Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 40, NWS Paducah, KY

April 26, 201110 counties in Kentucky; 4 counties in Indiana

NWS Paducah, KY issued this flash flood warning at Apr 26, 2011, 12:32 AM CDT for 10 counties in Kentucky; 4 counties in Indiana. 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
Apr 26, 2011, 12:32 AM CDT (05:32 UTC)
Expired
Apr 26, 2011, 3:35 AM CDT
In force
3 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Pike County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Caldwell County, KY, Christian County, KY, Daviess County, KY, Henderson County, KY, Hopkins County, KY, McLean County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 70 km from the middle of the area, began a volume at 05:35 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 00:00Z, 5.5 hours before the alert went out and 187 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 00:00Z on 2011-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 211 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 00:00Z on 2011-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
211 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1752 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

078 
WGUS53 KPAH 260532
FFWPAH
INC125-147-163-173-KYC033-047-059-101-107-149-177-219-221-233-261030-
/O.NEW.KPAH.FF.W.0040.110426T0532Z-110426T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
1232 AM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DAVIESS COUNTY IN NORTHWEST KENTUCKY...
  HENDERSON COUNTY IN NORTHWEST KENTUCKY...
  HOPKINS COUNTY IN NORTHWEST KENTUCKY...
  MCLEAN COUNTY IN NORTHWEST KENTUCKY...
  WEBSTER COUNTY IN NORTHWEST KENTUCKY...
  CHRISTIAN COUNTY IN SOUTH CENTRAL KENTUCKY...
  MUHLENBERG COUNTY IN SOUTH CENTRAL KENTUCKY...
  TODD COUNTY IN SOUTH CENTRAL KENTUCKY...
  PIKE COUNTY IN SOUTHWEST INDIANA...
  SPENCER COUNTY IN SOUTHWEST INDIANA...
  VANDERBURGH COUNTY IN SOUTHWEST INDIANA...
  WARRICK COUNTY IN SOUTHWEST INDIANA...
  CALDWELL COUNTY IN WESTERN KENTUCKY...
  TRIGG COUNTY IN WESTERN KENTUCKY...

* UNTIL 530 AM CDT.

* AT 1228 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
WIDESPREAD SHOWERS AND THUNDERSTORMS SPREADING INTO SOUTHWEST 
INDIANA AND ACROSS FAR WEST KENTUCKY.  THESE SHOWERS AND STORMS WILL 
GRADUALLY SPREAD ACROSS ALL OF SOUTHWEST INDIANA...NORTHWEST 
KENTUCKY...AND THE PENNYRILE REGION OF WEST KENTUCKY.  THUNDERSTORMS 
WILL LIKELY PRODUCE ONE TO POSSIBLY ONE AND A HALF INCHES OF 
RAINFALL IN AN HOUR...ESPECIALLY ALONG THE LEADING EDGE OF THE 
PRECIPITATION.  AFTER THE STRONGEST STORMS PASS...RAINFALL RATES OF 
ONE QUARTER TO ONE HALF OF AN INCH AN HOUR WILL STILL BE POSSIBLE 
FOR A FEW HOURS.

* LOCATIONS IN THE WARNING INCLUDE...
  PETERSBURG...EVANSVILLE...HOPKINSVILLE...HENDERSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.  DO NOT DRIVE AROUND BARRIERS.

&&

LAT...LON 3793 8698 3767 8683 3748 8711 3722 8690
      3666 8706 3667 8807 3687 8817 3698 8789
      3721 8806 3737 8781 3765 8774 3787 8785
      3791 8771 3817 8770 3821 8732 3853 8748
      3854 8711 3821 8707 3821 8680 3807 8677

$$
2 follow-up statements
079 
WGUS73 KPAH 260737
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
237 AM CDT TUE APR 26 2011

INC125-147-163-173-KYC033-047-059-101-107-149-177-219-221-233-261030-
/O.CON.KPAH.FF.W.0040.000000T0000Z-110426T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VANDERBURGH IN-PIKE IN-WARRICK IN-SPENCER IN-HENDERSON KY-DAVIESS KY-
MCLEAN KY-WEBSTER KY-HOPKINS KY-MUHLENBERG KY-CALDWELL KY-
CHRISTIAN KY-TODD KY-TRIGG KY-
237 AM CDT TUE APR 26 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 AM CDT FOR
SPENCER...WARRICK...PIKE AND VANDERBURGH COUNTIES IN SOUTHWEST
INDIANA...AND HOPKINS...WEBSTER...MCLEAN...DAVIESS AND HENDERSON
COUNTIES IN NORTHWEST KENTUCKY...AND TODD...CHRISTIAN AND MUHLENBERG
COUNTIES IN SOUTH CENTRAL KENTUCKY...AND TRIGG AND CALDWELL COUNTIES
IN WESTERN KENTUCKY...

AT 233 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE WIDESPREAD SHOWERS ACROSS THE WARNED AREA.  ADDITIONAL 
RAINFALL AMOUNTS UP TO HALF AN INCH ARE STILL EXPECTED.  THESE 
ADDITIONAL AMOUNTS...COMBINED WITH RUNOFF FROM EARLIER HEAVY 
RAINFALL...MAY CAUSE OR FURTHER AGGRAVATE ANY FLASH FLOODING 
PROBLEMS.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.  DO NOT DRIVE AROUND 
ROAD BARRIERS.

