Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Wilmington, OH

April 23, 20115 counties in Indiana; 8 counties in Kentucky; Hamilton County, Ohio

NWS Wilmington, OH issued this flash flood warning at Apr 23, 2011, 1:45 PM EDT for 5 counties in Indiana; 8 counties in Kentucky; Hamilton County, Ohio. It was in force for 8 hr. 2 reports 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 23, 2011, 1:45 PM EDT (17:45 UTC)
Expired: Apr 23, 2011, 9:30 PM EDT
In force: 8 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

Counties Dearborn County, IN, Franklin County, IN, Ohio County, IN, Ripley County, IN, Switzerland County, IN, Boone County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Owen County, KY, Pendleton County, KY, Hamilton County, OH

The radar

The Cincinnati radar (KILN), 119 km from the middle of the area, began a volume at 17:45 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

Time	Report	Where	Remark
Apr 23, 4:00 PM EDT	FLASH FLOOD	Covington, KY	WET WELLS OF STORM DRAINS OVERWHELMED. 2 1/2 TO 3 FEET OF WATER ON FAIRFIELD AVENUE. DRAINS FAILED FROM COVINGTON TO NEWPORT TO BELLEVUE TO DAYTON.
Apr 23, 4:41 PM EDT	FLASH FLOOD	4 Nnw Crescent Springs, OH	STREAM OUT OF ITS BANK AND FOLEY RD. HAD 7 INCHES OF WATER RUNNING ACROSS IT.

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, 5.8 hours before the alert went out and 121 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 25 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 405 m²/s²
0-3 km storm-relative helicity: 323 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.

373 
WGUS51 KILN 231745
FFWILN
INC029-047-115-137-155-KYC015-037-041-077-081-117-187-191-OHC061-
232345-
/O.NEW.KILN.FF.W.0013.110423T1745Z-110423T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
145 PM EDT SAT APR 23 2011

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN NORTHERN KENTUCKY...
  CAMPBELL COUNTY IN NORTHERN KENTUCKY...
  CARROLL COUNTY IN NORTHERN KENTUCKY...
  GALLATIN COUNTY IN NORTHERN KENTUCKY...
  NORTHERN GRANT COUNTY IN NORTHERN KENTUCKY...
  KENTON COUNTY IN NORTHERN KENTUCKY...
  NORTHWESTERN OWEN COUNTY IN NORTHERN KENTUCKY...
  NORTHERN PENDLETON COUNTY IN NORTHERN KENTUCKY...
  DEARBORN COUNTY IN SOUTHEAST INDIANA...
  SOUTHERN FRANKLIN COUNTY IN SOUTHEAST INDIANA...
  OHIO COUNTY IN SOUTHEAST INDIANA...
  RIPLEY COUNTY IN SOUTHEAST INDIANA...
  SWITZERLAND COUNTY IN SOUTHEAST INDIANA...
  HAMILTON COUNTY IN SOUTHWEST OHIO...

* UNTIL 745 PM EDT.

* AT 142 PM EDT...RADAR INDICATED A LARGE AREA OF THUNDERSTORMS 
  MOVING NORTHEAST INTO THE REGION FROM SOUTHERN INDIANA AND 
  NORTH CENTRAL KENTUCKY. 

* HEAVY RAIN WILL FALL ACROSS THE WARNED AREA WITH 1 TO 3 INCHES 
  POSSIBLE THROUGH 745 PM EDT. RUNOFF FROM THIS EXCESSIVE RAINFALL 
  MAY CAUSE FLASH FLOODING TO OCCUR.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ALEXANDRIA...
ANDERSON TOWNSHIP...AURORA...BATESVILLE...BELLEVUE...BLUE ASH...
BRIGHT...BURLINGTON...CARROLLTON...CHEVIOT...CINCINNATI AND
CLARYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ACT QUICKLY TO PROTECT YOUR LIFE IF YOU ARE IN A LOW LYING AREA...
ALONG A CREEK...STREAM OR IN AN AREA EXPERIENCING FLOODING. MOVE TO
HIGHER GROUND IMMEDIATELY.

NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. ONLY A FEW INCHES
OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. FIND AN
ALTERNATE ROUTE OR WAIT UNTIL THE WATER RECEDES.

&&

LAT...LON 3920 8545 3927 8530 3934 8529 3929 8430
      3902 8432 3889 8423 3873 8422 3856 8502
      3856 8507 3859 8509 3858 8521 3874 8534
      3874 8526 3870 8521 3891 8521 3892 8545

$$

2 follow-up statements

301 
WGUS51 KILN 232342
FFWILN
INC029-047-115-137-155-KYC015-037-041-077-081-117-187-191-OHC061-
240130-
/O.EXT.KILN.FF.W.0013.000000T0000Z-110424T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
742 PM EDT SAT APR 23 2011

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN NORTHERN KENTUCKY...
  CAMPBELL COUNTY IN NORTHERN KENTUCKY...
  CARROLL COUNTY IN NORTHERN KENTUCKY...
  GALLATIN COUNTY IN NORTHERN KENTUCKY...
  NORTHERN GRANT COUNTY IN NORTHERN KENTUCKY...
  KENTON COUNTY IN NORTHERN KENTUCKY...
  NORTHWESTERN OWEN COUNTY IN NORTHERN KENTUCKY...
  NORTHERN PENDLETON COUNTY IN NORTHERN KENTUCKY...
  DEARBORN COUNTY IN SOUTHEAST INDIANA...
  SOUTHERN FRANKLIN COUNTY IN SOUTHEAST INDIANA...
  OHIO COUNTY IN SOUTHEAST INDIANA...
  RIPLEY COUNTY IN SOUTHEAST INDIANA...
  SWITZERLAND COUNTY IN SOUTHEAST INDIANA...
  HAMILTON COUNTY IN SOUTHWEST OHIO...

* UNTIL 930 PM EDT.

* AT 740 PM EDT...RADAR INDICATED THAT SHOWERS AND THUNDERSTORMS 
  WERE MOVING BACK INTO THE WARNED AREA. THE GROUND REMAINS SATURATED
  WITH SOME PLACES STILL DEALING WITH FLOODING FROM EARLIER 
  RAINFALL. 

* HEAVY RAIN WILL REDEVELOP WITH ANOTHER 1 TO 2 INCHES POSSIBLE   
  THROUGH 930 PM EDT. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL 
  CAUSE ADDITIONAL FLASH FLOODING TO OCCUR.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ALEXANDRIA...
ANDERSON TOWNSHIP...AURORA...BATESVILLE...BELLEVUE...BLUE ASH...
BRIGHT...BURLINGTON...CARROLLTON...CHEVIOT...CINCINNATI AND
CLARYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. ONLY A FEW INCHES
OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. FIND AN
ALTERNATE ROUTE OR WAIT UNTIL THE WATER RECEDES.

DO NOT ALLOW CHILDREN TO PLAY NEAR STORM DRAINS OR FLOODED CREEKS AND
STREAMS. THEY CAN EASILY BE SWEPT AWAY OR PULLED UNDER BY FAST MOVING
WATER.

&&

LAT...LON 3920 8545 3927 8530 3934 8529 3929 8430
      3902 8432 3889 8423 3873 8422 3856 8502
      3856 8507 3859 8509 3858 8521 3874 8534
      3874 8526 3870 8521 3891 8521 3892 8545

$$

151 
WGUS71 KILN 240123
FFSILN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
923 PM EDT SAT APR 23 2011

INC029-047-115-137-155-KYC015-037-041-077-081-117-187-191-OHC061-
240131-
/O.EXP.KILN.FF.W.0013.000000T0000Z-110424T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SWITZERLAND IN-OHIO IN-FRANKLIN IN-DEARBORN IN-RIPLEY IN-KENTON KY-
OWEN KY-PENDLETON KY-BOONE KY-CAMPBELL KY-CARROLL KY-GALLATIN KY-
GRANT KY-HAMILTON OH-
923 PM EDT SAT APR 23 2011

