin, Meade20 min
May 10, 8:12 PM CDTSpecial Weather StatementLMKLogan33 min
May 10, 8:44 PM CDTSevere Thunderstorm WarningLMKRussell31 min
May 10, 8:50 PM CDTSpecial Weather StatementLMKLogan, Warren40 min
May 10, 8:51 PM CDTSevere Thunderstorm WarningLMKBreckinridge24 min
May 10, 9:00 PM CDTSevere Thunderstorm WarningLMKBoyle, Marion, Mercer, Washington30 min
May 10, 9:04 PM CDTSpecial Weather StatementLMKLogan26 min
May 10, 9:07 PM CDTSpecial Weather StatementLMKAnderson, Woodford23 min
May 10, 9:18 PM CDTSpecial Weather StatementLMKFayette, Woodford27 min
May 10, 9:28 PM CDTSevere Thunderstorm WarningLMKBoyle, Garrard, Jessamine, Mercer32 min
May 10, 9:31 PM CDTSpecial Weather StatementLMKGreen, Taylor29 min
May 10, 10:03 PM CDTSpecial Weather StatementLMKCasey27 min
May 10, 10:41 PM CDTSevere Thunderstorm WarningLMKCasey, Lincoln34 min
May 11, 12:06 AM CDTSpecial Weather StatementLMKRussell24 min
May 11, 3:51 AM CDTSpecial Weather StatementLMKAllen, Barren, Warren39 min
May 11, 4:38 AM CDTSpecial Weather StatementLMKBarren, Metcalfe, Monroe52 min
May 11, 7:17 AM CDTAreal Flood AdvisoryLMKLogan, Simpson3 hr
May 11, 7:36 AM CDTFlash Flood WarningLMKLogan3 hr
May 11, 10:19 AM CDTFlash Flood WarningLMKLogan, Simpson3 hr
May 11, 6:15 PM CDTSpecial Weather StatementLMKHancock30 min
May 11, 6:51 PM CDTSpecial Weather StatementLMKBreckinridge, Hancock, Meade24 min

Nearby

Flash Flood Warnings in Kentucky, 2016Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.