Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 29, NWS Paducah, KY

April 25, 201110 counties in Kentucky; 5 counties in Illinois

NWS Paducah, KY issued this flash flood warning at Apr 25, 2011, 5:21 AM CDT for 10 counties in Kentucky; 5 counties in Illinois. 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 25, 2011, 5:21 AM CDT (10:21 UTC)
Expired
Apr 25, 2011, 8:10 AM CDT
In force
3 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Gallatin County, IL, Hardin County, IL, Massac County, IL, Pope County, IL, Saline County, IL, Caldwell County, KY, Calloway County, KY, Crittenden County, KY, Graves County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Trigg County, KY, Union County, KY

The radar

The Paducah radar (KPAH), 60 km from the middle of the area, began a volume at 10:24 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 25, 6:29 AM CDTFLASH FLOODPaducah, KYWATER WAS FLOWING ACROSS 32ND STREET IN 5 PLACES.

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

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.4 hours before the alert went out and 192 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 2011-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1210 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 00:00Z on 2011-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
1210 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1316 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.7

Open this sounding in Storm Lab

The text

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

420 
WGUS53 KPAH 251021
FFWPAH
ILC059-069-127-151-165-KYC033-035-055-083-139-143-145-157-221-225-
251415-
/O.NEW.KPAH.FF.W.0029.110425T1021Z-110425T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
521 AM CDT MON APR 25 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  UNION COUNTY IN NORTHWEST KENTUCKY...
  GALLATIN COUNTY IN SOUTHERN ILLINOIS...
  HARDIN COUNTY IN SOUTHERN ILLINOIS...
  MASSAC COUNTY IN SOUTHERN ILLINOIS...
  POPE COUNTY IN SOUTHERN ILLINOIS...
  SALINE COUNTY IN SOUTHERN ILLINOIS...
  CALDWELL COUNTY IN WESTERN KENTUCKY...
  CALLOWAY COUNTY IN WESTERN KENTUCKY...
  CRITTENDEN COUNTY IN WESTERN KENTUCKY...
  GRAVES COUNTY IN WESTERN KENTUCKY...
  LIVINGSTON COUNTY IN WESTERN KENTUCKY...
  LYON COUNTY IN WESTERN KENTUCKY...
  MARSHALL COUNTY IN WESTERN KENTUCKY...
  MCCRACKEN COUNTY IN WESTERN KENTUCKY...
  TRIGG COUNTY IN WESTERN KENTUCKY...

* UNTIL 915 AM CDT.

* AT 518 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORMS OVER THE WARNED AREA.

AT 520 AM...RADAR INDICATED A LARGE AREA OF SHOWERS AND 
THUNDERSTORMS WAS MOVING NORTHEAST INTO THE WARNED AREA. RADAR 
ESTIMATES RAINFALL RATES APPROACHING ONE INCH AN HOUR. THIS WILL 
ONLY EXACERBATE ANY ONGOING FLOODING.

* LOCATIONS IN THE WARNING INCLUDE...
  PADUCAH...
  HARRISBURG...
  MURRAY...
  MAYFIELD...
  CALVERT CITY...
  EDDYVILLE...
  SALEM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

&&

LAT...LON 3653 8882 3690 8880 3728 8892 3737 8871
      3791 8871 3791 8812 3780 8807 3777 8796
      3781 8791 3790 8793 3777 8777 3765 8774
      3744 8795 3737 8781 3731 8785 3717 8772
      3665 8772 3667 8806 3652 8804

$$
2 follow-up statements
918 
WGUS73 KPAH 251129
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
629 AM CDT MON APR 25 2011

ILC059-069-127-151-165-KYC033-035-055-083-139-143-145-157-221-225-
251415-
/O.CON.KPAH.FF.W.0029.000000T0000Z-110425T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MASSAC IL-POPE IL-HARDIN IL-SALINE IL-GALLATIN IL-UNION KY-
CRITTENDEN KY-LIVINGSTON KY-CALDWELL KY-MCCRACKEN KY-LYON KY-
MARSHALL KY-TRIGG KY-GRAVES KY-CALLOWAY KY-
629 AM CDT MON APR 25 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR
GALLATIN...SALINE...HARDIN...POPE AND MASSAC COUNTIES IN SOUTHERN
ILLINOIS...AND UNION COUNTY IN NORTHWEST KENTUCKY...AND CALLOWAY...
GRAVES...TRIGG...MARSHALL...LYON...MCCRACKEN...CALDWELL...LIVINGSTON
AND CRITTENDEN COUNTIES IN WESTERN KENTUCKY...