...THE FLASH FLOOD WARNING FOR RIPLEY...DEARBORN...SOUTHERN
FRANKLIN...OHIO AND SWITZERLAND COUNTIES IN SOUTHEAST INDIANA...AND
NORTHERN GRANT...GALLATIN...CARROLL...CAMPBELL...BOONE...NORTHERN
PENDLETON...NORTHWESTERN OWEN AND KENTON COUNTIES IN NORTHERN
KENTUCKY...AND HAMILTON COUNTY IN SOUTHWEST OHIO WILL EXPIRE AT 930
PM EDT...

STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING 
TO RECEDE...ENDING THE FLOOD THREAT FOR NOW. HOWEVER...A FLASH FLOOD 
WATCH REMAINS IN EFFECT AND ADDITIONAL SHOWERS AND THUNDERSTORMS 
WILL MOVE INTO THE REGION OVERNIGHT. PEOPLE SHOULD REMAIN ALERT... 
ESPECIALLY IF THEY ARE IN A LOW LYING AREA...ALONG A CREEK...STREAM 
OR IN AN AREA EXPERIENCING FLOODING.

IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.

LAT...LON 3920 8545 3927 8530 3934 8529 3929 8430
      3902 8432 3889 8423 3873 8422 3856 8502
      3856 8507 3859 8509 3858 8521 3874 8534
      3874 8526 3870 8521 3891 8521 3892 8545

