Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 6, NWS Louisville, KY

April 12, 2011Mercer County, Kentucky

NWS Louisville, KY issued this flash flood warning at Apr 12, 2011, 8:50 AM EDT for Mercer 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
Apr 12, 2011, 8:50 AM EDT (12:50 UTC)
Expired
Apr 12, 2011, 11:45 AM EDT
In force
3 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

County Mercer County, KY

The radar

The Louisville radar (KLVX), 97 km from the middle of the area, began a volume at 12:54 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
Apr 12, 8:52 AM EDTFLASH FLOODHarrodsburg, KYKENTUCKY HIGHWAY EASTBOUND AND WESTBOUND LANES NEAR HARRODSBURG CLOSED DUE TO FLOODING

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 0.8 hours before the alert went out and 198 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, Cncnati-Daytn, OH at 12:00Z on 2011-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2011-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

132 
WGUS53 KLMK 121250
FFWLMK
KYC167-121545-
/O.NEW.KLMK.FF.W.0006.110412T1250Z-110412T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
850 AM EDT TUE APR 12 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MERCER COUNTY IN EAST CENTRAL KENTUCKY...

* UNTIL 1145 AM EDT

* AT 844 AM EDT...EMERGENCY MANAGEMENT REPORTED KENTUCKY HIGHWAY 68 
EASTBOUND AND WESTBOUND LANES NEAR HARRODSBURG CLOSED DUE TO 
FLOODING.

* LOCATIONS IMPACTED INCLUDE...HARRODSBURG...

  IN ADDITION...DUNCAN...VANARSDELL AND TERRAPIN ARE INCLUDED IN THIS
  FLASH FLOOD WARNING.

ADDITIONAL RAINFALL AMOUNTS OF A HALF INCH TO ONE INCH 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.

TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL FREE
AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3783 8472 3773 8471 3771 8475 3772 8480
      3768 8503 3786 8502 3787 8500 3789 8502
      3793 8499 3795 8495 3794 8488 3796 8481
      3793 8481 3791 8484 3789 8481 3790 8479
      3785 8479 3785 8470

$$

AML
2 follow-up statements
683 
WGUS73 KLMK 121428
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1028 AM EDT TUE APR 12 2011

KYC167-121545-
/O.CON.KLMK.FF.W.0006.000000T0000Z-110412T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER KY-
1028 AM EDT TUE APR 12 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT FOR
MERCER COUNTY...

AT 1022 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED CONTINUED 
FLOODING ACROSS MERCER COUNTY WITH SEVERAL ROADS CLOSED INCLUDING 
KENTUCKY HIGHWAY 68.

* LOCATIONS IMPACTED INCLUDE...
  HARRODSBURG...

  IN ADDITION...VANARSDELL...TERRAPIN AND KIRKWOOD ARE INCLUDED IN
  THIS FLASH FLOOD WARNING.

ADDITIONAL RAINFALL AMOUNTS OF UP TO A HALF INCH 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.

TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL FREE
AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3783 8472 3773 8471 3771 8475 3772 8480
      3768 8503 3786 8502 3787 8500 3789 8502
      3793 8499 3795 8495 3794 8488 3796 8481
      3793 8481 3791 8484 3789 8481 3790 8479
      3785 8479 3785 8470

$$

AML
898 
WGUS73 KLMK 121544
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1144 AM EDT TUE APR 12 2011

KYC167-121553-
/O.EXP.KLMK.FF.W.0006.000000T0000Z-110412T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER KY-
1144 AM EDT TUE APR 12 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1145 AM EDT FOR MERCER
COUNTY...

HOWEVER...AN AREAL FLOOD WARNING IS STILL IN EFFECT UNTIL 445 PM 
EDT. LIGHT TO MODERATE RAIN WILL CONTINUE INTO THE AFTERNOON WITH AN 
ADDITIONAL INCH OF RAIN POSSIBLE. GREAT CARE SHOULD STILL BE TAKEN 
IF DRIVING THROUGH AREAS THAT ARE KNOWN TO FLOOD EASILY. IF YOU 
ENCOUNTER A FLOODED ROAD DO NOT ATTEMPT TO CROSS IT! OBEY BARRICADES!

TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL FREE
AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3783 8472 3773 8471 3771 8475 3772 8480
      3768 8503 3786 8502 3787 8500 3789 8502
      3793 8499 3795 8495 3794 8488 3796 8481
      3793 8481 3791 8484 3789 8481 3790 8479
      3785 8479 3785 8470

$$

13

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 8:14 PM EDTSpecial Weather StatementLMKBarren, Metcalfe31 min
Apr 11, 8:46 PM EDTSpecial Weather StatementLMKAdair, Cumberland, Metcalfe, Monroe29 min
Apr 11, 9:36 PM EDTSpecial Weather StatementLMKRussell24 min
Apr 12, 4:27 AM EDTFlash Flood WarningLMKAllen, Breckinridge, Butler, Edmonson, Grayson, Logan and 3 more4 hr
Apr 12, 5:22 AM EDTRiver Flood WarningLMKNicholas, Robertson3 days
Apr 12, 5:56 AM EDTRiver Flood WarningLMKOhio66 hr
Apr 12, 7:23 AM EDTRiver Flood WarningLMKBourbon48 hr
Apr 12, 7:37 AM EDTAreal Flood AdvisoryLMKAdair, Allen, Barren, Casey, Clinton, Cumberland and 9 more3 hr
Apr 12, 7:41 AM EDTAreal Flood AdvisoryLMKAnderson, Boyle, Clark, Fayette, Franklin, Garrard and 9 more3 hr
Apr 12, 7:46 AM EDTFlash Flood WarningLMKNicholas3 hr
Apr 12, 7:52 AM EDTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Grayson, Hardin, Henry, Jefferson and 7 more3 hr
Apr 12, 8:00 AM EDTAreal Flood AdvisoryLMKHancock3 hr
Apr 12, 8:09 AM EDTAreal Flood WarningLMKHardin, Larue3 hr
Apr 12, 8:15 AM EDTFlash Flood WarningLMKAnderson, Bourbon, Fayette, Franklin, Harrison, Jessamine and 2 more3 hr
Apr 12, 8:22 AM EDTAreal Flood WarningLMKHancock3 hr
Apr 12, 8:25 AM EDTAreal Flood WarningLMKSpencer3 hr
Apr 12, 8:34 AM EDTAreal Flood WarningLMKButler, Warren3 hr
Apr 12, 9:46 AM EDTFlash Flood WarningLMKWashington3 hr
Apr 12, 10:19 AM EDTRiver Flood WarningLMKHarrison45 hr
Apr 12, 10:30 AM EDTAreal Flood AdvisoryLMKAdair, Casey, Clinton, Cumberland, Lincoln, Russell and 1 more6 hr
Apr 12, 10:34 AM EDTRiver Flood WarningLMKWarren21 hr
Apr 12, 10:34 AM EDTRiver Flood WarningLMKHart61 hr
Apr 12, 10:34 AM EDTRiver Flood WarningLMKEdmonson4 days
Apr 12, 10:34 AM EDTRiver Flood WarningLMKButler, Warren6 days
Apr 12, 10:34 AM EDTRiver Flood WarningLMKButler, Muhlenberg, Ohio8 days
Apr 12, 10:48 AM EDTAreal Flood WarningLMKAnderson, Bourbon, Boyle, Clark, Fayette, Franklin and 10 more6 hr
Apr 12, 10:56 AM EDTRiver Flood WarningLMKHardin, Nelson6 days
Apr 12, 11:37 AM EDTRiver Flood WarningLMKJefferson, Oldham4 days
Apr 12, 11:37 AM EDTRiver Flood WarningLMKJefferson, Meade72 hr
Apr 12, 11:37 AM EDTRiver Flood WarningLMKBreckinridge, Hancock7 days
Apr 12, 11:37 AM EDTRiver Flood WarningLMKBreckinridge, Hancock27 days
Apr 12, 11:48 AM EDTAreal Flood AdvisoryLMKAllen, Butler, Edmonson, Logan, Simpson, Warren6 hr

Nearby

Flash Flood Warnings in Kentucky, 2011Every flash flood warning in 2011

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.