&&

LAT...LON 3793 8698 3767 8683 3748 8711 3722 8690
      3666 8706 3667 8807 3687 8817 3698 8789
      3721 8806 3737 8781 3765 8774 3787 8785
      3791 8771 3817 8770 3821 8732 3853 8748
      3854 8711 3821 8707 3821 8680 3807 8677

$$
791 
WGUS73 KPAH 260835
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
335 AM CDT TUE APR 26 2011

INC125-147-163-173-KYC033-047-059-101-107-149-177-219-221-233-260844-
/O.CAN.KPAH.FF.W.0040.000000T0000Z-110426T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VANDERBURGH IN-PIKE IN-WARRICK IN-SPENCER IN-HENDERSON KY-DAVIESS KY-
MCLEAN KY-WEBSTER KY-HOPKINS KY-MUHLENBERG KY-CALDWELL KY-
CHRISTIAN KY-TODD KY-TRIGG KY-
335 AM CDT TUE APR 26 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SPENCER...
WARRICK...PIKE AND VANDERBURGH COUNTIES IN SOUTHWEST INDIANA...AND
HOPKINS...WEBSTER...MCLEAN...DAVIESS AND HENDERSON COUNTIES IN 
NORTHWEST KENTUCKY...AND TODD...CHRISTIAN...MUHLENBERG...TRIGG AND 
CALDWELL COUNTIES IN SOUTHWESTERN KENTUCKY...

PATCHES OF LIGHT TO MODERATE RAIN WILL CONTINUE EARLY THIS MORNING. 
HOWEVER...THE THREAT OF FLASH FLOODING FROM HEAVY DOWNPOURS HAS 
ENDED. 

LAT...LON 3793 8698 3767 8683 3748 8711 3722 8690
      3666 8706 3667 8807 3687 8817 3698 8789
      3721 8806 3737 8781 3765 8774 3787 8785
      3791 8771 3817 8770 3821 8732 3853 8748
      3854 8711 3821 8707 3821 8680 3807 8677

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 11:03 PM CDTFlash Flood WarningPAHCalloway, Crittenden, Graves, Livingston, Lyon, Marshall and 1 more5 hr
Apr 25, 11:33 PM CDTSevere Thunderstorm WarningPAHFulton, Graves, Hickman42 min
Apr 25, 11:49 PM CDTSevere Thunderstorm WarningPAHGraves, Livingston, McCracken, Marshall26 min
Apr 26, 12:26 AM CDTSevere Thunderstorm WarningPAHCaldwell, Calloway, Christian, Livingston, Lyon, Marshall and 1 more49 min
Apr 26, 12:54 AM CDTTornado WarningPAHCaldwell, Crittenden, Union, Webster36 min
Apr 26, 1:02 AM CDTSevere Thunderstorm WarningPAHCaldwell, Christian, Hopkins, Muhlenberg, Todd, Trigg43 min
Apr 26, 1:20 AM CDTSevere Thunderstorm WarningPAHDaviess, Henderson, Hopkins, McLean, Muhlenberg, Union and 1 more40 min
Apr 26, 1:49 AM CDTSevere Thunderstorm WarningPAHHenderson26 min
Apr 26, 3:20 PM CDTSevere Thunderstorm WarningPAHCalloway, Fulton, Graves, Hickman, Marshall25 min
Apr 26, 3:42 PM CDTTornado WarningPAHCalloway, Graves, Marshall, Trigg48 min
Apr 26, 3:47 PM CDTSevere Thunderstorm WarningPAHCaldwell, Christian, Hopkins, Livingston, Lyon, Marshall and 2 more43 min
Apr 26, 4:08 PM CDTTornado WarningPAHCaldwell, Crittenden, Livingston, Lyon37 min
Apr 26, 4:19 PM CDTSevere Thunderstorm WarningPAHFulton41 min
Apr 26, 4:26 PM CDTTornado WarningPAHCaldwell, Christian, Crittenden, Hopkins, Lyon, Muhlenberg and 1 more34 min
Apr 26, 4:33 PM CDTTornado WarningPAHCalloway, Trigg42 min
Apr 26, 4:50 PM CDTTornado WarningPAHFulton25 min
Apr 26, 4:52 PM CDTTornado WarningPAHDaviess, Hopkins, McLean, Webster38 min
Apr 26, 5:05 PM CDTTornado WarningPAHDaviess, Henderson, McLean24 min
Apr 26, 5:08 PM CDTTornado WarningPAHDaviess, Hopkins, McLean, Muhlenberg37 min
Apr 26, 5:10 PM CDTTornado WarningPAHFulton, Hickman35 min
Apr 26, 5:14 PM CDTTornado WarningPAHChristian, Trigg19 min
Apr 26, 5:38 PM CDTTornado WarningPAHBallard11 min
Apr 26, 5:40 PM CDTSevere Thunderstorm WarningPAHDaviess24 min
Apr 26, 5:47 PM CDTSevere Thunderstorm WarningPAHBallard15 min
Apr 26, 5:55 PM CDTSevere Thunderstorm WarningPAHGraves, Hickman35 min
Apr 26, 6:40 PM CDTTornado WarningPAHMarshall35 min
Apr 26, 6:43 PM CDTSevere Thunderstorm WarningPAHGraves32 min
Apr 26, 6:52 PM CDTSevere Thunderstorm WarningPAHGraves38 min
Apr 26, 6:56 PM CDTTornado WarningPAHCalloway, Lyon, Marshall, Trigg49 min
Apr 25, 10:00 PM CDTFlash Flood WarningPAHGibson, Posey6 hr
Apr 26, 1:57 AM CDTTornado WarningPAHWarrick19 min
Apr 26, 2:07 AM CDTTornado WarningPAHPike, Warrick12 min
Apr 26, 2:14 AM CDTSevere Thunderstorm WarningPAHPike16 min
Apr 26, 2:28 AM CDTTornado WarningPAHPike8 min
Apr 26, 5:53 PM CDTTornado WarningPAHPike, Spencer, Warrick18 min

Nearby

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