Alert archive / Kentucky / Flash Flood Warnings in 2012

Flash Flood Warning 23, NWS Louisville, KY

July 24, 2012Larue County, Marion County, Nelson County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jul 24, 2012, 5:16 PM EDT for Larue County, Marion County, Nelson County, Kentucky. It was in force for 62 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 24, 2012, 5:16 PM EDT (21:16 UTC)
Expired
Jul 24, 2012, 6:18 PM EDT
In force
62 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Larue County, KY, Marion County, KY, Nelson County, KY

The radar

The Louisville radar (KLVX), 59 km from the middle of the area, began a volume at 21:19 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 12:00Z, 9.3 hours before the alert went out and 186 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 2012-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1324 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2012-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
1324 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1062 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

839 
WGUS53 KLMK 242116
FFWLMK
KYC123-155-179-250015-
/O.NEW.KLMK.FF.W.0023.120724T2116Z-120725T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
516 PM EDT TUE JUL 24 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN LARUE COUNTY IN NORTH CENTRAL KENTUCKY...
  SOUTHERN NELSON COUNTY IN NORTH CENTRAL KENTUCKY...
  WESTERN MARION COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 815 PM EDT

* AT 510 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAINFALL FROM THUNDERSTORMS TRAINING OVER THE WARNED 
AREA.  RADAR RAINFALL ESTIMATES INDICATE THAT 2 TO 4 INCHES OF RAIN 
HAS FALLEN IN THE WARNING AREA WHICH IS EXPECTED TO CAUSE FLOODING 
PROBLEMS.

* LOCATIONS IMPACTED INCLUDE MAINLY RURAL AREAS OF EASTERN LARUE...
  SOUTHERN NELSON AND WESTERN MARION COUNTIES...INCLUDING HOWARDSTOWN
  AND GETHSEMANE.

  FLASH FLOOD PRONE AREAS IN THIS WARNING...
  SLATE CREEK OVERFLOWS ONTO HIGHWAY 527.
  PRATHER CREEK OVERFLOWS ONTO HIGHWAY 527.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

REPORT FLOODING TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO THE
NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

&&

LAT...LON 3757 8561 3765 8554 3756 8537 3747 8546

$$

AMS
1 follow-up statement
508 
WGUS73 KLMK 242218
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
618 PM EDT TUE JUL 24 2012

KYC123-155-179-242227-
/O.CAN.KLMK.FF.W.0023.000000T0000Z-120725T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LARUE KY-MARION KY-NELSON KY-
618 PM EDT TUE JUL 24 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN NELSON...
WESTERN MARION AND EASTERN LARUE COUNTIES...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA.  ANY FLOODING THAT MAY HAVE OCCURRED SHOULD BE RECEDING.

REPORT FLOODING OR SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST 
YOUR REPORT TO THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR EASTERN KENTUCKY.

LAT...LON 3757 8561 3765 8554 3756 8537 3747 8546

$$

AMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 8:56 AM EDTSpecial Weather StatementLMKBourbon, Harrison, Nicholas29 min
Jul 24, 9:35 AM EDTSpecial Weather StatementLMKNicholas30 min
Jul 24, 1:05 PM EDTSpecial Weather StatementLMKBourbon, Fayette, Harrison, Nicholas, Scott45 min
Jul 24, 3:46 PM EDTHeat AdvisoryLMKAdair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more29 hr
Jul 24, 3:58 PM EDTSpecial Weather StatementLMKBoyle32 min
Jul 24, 4:14 PM EDTSpecial Weather StatementLMKMarion31 min
Jul 24, 4:21 PM EDTSevere Thunderstorm WarningLMKBoyle, Casey, Marion29 min
Jul 24, 4:49 PM EDTSpecial Weather StatementLMKLarue31 min
Jul 24, 5:02 PM EDTSevere Thunderstorm WarningLMKLarue, Marion, Nelson33 min
Jul 24, 5:08 PM EDTAreal Flood AdvisoryLMKLarue, Marion, Nelson75 min
Jul 24, 5:35 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Hancock45 min
Jul 24, 5:37 PM EDTSpecial Weather StatementLMKTaylor43 min
Jul 24, 5:46 PM EDTSpecial Weather StatementLMKMeade29 min
Jul 24, 6:09 PM EDTAreal Flood AdvisoryLMKGreen, Larue, Taylor3 hr
Jul 24, 6:14 PM EDTSpecial Weather StatementLMKHardin31 min
Jul 24, 6:21 PM EDTSpecial Weather StatementLMKGreen44 min
Jul 24, 6:43 PM EDTAreal Flood AdvisoryLMKGreen, Hardin, Hart, Larue2 hr
Jul 24, 6:45 PM EDTSpecial Weather StatementLMKHart30 min
Jul 24, 7:06 PM EDTSpecial Weather StatementLMKGreen44 min
Jul 24, 7:10 PM EDTSevere Thunderstorm WarningLMKGreen, Hardin, Hart, Larue40 min
Jul 24, 7:47 PM EDTSpecial Weather StatementLMKHart28 min

Nearby

Flash Flood Warnings in Kentucky, 2012Every flash flood warning in 2012

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.