AT 624 AM CDT...TRAINED WEATHER SPOTTERS REPORTED FLOODING ON 
NUMEROUS ROADS AND CITY STREETS. IN PADUCAH 32ND STREET ALONE HAD 
WATER FLOWING ACROSS THE ROAD IN 5 PLACES. EVEN THOUGH THE HEAVIEST 
RAIN HAD MOVED EAST OF SOME LOCATIONS IN THE WARNING...IT WILL TAKE 
SEVERAL HOURS FOR THE FLOODING TO RECEDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 3653 8882 3690 8880 3728 8892 3737 8871
      3791 8871 3791 8812 3780 8807 3777 8796
      3781 8791 3790 8793 3777 8777 3765 8774
      3744 8795 3737 8781 3731 8785 3717 8772
      3665 8772 3667 8806 3652 8804

$$
495 
WGUS73 KPAH 251310
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
810 AM CDT MON APR 25 2011

ILC059-069-127-151-165-KYC033-035-055-083-139-143-145-157-221-225-
251320-
/O.CAN.KPAH.FF.W.0029.000000T0000Z-110425T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MASSAC IL-POPE IL-HARDIN IL-SALINE IL-GALLATIN IL-UNION KY-
CRITTENDEN KY-LIVINGSTON KY-CALDWELL KY-MCCRACKEN KY-LYON KY-
MARSHALL KY-TRIGG KY-GRAVES KY-CALLOWAY KY-
810 AM CDT MON APR 25 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR GALLATIN...
SALINE...HARDIN...POPE AND MASSAC COUNTIES IN SOUTHERN ILLINOIS...AND
UNION COUNTY IN NORTHWEST KENTUCKY...AND CALLOWAY...GRAVES...TRIGG...
MARSHALL...LYON...MCCRACKEN...CALDWELL...LIVINGSTON AND CRITTENDEN
COUNTIES IN WESTERN KENTUCKY...

THE RAIN THAT CAUSED THE FLASH FLOODING HAD MOVED OUT OF THE AREA. 
IN CONTRAST THERE IS STILL FLOODING IN PROGRESS OVER THE WARNED 
AREA...BUT IT IS NOT FLASH FLOODING. THIS IS ALSO THE REASON THE 
AREA FLOOD WARNING WILL REMAIN IN EFFECT FOR NOW. REPEATING FLASH 
FLOOD WARNING HAS BEEN CANCELLED BUT THE AREA FLOOD WARNING 
CONTINUES.


LAT...LON 3653 8882 3690 8880 3728 8892 3737 8871
      3791 8871 3791 8812 3780 8807 3777 8796
      3781 8791 3790 8793 3777 8777 3765 8774
      3744 8795 3737 8781 3731 8785 3717 8772
      3665 8772 3667 8806 3652 8804

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 9:55 PM CDTAreal Flood WarningPAHBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more59 hr
Apr 25, 12:39 AM CDTFlash Flood WarningPAHBallard, Carlisle, Fulton, Hickman, Livingston, McCracken2 hr
Apr 25, 3:51 AM CDTFlash Flood WarningPAHBallard, Carlisle, Fulton, Hickman3 hr
Apr 25, 6:16 AM CDTFlash Flood WarningPAHChristian, Daviess, Henderson, Hopkins, McLean, Muhlenberg and 3 more4 hr
Apr 25, 3:06 PM CDTTornado WarningPAHCalloway, Trigg39 min
Apr 25, 3:18 PM CDTFlash Flood WarningPAHCaldwell, Calloway, Christian, Graves, Hopkins, Lyon and 4 more3 hr
Apr 25, 3:45 PM CDTTornado WarningPAHChristian, Todd, Trigg45 min
Apr 25, 4:29 PM CDTTornado WarningPAHChristian, Muhlenberg, Todd34 min
Apr 25, 4:44 PM CDTTornado WarningPAHMuhlenberg16 min
Apr 25, 4:48 PM CDTSevere Thunderstorm WarningPAHDaviess, McLean, Muhlenberg42 min
Apr 25, 4:58 PM CDTFlash Flood WarningPAHDaviess, Henderson, Hopkins, McLean, Webster118 min
Apr 25, 6:46 PM CDTFlash Flood WarningPAHBallard, Carlisle, Fulton, Hickman, McCracken6 hr
Apr 24, 11:05 PM CDTSevere Thunderstorm WarningPAHAlexander, Pulaski, Union40 min
Apr 24, 11:48 PM CDTFlash Flood WarningPAHAlexander, Jackson, Johnson, Pulaski, Union, Williamson3 hr
Apr 25, 12:06 AM CDTSevere Thunderstorm WarningPAHJohnson, Pope, Saline, Williamson17 min
Apr 25, 12:58 AM CDTFlash Flood WarningPAHEdwards, Gallatin, Hamilton, Saline, Wabash, Wayne and 1 more3 hr
Apr 25, 1:26 AM CDTFlash Flood WarningPAHJackson3 hr
Apr 25, 6:41 PM CDTTornado WarningPAHJackson34 min
Apr 25, 6:57 PM CDTSevere Thunderstorm WarningPAHJackson, Perry, Union48 min

Nearby

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