$$

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 23, 1:08 AM EDT	Areal Flood Advisory	ILN	Dearborn, Franklin, Ohio, Ripley, Switzerland	5 hr
Apr 23, 1:59 AM EDT	Tornado Warning	ILN	Dearborn, Ripley	31 min
Apr 23, 2:03 AM EDT	Flash Flood Warning	ILN	Dearborn, Ripley	3 hr
Apr 23, 2:21 AM EDT	Flash Flood Warning	ILN	Ohio	3 hr
Apr 23, 5:59 AM EDT	Areal Flood Advisory	ILN	Dearborn, Franklin, Ohio, Ripley, Switzerland	7 hr
Apr 23, 12:51 PM EDT	Areal Flood Advisory	ILN	Dearborn, Franklin, Ohio, Ripley, Switzerland	6 hr
Apr 23, 1:36 PM EDT	Special Weather Statement	ILN	Ohio, Switzerland	39 min
Apr 23, 2:35 PM EDT	Special Weather Statement	ILN	Switzerland	40 min
Apr 23, 2:53 PM EDT	Severe Thunderstorm Warning	ILN	Switzerland	37 min
Apr 23, 5:27 PM EDT	River Flood Warning	ILN	Switzerland	5 days
Apr 22, 8:57 PM EDT	Areal Flood Advisory	ILN	Lewis	3 hr
Apr 23, 1:49 AM EDT	Severe Thunderstorm Warning	ILN	Carroll, Gallatin, Grant, Owen	41 min
Apr 23, 2:11 AM EDT	Areal Flood Advisory	ILN	Bracken, Mason	16 hr
Apr 23, 2:50 AM EDT	Areal Flood Advisory	ILN	Lewis	16 hr
Apr 23, 4:08 AM EDT	Areal Flood Advisory	ILN	Lewis	5 hr
Apr 23, 5:23 AM EDT	Special Weather Statement	ILN	Owen	37 min
Apr 23, 5:34 AM EDT	Severe Thunderstorm Warning	ILN	Grant, Owen	26 min
Apr 23, 6:14 AM EDT	Special Weather Statement	ILN	Lewis, Mason, Robertson	46 min
Apr 23, 6:21 AM EDT	Areal Flood Advisory	ILN	Bracken, Grant, Mason, Owen, Pendleton, Robertson	6 hr
Apr 23, 6:46 AM EDT	Severe Thunderstorm Warning	ILN	Lewis	29 min
Apr 23, 9:20 AM EDT	Flash Flood Warning	ILN	Lewis	4 hr
Apr 23, 10:01 AM EDT	Special Weather Statement	ILN	Bracken, Grant, Lewis, Mason, Owen, Robertson	59 min
Apr 23, 11:12 AM EDT	Special Weather Statement	ILN	Owen	63 min
Apr 23, 12:00 PM EDT	Special Weather Statement	ILN	Owen	60 min
Apr 23, 12:08 PM EDT	Flash Flood Warning	ILN	Bracken, Grant, Lewis, Mason, Owen, Pendleton and 1 more	9 hr
Apr 23, 1:27 PM EDT	Special Weather Statement	ILN	Owen	63 min
Apr 23, 2:48 PM EDT	Special Weather Statement	ILN	Bracken	27 min
Apr 23, 3:02 PM EDT	Tornado Warning	ILN	Boone, Campbell, Gallatin, Grant, Kenton, Owen and 1 more	28 min
Apr 23, 3:14 PM EDT	Tornado Warning	ILN	Bracken, Grant, Pendleton	31 min
Apr 23, 3:21 PM EDT	Tornado Warning	ILN	Bracken, Campbell, Pendleton	24 min
Apr 23, 3:31 PM EDT	Flash Flood Warning	ILN	Bracken, Lewis, Mason	6 hr
Apr 23, 3:42 PM EDT	Tornado Warning	ILN	Bracken, Lewis, Mason, Robertson	48 min
Apr 23, 3:44 PM EDT	Special Weather Statement	ILN	Robertson	46 min
Apr 23, 3:55 PM EDT	Tornado Warning	ILN	Lewis, Mason, Robertson	35 min
Apr 23, 4:19 PM EDT	Tornado Warning	ILN	Lewis	41 min
Apr 23, 5:27 PM EDT	River Flood Warning	ILN	Bracken, Lewis, Mason	50 hr
Apr 23, 5:27 PM EDT	River Flood Warning	ILN	Bracken, Campbell, Pendleton	29 hr
Apr 23, 5:27 PM EDT	River Flood Warning	ILN	Campbell, Kenton, Pendleton	43 hr
Apr 23, 5:27 PM EDT	River Flood Warning	ILN	Pendleton	47 hr
Apr 23, 12:42 AM EDT	Special Weather Statement	ILN	Mercer	48 min
Apr 23, 12:49 AM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Mercer	26 min
Apr 23, 1:13 AM EDT	Special Weather Statement	ILN	Darke, Shelby	47 min
Apr 23, 1:15 AM EDT	Special Weather Statement	ILN	Brown, Highland, Pike	45 min
Apr 23, 1:27 AM EDT	River Flood Warning	ILN	Adams	33 hr
Apr 23, 1:56 AM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Mercer	19 min
Apr 23, 3:08 AM EDT	Flash Flood Warning	ILN	Brown, Highland	3 hr
Apr 23, 4:20 AM EDT	Flash Flood Warning	ILN	Scioto	3 hr
Apr 23, 7:06 AM EDT	Special Weather Statement	ILN	Scioto	24 min
Apr 23, 4:14 PM EDT	Areal Flood Advisory	ILN	Butler, Champaign, Clark, Clinton, Fairfield, Fayette and 11 more	6 hr
Apr 23, 4:44 PM EDT	Special Weather Statement	ILN	Pike	31 min
Apr 23, 4:58 PM EDT	Tornado Warning	ILN	Scioto	21 min

Nearby

Flash Flood Warnings in Kentucky, 2011 Flash Flood Warnings in Indiana, 2011 Flash Flood Warnings in Ohio, 2011 Every 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.