Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 16, NWS Wilmington, OH

May 10, 2011Bracken County, Pendleton County, Robertson County, Kentucky

NWS Wilmington, OH issued this flash flood warning at May 10, 2011, 3:51 PM EDT for Bracken County, Pendleton County, Robertson County, Kentucky. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 10, 2011, 3:51 PM EDT (19:51 UTC)
Expired
May 10, 2011, 6:45 PM EDT
In force
3 hr
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Flood severity
None

Counties Bracken County, KY, Pendleton County, KY, Robertson County, KY

The radar

The Cincinnati radar (KILN), 99 km from the middle of the area, began a volume at 19:54 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.9 hours before the alert went out and 101 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 2011-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 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, Cncnati-Daytn, OH at 12:00Z on 2011-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 square meters per square second.19395878Sfc1 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
9 J/kg
Mixed-layer CIN
-487 J/kg
Mixed-layer LCL
1473 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

Open this sounding in Storm Lab

The text

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

052 
WGUS51 KILN 101951
FFWILN
KYC023-191-201-102245-
/O.NEW.KILN.FF.W.0016.110510T1951Z-110510T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
351 PM EDT TUE MAY 10 2011

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BRACKEN COUNTY IN NORTHERN KENTUCKY...
  CENTRAL PENDLETON COUNTY IN NORTHERN KENTUCKY...
  ROBERTSON COUNTY IN NORTHERN KENTUCKY...

* UNTIL 645 PM EDT.

* AT 345 PM EDT...RADAR INDICATED THAT THUNDERSTORMS HAD PRODUCED   
HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR ESTIMATED UP TO TWO 
INCHES OF RAIN OVER PARTS OF PENDLETON AND BRACKEN COUNTIES...WITH 
UP TO ONE AND A HALF INCHES OF RAIN OVER ROBERTSON COUNTY. 

* HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA WITH ANOTHER   
INCH AND A HALF OF RAIN POSSIBLE THROUGH 645 PM EDT. RUNOFF FROM 
THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR.

FLOODING IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS OF CENTRAL
PENDLETON...ROBERTSON AND SOUTHERN BRACKEN COUNTIES...INCLUDING
ABIGAIL...ALHAMBRA...BERLIN...BROWNING CORNER...BURIKA...
GERMANTOWN...HITTVILLE...KENTONTOWN...MCKINNEYSBURG...MILFORD...
MITCHELLS MILL AND MOUNT OLIVET.

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 3848 8417 3852 8419 3855 8417 3855 8421
      3858 8421 3857 8428 3864 8430 3870 8422
      3867 8396 3859 8399 3859 8397 3853 8396
      3849 8393 3843 8399

$$

HATZOS
1 follow-up statement
266 
WGUS71 KILN 102246
FFSILN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
646 PM EDT TUE MAY 10 2011

KYC023-191-201-102256-
/O.EXP.KILN.FF.W.0016.000000T0000Z-110510T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PENDLETON KY-ROBERTSON KY-BRACKEN KY-
646 PM EDT TUE MAY 10 2011

...THE FLASH FLOOD WARNING FOR SOUTHERN BRACKEN...ROBERTSON AND
CENTRAL PENDLETON COUNTIES HAS EXPIRED...

HEAVY RAINFALL HAS ENDED FOR THE WARNED AREA. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3848 8417 3852 8419 3855 8417 3855 8421
      3858 8421 3857 8428 3864 8430 3870 8422
      3867 8396 3859 8399 3859 8397 3853 8396
      3849 8393 3843 8399

$$

HATZOS

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 2:44 PM EDTSevere Thunderstorm WarningILNMason, Robertson46 min
May 10, 3:11 PM EDTSevere Thunderstorm WarningILNBracken, Pendleton49 min
May 10, 3:30 PM EDTAreal Flood AdvisoryILNBracken, Pendleton, Robertson3 hr
May 10, 3:33 PM EDTSevere Thunderstorm WarningILNBracken, Mason, Pendleton, Robertson57 min
May 10, 4:28 PM EDTSpecial Weather StatementILNLewis62 min
May 10, 6:45 PM EDTSevere Thunderstorm WarningILNLewis, Mason45 min
May 10, 7:16 PM EDTTornado WarningILNLewis29 min
May 10, 7:43 PM EDTSpecial Weather StatementILNLewis32 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.